Open samerjawadi opened 3 months ago
Yup i saw it, i changed the config to use the usart3, and i needed to levelshift the Rx line from 5v to 3v3 to be compatible with the esp32
but i needed to know why the usart2 tx line is noisy thank you.
Usart3 is not 5v, it's 5v tolerant. So it will work fine with 3v3. Not sure if I misunderstood you.
Variant
USART
Control type
FOC
Control mode
Voltage
Description
Hello, I am using the ESP32 to control a hoverboard with UART communication. I am using USART 2 because it supports 3.3V. I have a problem where the ESP32 sends data out, and the motor is controlled perfectly, but I can't receive anything from the hoverboard.
After further investigation, I detected that the Tx line (hoverboard side) is very noisy. Has anyone faced this problem before, and how can I correct it?
The yellow signal is the data out from the ESP32, and the blue signal is the data in to the ESP32 (which is very noisy).