# Raspberry Pi GPIO Demo

#### *rasp.MOHIT-sketch*

### Description:

This Skill demonstrates how to interact with the Raspberry Pi GPIO pins using a Mycroft Skill. This Skill shows both reading data from a GPIO port (detecting a button press) and writing data to the port (illuminating an LED).

#### Preparation

[You will need to first install the GPIO libraries for Picroft, and add some additional permissions](https://mycroft.ai/documentation/picroft/#using-the-gpio-pins-on-the-raspberry-pi-3).

#### Generation

The documentation is done using Sphinx, which picks up comments from the code. The following will generate the html docs.

`make docs`

You can then find the generated html in `docs/build/html/index.html`. Open that file in your browser and you should be able to navigate to the docs.

#### Installing from the `makefile`

* Change the Makefile IP address for the RPi installation to the IP address of your RPi.

That is, edit the file `makefile` using your favorite editor like `nano` or `vi`.

The line you will need to change is `scp -r * pi@192.168.205.115:/opt/mycroft/skills/skill-gpio`.

Change this to have the IP address of your RPi.

* Create the folder `/opt/mycroft/skills/skill-gpio` on the RPi for the installer.

You can do this by using the command `mkdir /opt/mycroft/skills/skill-gpio`

* Build the code using the `makefile`. `make install.pi`

#### Testing the `makefile`

`make test.pi`

This will run a test to be sure you have access to the GPIO and will report any errors that are identified.

#### Notes

If the LED blinking is too fast, it will be difficult to get a command to execute because there will be a voice response when the the LED turns off and on. Turn the blinking to a lower frequency to be able to execute commands.

#### Circuit

Please use the below image as a guide to the circuit layout:

![](https://github.com/MycroftAI/picroft_example_skill_gpio/blob/master/IMG_20170706_153744.jpg)

#### Platform:

![Mark I](https://500835181-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LzX1y2oL49APvqHoV5o%2Fuploads%2Fgit-blob-20518efa3a75671db56c323c5962b4108102367b%2Fmark-1-icon.png?alt=media) ![Picroft](https://500835181-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LzX1y2oL49APvqHoV5o%2Fuploads%2Fgit-blob-b7dc7493983981386b73158927c1ddf91597de7a%2Fpicroft-icon.png?alt=media)

#### Examples:

> Turn LED on.\
> Turn LED off.\
> Blink LED.\
> LED status.

### Installation:

{% hint style="warning" %}
This skill is not aproved by Mycroft skill tester.
{% endhint %}

{% tabs %}
{% tab title="Install by mycroft-msm" %}
`mycroft-msm install https://github.com/MOHIT-sketch/rasp`
{% endtab %}
{% endtabs %}

### Summary:

**Github:** <https://github.com/MOHIT-sketch/rasp>\
**Owner:** [@MOHIT-sketch](https://github.com/MOHIT-sketch)\
**Created:** 2019 Aug 05 09:10:55 UTC **Last updated:** 2019 Aug 05 09:21:02 UTC\
**License:** Apache License 2.0

**Categories:** \[ IoT ]\
**Tags:** #IoT #GPIO #RPi


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