ESP32-Raspberry-Pi-2W-Remote-Bot-Control

This project provides a simple web interface to control motor-driven robot connected to a Raspberry Pi with custom 3D printed model. The communication between the web server and the motor driver happens through UART using Python.

The interface is built using Flask, and you can control the bot through buttons on a webpage. The project is intended for local network control.

Hardware Used

• Raspberry Pi (Python Flask Web Server)

• ESP32 (Motor Driver Control using UART)

• L298N Motor Driver

• Web UI (Forward, Back, Left, Right controls)

The project works inside your local Wi-Fi network and can be accessed from:

• Mobile/PC phone browser

• SSH terminal (for starting Flask server)

Software Dependencies

Install required packages:

sudo apt update
sudo apt install python3 python3-pip
pip3 install -r requirements.txt

Enable ssh for Raspberry Pi

sudo raspi-config

Interface Options -> I1 SSH -> Enable

Commaands to check the GPIO pins & board details

pintest
ps aux | grep python
pinout

Commuite to your project folder Create a Virtual environment for the folder name venv

• keeps the Python project library isolated
• Avoid messing with systems built in python

python3 -m venv venv

Switch terminal to use virtual environment (while running the project)

source venv/bin/activate

Program Esp32 with the motor driver create directory and run the code in Pi

nano interface_code.py
python interface_code.py
(venv) Pi@raspi:~/esp_bot $ python robot_server.py 
 * Serving Flask app 'interface_code'
 * Debug mode: off
WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:8080
 * Running on http://192.1x8.0.1x0:8080

Note

• This project is ment for local useage only.
• No tunneling was used
• Learning Flask + UART + Raspberry Pi basics