Published September 9, 2022 © LGPL

IoT-Distance-Meter

Real-time data transfer using WebSocket.

AdvancedFull instructions provided6 hours160

Things used in this project

Hardware components

Espressif ESP8266 ESP-12E

You can use any microcontroller.

Ultrasonic Sensor - HC-SR04 (Generic)

Breadboard (generic)

Software apps and online services

PlatformIO IDE

Arduino IDE

Microsoft VS Code

Hand tools and fabrication machines

10 Pc. Jumper Wire Kit, 5 cm Long

Story

This project will help you to understand the basics of WebSocket, how it works and how we can use socket programming for esp8266 or any other microcontrollers.

For this project, I used my own custom node server hosted on Heroku. I made a simple UI with the help of HTML, CSS, and JavaScript. Also, I am using Socket.io a javascript library for server-client connections. For esp its acts as a server that sent the data coming from an ultrasonic sensor to these "test-code-0001.herokuapp.com" addresses.

You may also run the socket server in your local machine(laptop, desktop) with proper internet ( LAN ).

For Windows: use ipconfig command to grab the local IP address.

For Linux : use ifconfig command.

Custom Node Server Repo: PSR0001/Test-Heroku-Server: A Socket makes server and device communication easy. A server needs a socket.io library to be installed. (github.com)