Buttons

Additional to the UDP messages, and OSC messages, the Start, Stop and Resume action can also be given with buttons.

1. GPIO

The mapping is as following:
  • GPIO2 -> Start action [Button <START>]
  • GPIO3 -> Stop action  [Button <STOP>]
  • GPIO6 -> Resume action  [Button <RESUME>]
The GPIO pins are active low (connecting the other side of the button to ground). See also here.

2. MCP23017

The mapping for the buttons is as following:
  • GPA5 -> Button <START>
  • GPA6 -> Button <STOP>
  • GPA7 -> Button <RESUME>
The GPA pins are active low (connecting the other side of the button to ground).
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