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witnessmenow / ESP32-Trinity

An Open Source ESP32 board for connecting to HUB75 Matrix Panels
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+5v position <> before Diode or after Diode #1

Closed Kamal-Sonani closed 2 years ago

Kamal-Sonani commented 2 years ago

what if I give reverse polarity to board? as per design I think +5v firstly pass through Diode(D2)

& if not ,Capacitor will Blast but rest of circuit remain. Correct me 🧐 with logic.

waiting for final release.

witnessmenow commented 2 years ago

Potentially, the purpose of D2 is to allow the barrel jack to power the esp32 side of the circuit, while providing a stop for the USB from powering the matrix panel unless the user specifically configures for that using the jumper pins.

If you have a project that uses 2A on the panel and you want to program it with USB, there needs to be a way to power the esp32 while not powering the panel.

There is no reverse polarity protection in this version of the design.

witnessmenow commented 2 years ago

I'm going to close this as I don't feel like there is any action to be taken on it at the moment