Build Your Own Real-Time PC Monitor With ESP32 & Arduino!

by rishabpp0 in Circuits > Arduino

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Build Your Own Real-Time PC Monitor With ESP32 & Arduino!

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🔥 "Build a Real-Time PC Monitor with ESP32 – Must-Have for Gamers & Creators!" 🔥

Learn how to set up real-time serial communication between your PC and ESP32. This project shows how data flows from your computer to your microcontroller using UART and how to display it effectively.

Supplies

DD.png
CASE.png

LilyGO T-Display S3 AMOLED (ESP32-S3 built-in)

USB-C Cable

Windows PC with Visual Studio (VB.NET)

Arduino IDE (latest version)

Optional: 3D-printed case

Set Up Arduino IDE


Install the ESP32 Board Package:

Go to File → Preferences → Paste this URL in Additional Board Manager URLs:


https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json

Tools → Board Manager → Search and install esp32 by Espressif Systems


Select board:

Tools → Board → ESP32S3 Dev Module or LilyGO T-Display S3 AMOLED

Install Required Libraries

TFT_eSPI LINK-https://github.com/Bodmer/TFT_eSPI


Downloads

SysScope.ino
pins_config.h
rm67162.cpp
rm67162.h
true_color.h

Upload ESP32 Code

VB.NET PC Side Application

Copy the provided VB.NET EXE to any folder.

Run the app.

If COM port is not visible, check Device Manager.

The app will auto-detect the port and send data every second.

Test & Debug

  1. Your ESP32 display should show performance data.
  2. If you send a custom message from the VB app, it shows on the 3rd page.
  3. Use the side button on LilyGO to switch pages (if implemented).

💡 Tips:

  1. You can easily modify the threshold values for alerts.
  2. Customize the layout or theme in the Arduino code.
  3. Add icons for a more attractive display.
  4. If you're only using it locally, no Wi-Fi is needed.