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GeavisionReverse

Reverse engineering of some Geavision hardware from Paderborn's Parkleitsystem

Display at 38C3

Items:

  • LCD_PCB: The small board which sits behind every dual-character panel
  • Driver_PCB: One module per sign, denoted as Treiber-Modul ("Driver module") in the original schematics

Displays

GV33 2x1 Modul 38 Segmente (aus das Box mit 4 Displays) GV33 2x1 Modul 38 Segmente

Brochure

Protokoll

Schatz es ist ein Schieberegister!

SignalDump

Stecker Belegung

GV33

Pin Value
1 MOSI
2 +5V
3 +8V
4 GND
5 RESET / OUT EN (active low)
6 64 Hz
7 LATCH
8 CLK
9 MISO