1 Reply by David_PhD

(2 replies, posted in Elements)

scorpio810 wrote:

Hello David,
please share them, just edit your post to see file upload.]

One is something commonly used and recognizable, a 4-relay module for Arduino.

Like this?
https://qelectrotech.org/forum/viewtopi … 661#p13661


Sure, I'm not used to forums and didn't know I also had to click on “add file.” Okay, I've uploaded both files and a zip file with both of them.


Yes, it's the link you sent me, which is 8, but I made the 4 relay module which had been missing.

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2 Topic by David_PhD

(2 replies, posted in Elements)

I would like to share a couple of items I have designed for QElectroTech. One is something commonly used and recognizable, a 4-relay module for Arduino.

The other is something less well known. It is a board called CoolDrive designed by NResearch. It is designed to extend the life of its own valves. It is something I have not found anywhere else and would be a plus if it were included in your open source program.

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