This device allows you to control large power loads with simple I2C commands.
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Firmware adding example code Jan 2, 2019
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LICENSE.md
README.md

README.md

SparkFun Qwiic Single Relay

SparkFun Qwiic Single Relay

SparkFun Qwiic Single Relay (COM-15093) Have you ever wanted to control something powerful? Have you ever needed to turn on/off a high voltage device from your Arduino? Now you can with the Qwiic Relay! This device allows you to control large power loads with simple I2C commands. The Qwiic Relay can handle 10 Amps at 120 Volts AC, perfect for large inductive loads like DC motors or blenders.

The Qwiic Relay comes with a default I2C address but can be changed with a simple command allowing you to control over 100 Qwiic Relays on a single bus!1

The Qwiic Relay comes fully assembled and uses the simple Qwiic interface. No soldering, no voltage translation, no figuring out which pin is SDA or SCL, just plug and go!

Note: Controlling high voltage (110/220VAC) requires certain precautions. A beginner can do it but if you're unsure then please consider the pre-made IoT Power Relay. It's not I2C but the IoT Power Relay contains shielding to prevent accidental shock.

Footnote 1: Toggling lots of relays on a 3.3V bus can cause voltage spikes. An external power supply will be required.

Repository Contents

  • /Documents - Datasheets
  • /Firmware - Latest firmware and examples.
  • /Hardware - Eagle design files (.brd, .sch)

Documentation

License Information

This product is open source!

Please review the LICENSE.md file for license information.

If you have any questions or concerns on licensing, please contact techsupport@sparkfun.com.

Please use, reuse, and modify these files as you see fit. Please maintain attribution to SparkFun Electronics and release under the same license.

Distributed as-is; no warranty is given.

  • Your friends at SparkFun.