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:



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!

 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






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