diff options
| -rw-r--r-- | cores/arduino/wiring_analog.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/cores/arduino/wiring_analog.c b/cores/arduino/wiring_analog.c index 81fb1e1..a6b63e3 100644 --- a/cores/arduino/wiring_analog.c +++ b/cores/arduino/wiring_analog.c @@ -42,6 +42,9 @@ int analogRead(uint8_t pin) uint8_t low, high; #if defined(analogPinToChannel) +#if defined(__AVR_ATmega32U4__) + if (pin >= 18) pin -= 18; // allow for channel or pin numbers +#endif pin = analogPinToChannel(pin); #elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) if (pin >= 54) pin -= 54; // allow for channel or pin numbers |