This was formerly stated to be for the SainSmart relay modules, but it was later pointed out to me that these boards actually already have this logic built in to them. 8 12kΩ ¼ Watt Resistors This ...
5v Power Relay Module I built some relay modules. There are Fritzing files for a version with a status LED and one without. I also wrote a couple of blog posts, including an assembly video in part 2 ...
A relay module is an electrical component. Various industries use this circuit board that houses one or more electric switches or relays in different circuits and electrical projects. Relay boards are ...
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