April 9, 2025

April 9, 2025

EXPERT

EXPERT

Display Text Messages on a IC1632 Screen

An expert level tutorial to display custom text messages on an LED matrix display via Bluetooth using BluetooIno and an HC-05 module.

Display with commands
Display with commands
Display with commands

Introduction

Displaying text on an LED matrix is one of the most rewarding Arduino projects for beginners. It not only introduces you to working with displays and external libraries but also demonstrates how wireless communication can bring static hardware to life. This project is ideal for beginners because it combines simple wiring with visible, customizable results — all made easier through BluetooIno’s Terminal Controller.

How it works

In this project, you’ll use your phone to launch BluetooIno and connect to your HC-05 module. From there, you’ll select the Terminal Controller. Any text you type into the app gets sent over Bluetooth to the HC-05 module, which the Arduino reads through its serial interface. The Arduino then takes that string and forwards it to the IC1632-based LED matrix display, showing your message instantly. For example, typing "HELLO!" in the app sends the string via Bluetooth, and the display will scroll or flash the message according to your programmed behavior.

Wiring the project

1.Connect the HC-05 module’s TX pin to Arduino RX (pin 0) and RX pin to Arduino TX (pin 1).

2.Connect the HC-05’s VCC and GND to the Arduino’s 5V and GND.

3.Wire the IC1632 display’s CS, CLK, and DATA pins to Arduino pins 10, 11, and 12, or according to your library’s setup.

4.Connect the display’s VCC and GND to the Arduino’s 5V and GND or an external 5V power source for stability.

5.Ensure all connections are firm, and double-check pin configurations against your library’s documentation.

Before uploading the code, make sure you’ve installed a compatible IC1632 display library (like LedControl or similar) via the Arduino IDE Library Manager.

Once wired, upload a sketch that reads serial input and forwards it to the display. You can customize whether the text scrolls, blinks, or updates line-by-line depending on your library and code preferences.

Using a small stand or case for the LED matrix helps keep it stable during testing and makes your finished project look cleaner and more professional.

Conclusion

This project is an excellent way to get hands-on experience with Arduino, Bluetooth modules, and motor control in a short time. BluetooIno makes the whole process smooth, letting you customize your controls and quickly connect to your device without complicated setups. Whether you’re a beginner or just want a quick weekend build, this Bluetooth car project delivers fast, satisfying results. Download BluetooIno today and take your projects wireless in minutes.

Download for free

Download for free

Download for free

Join 50,000+
makers worldwide

Join 50,000+
makers worldwide

Join 50,000+
makers worldwide

Control your Arduino wirelessly with confidence. Free, powerful, and ready when you are.

Control your Arduino wirelessly with confidence. Free, powerful, and ready when you are.

Control your Arduino wirelessly with confidence. Free, powerful, and ready when you are.

Bluetooino main screen
Bluetooino controllers screen
Bluetooino controllers screen
Bluetooino controllers screen

Create a free website with Framer, the website builder loved by startups, designers and agencies.