This I2C 32-channel relay controller was designed to function as a shield for Particle Electron.
Control relays from the cloud using cellular connectivity or develop your own relay control firmware. Relay control is easy using our firmware examples in our GitHub repository.
Cellular connectivity means you have access to this device in any location supported by the Particle Electron cellular communications module (not included). Ideal for agricultural or remotely located switching applications, including pumps, valves, solenoids, lights, and much more. Providing cellular access means you have a way to stay connected and in control in the most remote locations without wires.
Stay Connected to the cloud and access this controller from anywhere in the world using Particle Electron. Don’t forget to visit our GitHub repository, which allows you to download and customize the firmware in this device for your specific needs.
This controller includes an on-board I2C expansion port, allowing an easy pathway to expansion for controlling more relays, reading sensors, or expanding to any I2C device we develop in the future. Up to eight MCP23017 based devices may be connected to a single I2C port. This controller counts as 2 devices.
IoT Motherboard Compatibility
This is an I²C Master Device, capable of directly connecting to any of our Cross-Platform I²C Slave Devices using the I²C Output. It is directly compatible with:
If using a Particle module, the PKFR Key Fob Receiver overlay shield may be used.
This device may be converted for direct use with:
Arduino Nano using the Arduino Nano Adapter
Arduino Micro using the Arduino Micro Adapter
Onion Omega 1&2 using the OC Adapter
Pycom WiPy using the WiPy Adapter
Adafruit Huzzah ESP8266 using the Adafruit Huzzah Adapter
This device may be converted to an I²C slave device using the Slave Adapter, ideal for use with Raspberry Pi, Beaglebone, Arduino Uno, and BridgeX5.
Use the Slave Adapter and a Arduino Uno Interface Adapter
Use the Slave Adapter and a Arduino Nano I²C Shield
Use the Slave Adapter and plug into any Arduino Nano Master Device
Use the Slave Adapter and plug into any Arduino Micro Master Device
Raspberry Pi Interfaces:
Use the Slave Adapter and a Raspberry Pi I²C Interface Adapter
Use the Slave Adapter and a Raspberry Pi 2/3 I²C Interface Adapter
Use the Slave Adapter and a Raspberry Pi Zero I²C Interface Adapter