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2dom / PxMatrix

Adafruit GFX compatible graphics driver for LED matrix panels
BSD 3-Clause "New" or "Revised" License
811 stars 167 forks source link

issues with p2.5 64x64 160mm panels with ICN2038S drivers HUB75E connections #157

Closed Jay-esp closed 4 years ago

Jay-esp commented 4 years ago

Having a couple of issues. Connected to esp32 dev1 doit. Pinout for reference according to supplier. hub75e pins

When setting the driver to anything other than SHIFT I get this, parts are dim, red lines. This is fixed when I power cycle the display without powering down the esp so it must be an initialization issue.

IMG_3645

Now if I change the driver type to SHIFT, I don't have that issue but another one, vertical is offset and for example line 31 appears on line 30 and line 31 is on 33.

IMG_3646

Any idea? Other point, the esp crashes very often and reboots ./home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/queue.c:1446 (xQueueGenericReceive)- assert failed! abort() was called at PC 0x400890ef on core 1

Using esp32 plus rtc module and wifi webserver.

xsrf commented 4 years ago

Guess it's the same issue as with https://github.com/2dom/PxMatrix/issues/101 Using SHIFT should be correct... Can you try with setFastUpdate(false)?

Jay-esp commented 4 years ago

have not worked on this project for some months, will check once I take it on again, I suspect the issue might be that I don't use level shifters and hi-lo logic levels are marginal, I solved some of the issues by reducing the voltage to the lcd panel

Nikitok122 commented 4 years ago

Hi!! I have the same panel, but cant make it to work. The issue is doubling the screen. can u share your code from this example??

Nikitok122 commented 4 years ago

https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/img/text-ghosting.jpg about your problem

Jay-esp commented 4 years ago

Hi, I ended up using other libraries but had similar issues, solved for now by reducing the 5V voltage to the panel a little bit to get the 3.3V signal from the esp in range of proper 0 and 1 detection by the panel, you might want to recheck the wiring first