Convert some more boards to Matrix Lite (#15489)

20 files changed, 206 insertions, 1130 deletions

diff --git a/keyboards/centromere/matrix.c b/keyboards/centromere/matrix.c
index a46701275a..bbd771f41b 100644
--- a/keyboards/centromere/matrix.c
+++ b/keyboards/centromere/matrix.c
@@ -15,77 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(500000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF remote slave to send the matrix information
     uart_write('s');
@@ -96,9 +37,9 @@ uint8_t matrix_scan(void)
     //there are 10 bytes corresponding to 1w columns, and an end byte
     for (uint8_t i = 0; i < 11; i++) {
         //wait for the serial data, timeout if it's been too long
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -107,47 +48,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 5;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 5;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/centromere/rules.mk b/keyboards/centromere/rules.mk
index 15c6a20746..113e1e6aff 100644
--- a/keyboards/centromere/rules.mk
+++ b/keyboards/centromere/rules.mk
@@ -11,16 +11,18 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
-NKRO_ENABLE = yes           # Enable N-Key Rollover
-BACKLIGHT_ENABLE = no  # Enable keyboard backlight functionality
-UNICODE_ENABLE = yes 		# Unicode
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+UNICODE_ENABLE = yes
+CUSTOM_MATRIX = lite
 
-# # project specific files
+# project specific files
 SRC += matrix.c
 QUANTUM_LIB_SRC += uart.c
 
diff --git a/keyboards/chimera_ergo/matrix.c b/keyboards/chimera_ergo/matrix.c
index ec438beb56..603ad0f386 100644
--- a/keyboards/chimera_ergo/matrix.c
+++ b/keyboards/chimera_ergo/matrix.c
@@ -15,86 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_quantum(void) {
-    matrix_init_kb();
-}
-
-__attribute__ ((weak))
-void matrix_scan_quantum(void) {
-    matrix_scan_kb();
-}
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -107,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -118,47 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 6;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 6;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/chimera_ergo/rules.mk b/keyboards/chimera_ergo/rules.mk
index 483485cb7d..8cb1736147 100644
--- a/keyboards/chimera_ergo/rules.mk
+++ b/keyboards/chimera_ergo/rules.mk
@@ -8,14 +8,16 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+CUSTOM_MATRIX = lite
 
-# # project specific files
+# project specific files
 SRC += matrix.c
 QUANTUM_LIB_SRC += uart.c
diff --git a/keyboards/chimera_ls/matrix.c b/keyboards/chimera_ls/matrix.c
index 354346ca09..a92c3e8431 100644
--- a/keyboards/chimera_ls/matrix.c
+++ b/keyboards/chimera_ls/matrix.c
@@ -15,90 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#elif (MATRIX_COLS <= 64)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse64(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop64(matrix[i])
-#    define ROW_SHIFTER  ((uint64_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_quantum(void) {
-    matrix_init_kb();
-}
-
-__attribute__ ((weak))
-void matrix_scan_quantum(void) {
-    matrix_scan_kb();
-}
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -111,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -122,47 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 5;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 5;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/chimera_ls/rules.mk b/keyboards/chimera_ls/rules.mk
index ae0cc8b749..b7f6db5aa5 100644
--- a/keyboards/chimera_ls/rules.mk
+++ b/keyboards/chimera_ls/rules.mk
@@ -8,13 +8,15 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+CUSTOM_MATRIX = lite
 
 # project specific files
 SRC += matrix.c
diff --git a/keyboards/chimera_ortho/matrix.c b/keyboards/chimera_ortho/matrix.c
index 1403f410c0..a92c3e8431 100644
--- a/keyboards/chimera_ortho/matrix.c
+++ b/keyboards/chimera_ortho/matrix.c
@@ -15,76 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -97,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -108,47 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 5;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 5;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/chimera_ortho/rules.mk b/keyboards/chimera_ortho/rules.mk
index c35dc9ba2e..8cb1736147 100644
--- a/keyboards/chimera_ortho/rules.mk
+++ b/keyboards/chimera_ortho/rules.mk
@@ -8,13 +8,15 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+CUSTOM_MATRIX = lite
 
 # project specific files
 SRC += matrix.c
diff --git a/keyboards/chimera_ortho_plus/matrix.c b/keyboards/chimera_ortho_plus/matrix.c
index 51898e35d1..603ad0f386 100644
--- a/keyboards/chimera_ortho_plus/matrix.c
+++ b/keyboards/chimera_ortho_plus/matrix.c
@@ -15,76 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -97,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -108,47 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 6;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 6;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/chimera_ortho_plus/rules.mk b/keyboards/chimera_ortho_plus/rules.mk
index cd98979306..0a8a31e7dd 100644
--- a/keyboards/chimera_ortho_plus/rules.mk
+++ b/keyboards/chimera_ortho_plus/rules.mk
@@ -17,7 +17,7 @@ BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
 UNICODE_ENABLE = yes
-CUSTOM_MATRIX = yes
+CUSTOM_MATRIX = lite
 
