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 ...

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 ...