2021年10月14日 · it's a little late, but I've also blown the same USB +5V input diode on a few of my ESP32 Devkits. The diode is only used for reverse polarity protection. It's rated at 100mA …

2018年10月11日 · Powering the ESP32 I had a Buck Converter stepping down from 12V to 5.2V. This voltage was hooked up to the USB pin on the board. I cant understand why this happend …

2021年10月14日 · By putting it in a breadboard and connecting the 3V3 pin to a working ESP32, it powers up (and from what I can tell seems to function correctly) but I can't upload any new …

2020年5月15日 · I've seen boards (not this specific model) with blown USB voltage diodes and assumed it was because of a short to ground before or after the regulator making the diode go …

2022年7月25日 · You most likely have a blown WROOM-32 (the actual Espressif module). You can confirm this by measuring across your 3v3 and ground pins with a meter as it's will have …

2020年4月18日 · Sounds like the issue is in that the ESP32 is entirely dead or doesn't react. - First of all, can you make sure GPIO15 is high? The ROM will not output any messages when …

2019年9月18日 · The reason that your board is showing on the com list is that the USB to serial converter is powered directly with 5V USB power. But the program will never load since your …

2024年10月16日 · I am struggling with ESP32-C3-mini-1 flashing issue. According to datasheet power-up sequence for boot uart flashing looks correct: 1) IO8 - high, IO9 low, IO2 - high (not …

2023年9月27日 · After many tries over a few months, this post got me on track and I got my ESP32S3 dev kit to work. I am using Arduino 2.2.1 on a Linux Min machine. I updated the …

2019年4月2日 · I am experiencing a strange effect when the ESP32 is connected to the PC via USB. My device is receiving data via 433MHz, the receiver is connected to a GPIO with the …