1 files changed, 6 insertions, 1 deletions
diff --git a/FAQ.md b/FAQ.md
index 8df23af92e..ada0205caa 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -106,4 +106,9 @@ Signal--+------|PD0   |
 GND------------|GND   |
                `------'
 R: 1K Ohm resistor
-```
-\ No newline at end of file
+```
+
+
+## Arduino Micro with ATMega32U4
+Note that Arduino Micro PCB marking is different from real AVR port name. D0 of Arduino Micro is not PD0, PD0 is D3. Check schematic yourself.
+http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf
+\ No newline at end of file