Well why not have better resolution
I’ve just added support for HD version of this display (880x528) to the ESPhome, I hope it will be merged soon and someone can test it properly.
Hi! Thank you for adding support for 880x528 displays. Do you have any updates on this topic? Are 3 color displays also supported with e-Paper esp32 Driver Board?
Anyone has problems using 7.50inV2 display and Waveshare E-Paper ESP32 Driver Board?
I managed to plug everything in and it works, only the display has contrast issues.
During the update the outlines of the writings are sharp and the blacks are full, immediately after they become grainy. As if there wasn’t enough power to properly update the display.
I have already tried to change several USB cables and different power supplies, but with no differences.
Here an example:
UPDATE: a second Waveshare ESP32 Driver Board arrived today, attached to the same 7.5inch V2 display and almost same issue.
So these Driver Boards sold directly by Waveshare as compatible with its 7.5inch displays are actually not. Maybe connecting them with their GPIO → FLAT CABLE adapter they work but you lose the sense of having a card with the flat connector already.
I have exactly the same behavior with my 7.50in Waveshare screen connected to HAT for Raspberry Pi connected to a ESP32 board.
Did you find a workaround/fix ?
Waveshare support ask ME to change 1 capacitor and 1 resistor on the ESP32 Dev Board… maybe is the solution, BUT it’s not the right one to me.
I don’t want to fix their board problems.
It’s an old discussion, but I had the same problem: After many days of perfect function, the contrast on my 7.5 V2 display (with ESP32 driver board) started to get weaker and weaker. I had tried unsuccessfully to remedy this condition by changing the voltage. In the end, I found that the contrast immediately got better when I deleted the displaying of horizontal and vertical dividing lines in my script. It seems to me there is a bug …