I finally got around to making a video of my new relay module! Check it out!
I am using the Arduino Mega 2560 to drive the relays. The digital outputs on the Arduino (5V) are used to switch the relays on and off. The relays are switching a 3.3V source from the Arduino to turn on the green and yellow LED’s. The program divides the time delay by 2 on every loop through the 8 channels until it reaches about 10 milliseconds between switching.
Here is a link to the code that I wrote: relay_test_code
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