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Now that you have the Assistant running on the device, it is time to extend it
with Device Actions. Device Actions allow you to control your device via voice.
For this example, you will be using a Built-in Device Action
to turn a light on and off.
Follow these instructions to install an LED on the Raspberry Pi 3 Model B. In a
later step, you will modify the sample code to light the LED by voice command.
Hardware requirements
Before you begin this example, you'll need the following components:
A breadboard
An LED
A series resistor
Two jumper wires, both with a male and female connector
The electrical resistance of the resistor should be tied to the specific LED.
To find the correct value, you can use an online calculator (or purchase a kit).
Connect the components
Connect GPIO output pin BCM25
to one side of a series resistor. Note that this is physical pin 22 on the
Raspberry Pi 3.
Connect the other side of the resistor to the anode side (longer lead)
of the LED.
Connect the cathode side (shorter lead) of the LED to ground.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18 UTC."],[[["This guide demonstrates how to extend Google Assistant with Device Actions to control a device, like an LED, using voice commands."],["You will need a breadboard, LED, resistor, and jumper wires to connect to specific GPIO pins on a Raspberry Pi."],["Even without the physical components, you can still set up the Device Action and observe the output in the terminal."],["This is the first step; the next involves registering device traits to define its capabilities."]]],[]]
