Functional mapping would try to match the pins with special functions (like serial, SPI, I2C, analog input and PWM output) as closely as possible. Geometrical mapping would choose a logical order of ...

In SAMD Arduino it is possible to map an arduino pin number to a specific pin on a per-board basis? Is the same possible with the ESP32 arduino version? I only see extra variables like D1 = 7; in ...

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 ...

Enter the ExtraCore library for Arduino, a software library that turns two or more Arduinos into a multi-core microcontroller with more pins than you’ll ever need.

In this tutorial we are going to use the Charlieplexing technique with Arduino to control the 12 LEDs using 4 Arduino pins.