 # project specific files
 SRC += matrix.c
diff --git a/keyboards/comet46/matrix.c b/keyboards/comet46/matrix.c
index 1403f410c0..a92c3e8431 100644
--- a/keyboards/comet46/matrix.c
+++ b/keyboards/comet46/matrix.c
@@ -15,76 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -97,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -108,47 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 5;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 5;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/comet46/rules.mk b/keyboards/comet46/rules.mk
index 10d828cc7f..e177fc6441 100644
--- a/keyboards/comet46/rules.mk
+++ b/keyboards/comet46/rules.mk
@@ -8,13 +8,15 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = no    # Mouse keys
-EXTRAKEY_ENABLE = no    # Audio control and System control
-CONSOLE_ENABLE = no     # Console for debug
-COMMAND_ENABLE = no     # Commands for debug and configuration
-CUSTOM_MATRIX = yes     # Remote matrix from the wireless bridge
+MOUSEKEY_ENABLE = no        # Mouse keys
+EXTRAKEY_ENABLE = no        # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
 NKRO_ENABLE = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+CUSTOM_MATRIX = lite
 
 # project specific files
 SRC += matrix.c \
diff --git a/keyboards/mitosis/matrix.c b/keyboards/mitosis/matrix.c
index 102431eb67..a92c3e8431 100644
--- a/keyboards/mitosis/matrix.c
+++ b/keyboards/mitosis/matrix.c
@@ -15,77 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -98,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -109,47 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 5;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 5;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/mitosis/rules.mk b/keyboards/mitosis/rules.mk
index 04cafae718..0a8a31e7dd 100644
--- a/keyboards/mitosis/rules.mk
+++ b/keyboards/mitosis/rules.mk
@@ -8,15 +8,17 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
-UNICODE_ENABLE = yes 		# Unicode
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+UNICODE_ENABLE = yes
+CUSTOM_MATRIX = lite
 
-# # project specific files
+# project specific files
 SRC += matrix.c
 QUANTUM_LIB_SRC += uart.c
diff --git a/keyboards/redox_w/matrix.c b/keyboards/redox_w/matrix.c
index 752324837c..fd25231d9e 100644
--- a/keyboards/redox_w/matrix.c
+++ b/keyboards/redox_w/matrix.c
@@ -13,86 +13,18 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_quantum(void) {
-    matrix_init_kb();
-}
-
-__attribute__ ((weak))
-void matrix_scan_quantum(void) {
-    matrix_scan_kb();
-}
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -105,9 +37,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -116,47 +48,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 7;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 7;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-
-    matrix_scan_quantum();
-    return 1;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/redox_w/rules.mk b/keyboards/redox_w/rules.mk
index 483485cb7d..8cb1736147 100644
--- a/keyboards/redox_w/rules.mk
+++ b/keyboards/redox_w/rules.mk
@@ -8,14 +8,16 @@ BOOTLOADER = caterina
 #   change yes to no to disable
 #
 BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
-MOUSEKEY_ENABLE = yes	# Mouse keys
-EXTRAKEY_ENABLE = yes	# Audio control and System control
-CONSOLE_ENABLE = yes	# Console for debug
-COMMAND_ENABLE = yes   # Commands for debug and configuration
-CUSTOM_MATRIX = yes    # Remote matrix from the wireless bridge
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = yes        # Console for debug
+COMMAND_ENABLE = yes        # Commands for debug and configuration
 NKRO_ENABLE = yes           # Enable N-Key Rollover
-# BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+CUSTOM_MATRIX = lite
 
