Go to the documentation of this file. 5 #ifndef ARDUINO_AVR_NANO 6 #error This file is for Nano only 9 #define SIGNAL_LED_1 LED_BUILTIN // 13 10 #define SIGNAL_LED_2 A1 11 #define SIGNAL_LED_2_GND A0 12 #define SIGNAL_LED_3 A3 13 #define SIGNAL_LED_3_GND A2 14 #define SIGNAL_LED_4 A5 15 #define SIGNAL_LED_4_GND A4 21 #define IRSENSOR_1_GND 9 22 #define IRSENSOR_1_VCC 10 24 #define IRRECEIVER_1_PIN 5 26 #define IRRECEIVER_1_GND 6 27 #define IRRECEIVER_1_VCC 7