Respeaker Home Automation

Published on 19 May 2022. Written by Dhilan Mandaliya

Probably you all heard about ReSpeaker, it is a hackable open hardware voice interface. It is a development board based on Mediatek MT7688 WiFi module and runs on OpenWrt. You an program it using Arduino, Python, Node.js, Lua and C/C++. ReSpeaker also supports various hardware add-ons like Groove Expansion, Microphone Array, etc... I am one of the early beta user of ReSpeaker.

Here is a Home Automation project we worked using ReSpeaker, Microsoft Cognitive Service Speech API, Api.ai and MQTT, it controls the lights using voice interface. Basically what it does is, record audio using ReSpeaker, convert to text using Microsoft Cognitive Service Speech to Text, process and the text using Api.ai conversational voice interfaces platform, send MQTT messages to turn on/off different lights.

Project Description:

The project has two hardware components, ReSpeaker and Arduino MKR1000 to which two LEDs are connected (these LEDs represents different lights).ReSpeaker recognize the user voice input using Microsoft Cognitive Service Speech API. If a trigger word is detected (configurable), the application turns on the LEDs on the ReSpeaker and then listens for commands. The trigger word I use for this demo is "jarvis", but you can using any word you want.

Software/ online service : Arduino IDE,python, microsoft cogntive services speach, api.ai, MQTT
Arduino MKR1000: Arduino MKR1000 is a powerful board that combines the functionality of the Zero and the Wi-Fi Shield. It is the ideal solution for makers wanting to design IoT projects with minimal previous experience in networking.
Bread Board: A breadboard is a construction base for prototyping of electronics. Originally it was literally a breadboard, a polished piece of wood used for slicing bread. In the 1970s the solderless breadboard (a.k.a. plugboard, a terminal array board) became available and nowadays the term "breadboard" is commonly used to refer to these.
Respeaker: RESPEAKER is an open source modular voice interface to hack things around us rather then a voice assistant that fulfill simple tasks. Respeaker prob=vies you an hand free way in your daily life. The ReSpeaker Core 7688 has 1 microphones, stereo audio output, on-board class-d audio amplifier, on-board ATmega32U4, 12 RGB LEDs and 8 touch sensors.
LED: A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode that emits light when activated.When a suitable current is applied to the leads,electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor. LEDs are typically small (less than 1 mm2) and integrated optical components may be used to shape the radiation pattern

Kit required to develop Respeaker Home Automation:

Technologies you will learn by working on Respeaker Home Automation:

Respeaker Home Automation

Project Description:

Any Questions?

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