Board Map

Wiring

  • You will need a USB-TTL-dat adapter bridge board or cable, to interface or program ESP32 via the serial interface

To communicate with ESP32 normally, connect (working mode):

  • TXD->RXD, RXD->TXD, +5V=+5V, GND=GND
  • remove IO0-GND jumper, IO0 LED should be off

To program ESP32 (flashing mode):

  • Connect the same serial interface
  • Put IO0-GND jumper ON, IO0 LED should be ON
  • press reset button to enter into flash mode
  • Upload arduino demo code

Code

  • original library DMD32 - https://github.com/Qudor-Engineer/DMD32
  • the code has not maintained for a long while, please use old version of arduino ESP32, please refer to the video below
  • https://github.com/Edragon/Arduino-ESP32
  • please use the standard code in folder - Arduino-ESP32/libraries /DMD32-main/

Demo Early Test

use guide - https://www.youtube.com/shorts/mtdM9uB3fyo

correct test: https://twitter.com/electro_phoenix/status/1434776186354241536

test in error: https://twitter.com/electro_phoenix/status/1427971402561327106

demo video

  • https://t.me/electrodragon3/187
  • https://t.me/electrodragon3/196

ref