Build Smart Assistant with Wit.ai to Manage IoT Device

Inspiration

This app is inspired by some personal virtual assistant app. As we know, now there's a lot of personal virtual assistant app like Siri, Alexa, Google Assistant, etc who can help us to do many things. We can give command using voice/text and the assistant will give the feedback with information/action.

What it does

In this project we gonna build a virtual personal assistant who can control our IoT Device to Watering the plants in the front garden. We will combine a few technology such as NLP, IoT, SpeechAPI, ETC.

How I built it

I use several components, in general, there are 2 components

Hardware

ESP8266 (Microcontroller)
DHT 22 (Humidity and temperature sensors)
Relay module (Starts / Stops the pump) ### Software
Typescript
Wit.ai
NodeJS
MQTT
Docker
MongoDB
Boostrap 4 ## Challenges I ran into

There are several problems that I encountered when starting to create this project,

How to train the NLP model with wit.ai
How to create a fade-in animation when the data is received by the frontend without JQuery
How to communicate between IoT Devices with API Server
How to make IoT devices Receive and execute command via MQTT

Accomplishments that I'm proud of

Train Indonesian NLP models with wit.ai
Make IoT devices able to perform several commands such as turning on the pump. ## What I learned
Use the SpeechAPI API in a modern web browser
How the asynchronous system works with MQTT