How to connect Qwiic Relay to arduino uno R3?

Qwiic System
1

How would one connect the Ardunio Uno R3 directly to the Qwiic Single Relay?

2

Hello,

You should connect to the pins “GND, 3.3V, SDA, SCL” on one side of the board shown below:

https://drive.google.com/file/d/14_1qXo … sp=sharing

On the UNO R3, the SDA and SCL pins are D18 and D19: https://content.arduino.cc/assets/Pinou … latest.png

3

Got it - how do you send a message to turn it on? Or should the software find it? Can you point to a quick example?

4

You’ll want to follow the hookup guide, here: https://learn.sparkfun.com/tutorials/qw … okup-guide