FT230X:
    https://www.electronics-lab.com/project/usb-to-serial-converter-using-ftdi-ft230x/
    
ESP32
    https://randomnerdtutorials.com/esp32-pinout-reference-gpios/
    https://github.com/espressif/esptool/wiki/ESP32-Boot-Mode-Selection
    https://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card