If you need cloud connectivity, you need Particle Photon! Take control of automation and sensing from anywhere in the world with this relay shield for Photon!*
The on-board MCP23008 Port Expander (from Microchip) offers an excellent platform for I2C relay control. This 2-Channel Relay Shield dedicates 2 MCP23008 Digital I/O Pins to relay control while offering the remaining 6 Digital I/O pins for external use.
This Relay Shield for Particle Photon makes it easy to expand its capabilities with an integrated I2C expansion port and double-row header, providing wire access to your Particle Photon. Plug in any of our expansion shields directly over the Particle Photon.
Integrated +5V 500ma Switcher Regulator provides plenty of power to the Particle Photon, I2C Port, and any off-board circuits you may require.
Use any of our I2C Mini Modules to expand the capabilities of this shield to include a wide range of sensors, more relays, or any other I2C device we make in the future!
Operates on +12VDC using a 2.1mm barrel connector (center positive) or 2-wire terminal block.
*Particle Photon not included.