Did you ever struggle with an ESP32 board of yours, wishing you had exposed that UART, or seriously lacking the JTAG port access? If so, you should seriously check out [0xjmux]’s ESP-PROG-Adapter ...
Fig. 2 Connect USB cable to the Computer. Fig. 2 Connect the other end of USB cable to ESP Prog board, use wires to connect JTAG interface. Fig. 3 JTAG pins on ESP ...