#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 ...

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.

The Raspberry Pi Pico board's pinout tells us that there are 2 x SPI, 2 x I2C and 2 x UART. These all work fine as far as my tests have confirmed. Please could we get the pins_arduino.h file updated ...

[Trent M. Wyatt]’s CPUVolt library provides a fast way to measure voltage using no external components, and no I/O pin. It only applies to certain microcontrollers, but he provides example Ar… ...

Leonardo Russo’s ArduinoSimulator is an open-source Arduino Simulator written in JavaScript that runs code directly in your web browser and shows the serial output and digital/analog pins status for ...