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Interesting project. By why no USB? Why does it have a Relay?
by matthewfelgate 6y ago
Interesting project. By why no USB? Why does it have a Relay?
- gramsejr 6y agoWhat do you mean by no USB? There is a CH340C uart to USB chip onboard and a micro usb port. Is there something specific you're looking for? The relay would just be used as a switch to turn on/off an external device using higher voltages, AC or DC.