[Dwin Display] Danger: high voltage for ESP32 and others below 5V

[rtek1000]

Hello,

The DMG80480Y070_02NN display is releasing 5V at output TX2.

But Datasheet says: Output Voltage (TXD): 3.2 Typ.

I have 2 displays and they are the same.   

My ESP32 started to stop receiving data from the display.       

You have to be careful with this equipment without very reliable quality control.

If the software has a lot of BUGS, be suspicious of everything. 

https://github.com/dwinhmi/DWIN_DGUS_HMI/issues/17

[ozcar]

The page of the datasheet you posted there gives no maximum for the TXD high level ("1") output voltage. It also mentions "5V TTL" (or jumper optionally, "RS232", but I don't know why there is then only one set of input and output voltages given).