ESP Diagnostic Tool

Abstract

1. Introduction

This is a small set of diagnostics and debugging tools for the ESP8266. It's meant to help solve problems around Wifi and I2C.

The utility includes Wifi and I2C scanners and can report basic information about the board you're using.

This shows information about the ESP SDK and Arduino core that the utility was built with as well as information about the CPU it's running on.

2. Objective

SImple diagnostics for ESP8266 and ESP32 devices

This project demonstrates how C++, ESP8266, ESP32 can be applied to a real-world Internet of Things (IoT) problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Arduino IDE / PlatformIO or a C++ compiler (g++)
• Target board (e.g. Arduino, ESP32) where applicable
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/romkey/ESP-Diagnostic-Tool.git
cd ESP-Diagnostic-Tool

1. Show ESP information
2. Enter wifi credentials
3. Connect to wifi network
4. Current wifi info
5. Scan wifi networks
6. Scan I2C devices
7. Clone the repository
8. If the board you want to run on isn't currently in platformio.ini, add it.

Hello World
1. Show ESP information
2. Enter wifi credentials
3. Connect to wifi network
4. Current wifi info
5. Scan wifi networks
6. Scan I2C devices
0. Restart

git clone git@github.com:romkey/ESP-Diagnostic-Tool.git

platformio run -e YOUR_BOARD_ID -t upload

platformio device monitor

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add a mobile dashboard using Blynk or Firebase
• Store readings in a cloud database for history charts
• Add alerts via SMS / Telegram when thresholds are crossed

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which microcontroller / board and sensors are used and why?
2. How does the device send data (Wi-Fi, MQTT, HTTP, Bluetooth)?
3. Where is the sensor data stored and visualised?
4. How is power consumption managed?
5. How would you secure the device and its communication?

9. Source Code & License

This project is developed by romkey and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.