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Robert 2023-03-13 15:21:32 +01:00
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@ -24,10 +24,12 @@ Some pins do not allow to configure Pull up resistors or work only as output. Do
![The ESP32 of that shape with Pins connected](doc/µc.jpg)
We used Mouse devices which where re-soldered to use the 4 USB wires as 'short to GND' to work as controllers.
We also did re-solder some of the existing capacitors of the USB-logic board and put them in parallel to the
switch to suppress electric bouncing of the switch signal.
One way of wiring everything up (you can vary for geometry reasons) can be seen here.
We respected the types of PINs and their capability. i.e. all switch pins must support
pull up resistors (configurable property of ESP32). The buzzer sound pin must be supported by
the PWM generator.
pull up resistors (configurable property of ESP32) and work as digital input.
The buzzer sound pin must be supported by the PWM generator. (Not yet used by the code)
![Layout](doc/Verdrahtung_Steckplatine.png)