Search found 3 matches

by lkos98
Mon Aug 18, 2025 11:00 am
Forum: Hardware
Topic: Battery with esp32 s3 supermini
Replies: 3
Views: 1959

Re: Battery with esp32 s3 supermini

Great, thanks for the schematic. I could not find one. You are right about load on Vcc, but why would uploading a code short the VCC to GND? And I can tell for sure it happens only when uploading - I have burnt 3 of those the same way. Pity - it's a very nice board, cheap and small and battery ...
by lkos98
Mon Aug 18, 2025 7:49 am
Forum: Hardware
Topic: Battery with esp32 s3 supermini
Replies: 3
Views: 1959

Battery with esp32 s3 supermini

It's just to let people know of a design flaw of esp32 s3 supermini with battery pins.
Symptoms: When a battery and USB are both connected and code is uploaded, S3 Supermini stops working on battery only. 3.3V pin shows 2.3-2.4 volts.
Reason: There is a Schottky diode connected between 5V and ...
by lkos98
Thu May 23, 2024 6:57 am
Forum: ESP32 Arduino
Topic: ESP32-C3 supermini serial port problem
Replies: 7
Views: 17770

Re: ESP32-C3 supermini serial port problem

I also had issues with upload (Arduino IDE). It would take sometimes 5-6 consequent tries and still not uploading.
Found the solution, which is weird - immediately after pressing upload, press "boot" and hold, the press "reset" and release it, then release "boot". Works almost 100% for me. It's ...

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