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esp32-flipdot-controller

Directly controls a Hanover Displays Ltd. 7020-20-01 dotboard from an R014B-model 20x14 flipdot display.

Image of the FDC board

See the associated blog post on damow.net!

Pinout

GPIO numbers refer to the ESP32 GPIO pins. Pin numbers refer to the dotboard's 14-pin flex connector.

  • GPIO 21 - Enable Display (Pin 2)
  • GPIO 18 - Column Advance (Pin 7)
  • GPIO 19 - Reset (Pin 8)
  • GPIO 17 - Set/Unset (Pin 9)
  • GPIO 5 - Row Advance (Pin 10)

In addition, GPIO 4 controls the coil drive on Pin 12 via a FET/BJT.

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Directly controls a Hanover Displays Ltd. 7020-20-01 dotboard from an R014B-model 20x14 flipdot display.

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