ESP-Wroom-32 + LED Display not working

GeorgeFlorian1
Posts: 160
Joined: Thu Jan 31, 2019 2:32 pm

ESP-Wroom-32 + LED Display not working

Postby GeorgeFlorian1 » Wed Apr 03, 2019 2:38 pm

Hello !

For the past few days I've been trying to make the ESP and the LED Display work together but with no luck.

I've used a ESP-Wroom-32 DEVIKITV1: https://i.postimg.cc/mg8nNsDD/20190403-121636.jpg
I'm using a 64x32 SMD 2727 P5 LED Display.
I've used this library: https://github.com/NeoCat/ESP32-P3RGB64x32MatrixPanel

This is the schematic of the board: https://i.postimg.cc/PxXHWhh6/Schematic ... 160858.png
VCC = 5V;

These are the specs of my power supply: https://i.postimg.cc/prt2vnW7/20190401-145102.jpg

I tried uploading the example codes from the aforementioned library but I noticed that I couldn't upload any code to the ESP32, because the BOOT button seemed like it did't work, so I took ESP off the board and uploaded the code then put it back in and noticed a bizarre behavior:

If the ESP32 is half-way inside (like this), the screen is white if I insert it all the way it get's red.

If I hit reset on the ESP, the display will be off, and the Serial Monitor will output:

Code: Select all

rst:0x10 (RTCWDT_RTC_RESET),boot:0x33 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371 
ets Jun  8 2016 00:22:57
repeating itself without stopping.

Since then the ESP32 is not responding. I've ordered 2 more modules.

What do you think the problems were ? I think it should've worked, yet it didn't and it may have burned the ESP.
Since I will try this again when the new ESP arrives, I don't want to burn it right away.

Thank you !

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