-# # project specific files
+# project specific files
 SRC += matrix.c
 QUANTUM_LIB_SRC += uart.c
diff --git a/keyboards/sirius/uni660/rev1/matrix.c b/keyboards/sirius/uni660/rev1/matrix.c
index 65c35c968b..919db5c80d 100644
--- a/keyboards/sirius/uni660/rev1/matrix.c
+++ b/keyboards/sirius/uni660/rev1/matrix.c
@@ -15,80 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
-#include "debounce.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-    debounce_init(MATRIX_ROWS);
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
-    bool matrix_has_changed = false;
-
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -101,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -112,49 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 8;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 8;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-    debounce(matrix, matrix, MATRIX_ROWS, matrix_has_changed);
-
-    matrix_scan_quantum();
-
-    return matrix_has_changed;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/sirius/uni660/rev1/rules.mk b/keyboards/sirius/uni660/rev1/rules.mk
index 77b9af362e..71cc3efd92 100644
--- a/keyboards/sirius/uni660/rev1/rules.mk
+++ b/keyboards/sirius/uni660/rev1/rules.mk
@@ -17,7 +17,7 @@ BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
 UNICODE_ENABLE = yes        # Unicode
-CUSTOM_MATRIX = yes
+CUSTOM_MATRIX = lite
 
 # project specific files
 SRC += matrix.c
diff --git a/keyboards/sirius/uni660/rev2/matrix.c b/keyboards/sirius/uni660/rev2/matrix.c
index 65c35c968b..919db5c80d 100644
--- a/keyboards/sirius/uni660/rev2/matrix.c
+++ b/keyboards/sirius/uni660/rev2/matrix.c
@@ -15,80 +15,18 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
-#include <stdint.h>
-#include <stdbool.h>
-#if defined(__AVR__)
-#include <avr/io.h>
-#endif
-#include "wait.h"
-#include "print.h"
-#include "debug.h"
-#include "util.h"
+
+#include "quantum.h"
 #include "matrix.h"
-#include "timer.h"
-#include "debounce.h"
 #include "uart.h"
 
-#if (MATRIX_COLS <= 8)
-#    define print_matrix_header()  print("\nr/c 01234567\n")
-#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop(matrix[i])
-#    define ROW_SHIFTER ((uint8_t)1)
-#elif (MATRIX_COLS <= 16)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop16(matrix[i])
-#    define ROW_SHIFTER ((uint16_t)1)
-#elif (MATRIX_COLS <= 32)
-#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
-#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
-#    define matrix_bitpop(i)       bitpop32(matrix[i])
-#    define ROW_SHIFTER  ((uint32_t)1)
-#endif
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void) {
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void) {
-    return MATRIX_COLS;
-}
-
-void matrix_init(void) {
-    debounce_init(MATRIX_ROWS);
-    matrix_init_quantum();
+void matrix_init_custom(void) {
     uart_init(1000000);
 }
 
-uint8_t matrix_scan(void)
-{
-    bool matrix_has_changed = false;
-
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     uint32_t timeout = 0;
+    bool changed = false;
 
     //the s character requests the RF slave to send the matrix
     uart_write('s');
@@ -101,9 +39,9 @@ uint8_t matrix_scan(void)
         //wait for the serial data, timeout if it's been too long
         //this only happened in testing with a loose wire, but does no
         //harm to leave it in here
-        while(!uart_available()){
+        while (!uart_available()) {
             timeout++;
-            if (timeout > 10000){
+            if (timeout > 10000) {
                 break;
             }
         }
@@ -112,49 +50,16 @@ uint8_t matrix_scan(void)
 
     //check for the end packet, the key state bytes use the LSBs, so 0xE0
     //will only show up here if the correct bytes were recieved
-    if (uart_data[10] == 0xE0)
-    {
+    if (uart_data[10] == 0xE0) {
         //shifting and transferring the keystates to the QMK matrix variable
         for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-            matrix[i] = (uint16_t) uart_data[i*2] | (uint16_t) uart_data[i*2+1] << 8;
+            matrix_row_t current_row = (uint16_t) uart_data[i * 2] | (uint16_t) uart_data[i * 2 + 1] << 8;
+            if (current_matrix[i] != current_row) {
+                changed = true;
+            }
+            current_matrix[i] = current_row;
         }
     }
 
-    debounce(matrix, matrix, MATRIX_ROWS, matrix_has_changed);
-
-    matrix_scan_quantum();
-
-    return matrix_has_changed;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print_matrix_header();
-
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        print_hex8(row); print(": ");
-        print_matrix_row(row);
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += matrix_bitpop(i);
-    }
-    return count;
+    return changed;
 }
diff --git a/keyboards/sirius/uni660/rev2/rules.mk b/keyboards/sirius/uni660/rev2/rules.mk
index f3ff80d92e..850c2a2e35 100644
--- a/keyboards/sirius/uni660/rev2/rules.mk
+++ b/keyboards/sirius/uni660/rev2/rules.mk
@@ -17,7 +17,7 @@ BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
 RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
 UNICODE_ENABLE = yes        # Unicode
-CUSTOM_MATRIX = yes
+CUSTOM_MATRIX = lite
 
 # project specific files
 SRC += matrix.c