#define ifpin(p,what,ifnot) (((p) >= 0 && (p) < NUM_DIGITAL_PINS) ? (what) : (ifnot)) #define digitalPinHasPWM(p) ifpin(p,pgm_read_byte(digital_pin_to_timer_PGM + (p ...

See PCINT pin table at the bottom for more details. Arduino Uno/Nano/Mini: All pins are usable Arduino Mega: 10, 11, 12, 13, 50, 51, 52, 53, A8 (62), A9 (63), A10 (64 ...

This is a simple 0 to 9 counter circuit constructed using Arduino! Here, a common cathode 7-segment LED display is connected to Arduino for displaying the digits. The code (Arduino sketch) allows push ...

Arduino is very popular for building hobby projects and games, and we have previously used Arduino to build Snake game, Ping pong game, Space race game, etc. Today we are building one more popular ...

Arduino Micro has some extra leds that it is tricky to programme. Like almost all Arduinos, has a built-in led – the green one on the left in the photo. And it has a pair of yellow leds – called TX ...

This project turns the Arduino into an OBD2 on-board diagnostic tester. So, the Arduino can read OBD2 vehicle data and it can read and clear emissions-related diagnostic trouble codes and ...