/challenges-projects/design-challenges/1-meter-of-pi/b/blog/posts/1-meter-of-pi-blog-6Welllll Relays are very interesting. I'm setting up one right now, with an arduino uno. I've set the setting for 1 second of high-stream water dispense, per every 6 hours. Here's the code. int RelayPin = 12; void setup() {...en-USTelligent Community 12