The RaspPi and the Arduino communicate via UART as [Steve] felt it was a bit simpler than going the SPI or I2C route. The RaspPi GPIO’s run on 3.3v and the ATMEGA328’s like 5v.

They developed a stackable Arduino-compatable board for the Raspberry Pi. Right off the bat, the AlaMode plugs directly into the GPIO pins of the Raspberry Pi.

GPIO programming on a Raspberry Pi using Arduino's Web IDE - this post brings Raspberry Pi and Arduino together.

The Evive has a USB port, digital to analog converter, data acquisition channels, real-time clock, SD slot, communication hub, and Shield stack Arduino GPIO.

Enrico takes us behind the lens of his PONF camera project. In this installment he is hacking the shutter mechanism of a Cannon 60D.

System.Device.Gpio is a new open-source library for .Net Core that aims to enable IoT applications to interact with sensors, displays, and input devices through their GPIO pins or other I/O ...