Wireless Scoreboard Kit with Arduino Uno and HC-12 433 MHz (Full Kit)
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Prices updated: 14 Oct 2026
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About this product
A two-board wireless scoreboard for Team A and Team B. A battery-powered remote with three buttons sends each score over a 433 MHz HC-12 radio link to a second Arduino Uno, which shows the result on a 4-digit display. Each message carries a sequence number so a point is counted only once. Suited to learning UART wireless communication and designing a two-device system.
Specifications
- Controller board
- 2 × Arduino Uno R3
- Radio link
- HC-12, 433 MHz
- Display
- 4-digit display
- Remote inputs
- 3 buttons (Team A, Team B, Reset)
- Recommended age
- 14–16 years
- Level
- Advanced
- Soldering
- Possibly required if HC-12 pin headers are not fitted (adult supervision)
- Estimated build time
- 3 hours
Frequently asked questions
Do I need to solder anything?
Only if the HC-12 module's pin headers are not already fitted. In that case soldering is needed and should be done with adult supervision.
Do I need a computer for this kit?
Yes. A computer with the Arduino IDE is needed to upload the code to both Arduino Uno boards.
