Project Hub /Test & Measurement Instrumentation/Multimeters, Voltmeters & Ammeters/Wearable Watch-Style FM Radio with Touchscreen

Intermediate

INDUSBOARD

Project Specific

3 – 6 Hours

Partial Kit

Wearable Watch-Style FM Radio with Touchscreen

This project details the design and assembly of a compact, watch-style wearable FM radio featuring a 3cm round touchscreen display and an RDA5807M radio module.

Originally published on ElectronicsForU

View original tutorial

Parts You'll Need

This project is sourced from another site, not written by us — this list is our best match of their components against what we stock, not a verified bill of materials. Always check the original blog (linked above) for the actual parts list before buying.

1200mAh 18650 Li-ion Bat – Reliable 3.7V Power Cell Rs. 129.00
400 Points Mini Solderless Prototype PCB Breadboard High Quality Rs. 89.00
MB102 Adjustable Breadboard Power Supply Module (3.3V & 5V) for Arduino & Raspberry Pi Rs. 139.00
Jumper Wire 10 Pin Male To Male 20cm Rs. 45.00
Jumper Wire 10 Pin Male To Female 20cm Rs. 45.00

Selected: Rs. 0.00

We don't carry yet: Other Dev Board (Indusboard / Maixduino / misc)
TFT / Touch LCD
Microcontroller IC (DIP) / Chip
Radio Receiver / Transmitter (RC)
Header Pins / Terminals / Connectors
earbud

Browse all components

How It Works

The Wearable Watch-Style FM Radio is powered by the IndusBoard Coin V2 microcontroller, which serves as the central processing unit coordinating all hardware modules. Audio tuning is handled by the RDA5807M FM Stereo radio module, which receives broadcast signals through an attached antenna and routes the decoded audio signal directly to the connected audio jack and earbuds. Visual output and user interaction are managed via the 3cm GC9A01 round LCD touch screen paired with the CST816S touch driver IC, allowing users to navigate interface elements and adjust radio parameters through touch gestures. The entire wearable system is powered by a portable 3.7V Li-Po battery, making it a fully self-contained pocket entertainment device. Software-wise, the Arduino IDE environment utilizes specialized libraries including TFT_eSPI for rendering graphics on the round display, CST816S for processing touch inputs, RDA5807M for frequency tuning, and TimeLib for managing timekeeping functions.

Why Build This

Design and prototype ultra-compact wearable consumer electronics with integrated touch interfaces.

Implement I2C and SPI peripheral communication protocols to bridge microcontrollers with specialized audio and display hardware.

Develop custom graphical user interfaces for circular display hardware within resource-constrained embedded systems.

Real-World Application

Portable and wearable personal entertainment devices, emergency pocket radios, and miniature consumer electronics design.

Skills You'll Learn

I2C communication

SPI display interfacing

capacitive touch controller integration

radio frequency module control

battery power management

graphical user interface design

Safety Precautions

Ensure correct polarity when connecting the 3.7V Li-Po battery to prevent damage to the microcontroller and integrated circuits.

Technology Tags

FM RADIO

WEARABLE ELECTRONICS

TOUCHSCREEN

INDUSBOARD COIN V2

GC9A01 LCD

RDA5807M

CST816S

ARDUINO

C++

Frequently Asked Questions

What libraries are required to run the display and radio?

You need the TFT_eSPI library for the round LCD, the CST816S library for the touch controller, the RDA5807M library for the radio module, and the TimeLib library for timekeeping, all managed through the Arduino IDE.

Can I use standard headphones as an antenna?

Yes, the audio jack and attached earbuds double as the antenna for the RDA5807M FM stereo radio module to properly receive broadcast signals.

How do I ensure safety when powering the device?

Always double-check the correct polarity before connecting the 3.7V Li-Po battery to the IndusBoard Coin to prevent permanent damage to the integrated circuits.

Gallery

This page is part of Kitkraft's Project Hub — a curated collection of electronics & robotics projects gathered from the maker community to help students and hobbyists discover and learn to build. Kitkraft does not claim authorship of the original project, and makes no representation as to the accuracy, completeness or safety of third-party source material. The summary and "How It Works" explanation above are AI-generated, rewritten with reference to the original tutorial — not a reproduction of it. Full credit and a direct link to the original source are provided above. If you're the original creator and have a concern about how your work is represented here, please contact us and we'll address it promptly.

Kitkraft Project Hub — curated from the maker community, credited at the source.

PRJ-01231