Tuesday, May 5, 2026

Building a DIY ESP32-Div

I am building a ESP32-DIV to further my collection of Hacking devices.  I am building it on proto boards so I can change it later if needed.  Why not buy the prebuilt models?  For one thing those short cables between the NRF24's and the antennas have a huge loss.  I want them to go directly to the antennas.  For another thing I do not have that kind of money laying around.

Here is my planned layout.  I am using both sides of the board so the sockets are glued in place.



The instructions to upload the firmware are not very clear.  Here are screen captures of what I found and hopefully I got the correct files? This is my setup screen, it is not correct, its missing th boot info.  Look up ARTFOR's instructions on YouTube his instructions work!



This is the instructions with my comments:

This is the text that appeared.  I do not know if it is correct!


After several days of trying to get this to work I concluded the probem is the LCD.  I searched the Internet and discovered that some ILI9341 LCD's are acturally ST7789 powered.  In fact I found an image of my exact same LCD and they had the same problem, it was a ST7789!
NO!  the problem was the instructions see ARTFOR on youtube for the correct instructions.

 Here are three projects that are on my desk.

Here are two documents I am working on
Here is the wiring chart for the ESP32-DIV

Here is the corrected Keyboard schematic:







No comments: