Why Isn't the CM4 Able to Pull the ESP32's RX Pin Down to 0V?
I kind of have an issue somewhere and I am honestly quite stumped. I designed a board using a Raspberry CM4 and an ESP32S3. The ESP32S3 has USB-PD and is powering the CM4 through it. The ESP32 board has a CP2104 USB/UART-Bridge. Both the CP2104 and Raspberry are connected to the ESP32's UART0.
