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This project covers controlling Raspberry Pi GPIO using an Amazon Echo.
It uses Fauxmo which enables the RPi to pretend as a WeMo device. Fauxmo is a Python 3 module that emulates Belkin WeMo devices for use with the Amazon Echo.

To get a confirmation of change in state for GPIO you either look at the terminal in which you will run the code or use this instructable to connect GPIO ( for this project 16-26) to an LED for visual check.

Inspired by Home Automation With Amazon Echo Voice Control by FabricateIO

Step 1: Setup and Test

You will need an Amazon Echo, Raspberry Pi ( I am using a RPi 3 Model B) and copy of source code.

  1. Download a copy of the source code in your RPi 'home' (~/)
    git clone https://github.com/kanesurendra/echo-pi.git
  2. Move to source directory:
    cd echo-pi
  3. Execute the script using:
    python gpio_control.py
  4. Say to your Echo : "Alexa, discover devices"
    Each GPIO is registered as a independent device and can be controlled separately.
  5. To change a state of GPIO say : "Alexa, turn on gpio21" or "Alexa, turn off gpio21

Step 2: Summarizing ...

Although this allows you to control individual GPIO's, by experimentation found that it allows only about 9-10 devices (GPIO's) to be discovered. The Echo discovery ends in 20 secs; before the script can respond to discovery if all 26 gpio pins are included.

Hence in the above source code only the gpio16 - gpio26 are added as devices and can be controlled.
Looking for a fix or alternative ....

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More by surendrakane:Control Raspberry Pi GPIO Using Amazon Echo (Fauxmo) Control Raspberry Pi GPIO Using Amazon Echo (ngrok) Control LED Using Raspberry Pi GPIO 
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