How are you powering the panel? You shouldn’t be powering from USB. That part looks like a diode which is meant to prevent external power from flowing to the computer. You likely can still run your ESP32 from external power if your shield supports it. You should contact the person that designed your hardware for support
I am powering it from external power supply connected to the esp32’s micro usb.
I will contact the designer of the shield.
Louis, thank you so much!
I didn’t test it time enough but i lowered the brightness to 15% and so far so good!
For anyone coming across this post in the future the following are the ESP32 “strapping pins”
- GPIO 0
- GPIO 2
- GPIO 4
- GPIO 5 (must be HIGH during boot)
- GPIO 12 (must be LOW during boot)
- GPIO 15 (must be HIGH during boot)
These are used to put the ESP32 into bootloader or flashing mode.
Source: ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials
Typically from my (relatively limited) experience with the ESP32 this is not much of a problem with most devices but seams to be particularly sensitive to RGB matrices for obvious reasons as these pins are being constantly switch in rapid succession in order to drive the panel.
thank you matbks
thank you louis
I saw this article and succeeded in 32*32, 2 panel 8SCAN.
{0,32,32},
{0,96,32},
{8,0,32},
{8,64,32},
{0,0,0},
The rest is the same as the shared files of matbks.
please, show your setting.
i have same problem.