add diagram

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akasaka 2023-05-19 22:07:38 +09:00
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commit d474806300
3 changed files with 7 additions and 1 deletions

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Controls the VFD display of WACCA cabinet from an Arduino.
[example video](https://twitter.com/akasaka_spk/status/1659505635078311936)
## Schematic
(sorry, no picture)
![schematic](sch/schematic.png)
Rx,Tx of Arduino Pro Micro -> MAX232 -> Tx,Rx of VFD display (COM2 cable on WACCA cabinet)
Pin 2 of Arduino -> Coin selector (N-O contact)
Gnd of Arduino -> Coin selector (COM contact)
For other connections around MAX232 see tutorials online such as the one in [DIYODE Magazine](https://diyodemag.com/education/the_classroom_rs232_the_max232_ic_arduino_uno).
For RS232 pinout see e.g. [PinoutGuide](https://pinoutguide.com/SerialPorts/Serial9_pinout.shtml)

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