RoySalisbury
New Member
- Joined
- Apr 24, 2022
- Messages
- 136
there's a small buck converter under the ESP32
Why the buck converter? You should be able to power the ESP32 directly using the 5v from the BMS TTL lines. The pins on most ESP32 boards (RX/TX) are 5v tolerant.
So just a simple 4 wire connection just like the bluetooth or UART module that they sell.
ESP32 + RS232 TTL serial communication - Using Arduino / Programming Questions - Arduino Forum