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Change Hobgoblin hello world to touch sensor with wiring diagram #30

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Change Hobgoblin hello world to touch sensor with wiring diagram #30

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7 changes: 5 additions & 2 deletions tutorials/hobgoblin-setup.md
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Expand Up @@ -21,13 +21,16 @@ The [Harp Hobgoblin](https://github.com/harp-tech/device.hobgoblin) is a simple

## Testing the device

![Hobgoblin Touch](../images/hobgoblin-helloworld-touch.png){width=400}
*<small>Hobgoblin wiring diagram for touch sensor</small>*

:::workflow
![Hobgoblin Hello World](~/workflows/hobgoblin-helloworld.bonsai)
:::

- Connect a push button to analog input channel `0` (`GP26`) on the `Hobgoblin`.
- Connect a touch sensor to analog input channel `0` (`GP26`) on the `Hobgoblin`.
- Set the `PortName` property of the [`Hobgoblin`](xref:Harp.Hobgoblin.Device) operator to the communications port of the `Hobgoblin` (e.g. COM7).
- Run the workflow and double-click the output of `AnalogInput0`. The value should change when the push button is pressed.
- Run the workflow and double-click the output of `AnalogInput0`. The value should change when the touch sensor is pressed.

## Installing harp-python

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