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Danger: high voltage for ESP32 and others below 5V #17

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rtek1000 opened this issue Mar 9, 2024 · 1 comment

rtek1000 commented Mar 9, 2024 •

edited

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The DMG80480Y070_02NN display is releasing 5V at output TX2.

But Datasheet says:

Output Voltage (TXD): 3.2 Typ.

DMG80480Y070_02NNNRDataSheet.pdf

Author

rtek1000 commented Mar 10, 2024

I used a resistive divider.

 TX (DWIN)
  |
  |
 [ ] 1k
  |
  |
  o------ RX (ESP32/ESP8266)
  |
  |
 [ ] 2k2
  |
  |
 GND

rtek1000 mentioned this issue

Added beep order sending using CRC #16

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