This project requires the following hardware: an Arduino board (this was developed on a Leonardo, but should work with any other Arduino board) one Arduino digital pin for each relay, by default pins ...

$4 Wemos D1 mini ESP8266 Board Supports Shields with a Temperature Sensor, a Button, a Relay, or a micro SD slot Wemos D1 board, a $9 ESP8266 board in Arduino UNO form factor, now has a little brother ...

This Arduino library allows you to use Deneyap Relay with I2C peripheral. You can use this library in your projects with any Arduino compatible board with I2C peripheral.

The Lily Pad main board is using the FT232RL integrated circuit from FTDI. It is a basic breakout board that uses USB to serial IC. The FTDI cable is matched with the pin-out of this board in order to ...

PiRelay 8 is a relay board for Raspberry Pi with a 4.3-inch touchscreen display connected via HDMI and USB, 8x opto-isolated relays.

The expansion board is claimed to be the world's first to enable the development of 3.3V Arduino compatible applications using a 32-bit high-performance MCU in a prototyping friendly package.

To drive a relay from the Pi, one needs to cobble up a fairly simple circuit where the 3.3V GPIO pin turns on a transistor that drives the relay. This is such a common requirement that I figured ...

The 4 channel smart relay board is powered by a ESP32 WROOM providing the ability to safely control up to four appliances or devices on a load of 110-250 VAC/7A, 30 VDC/10A depending on your needs.