Adafruit
Yellow 7-segment clock display - 1.2 digit height
A bright yellow 4-digit 7-segment clock display with a large 1.2" digit height — perfect for clocks, timers, and counters. Each segment is ultra-bright at 36...
A bright yellow 4-digit 7-segment clock display with a large 1.2" digit height — perfect for clocks, timers, and counters. Each segment is ultra-bright at 36mcd and constructed from two LEDs in series for even colour distribution.
This is a raw multiplexed, common-cathode display. You can drive the 8 anodes (7 segments + decimal point) at ~15mA each using a 74HC595 shift register or 8 microcontroller pins, and sink the cathodes (~120mA max per digit) with NPN transistors or a TPIC6B595.
Key Features
- 1.2" Digit Height – Large, easy-to-read digits
- 4 Digits + Colon – Ideal for clock and timer displays
- Ultra Bright – 36mcd per segment with even LED colouring
- Common Cathode, Multiplexed – Standard driving configuration
- Degree Dot – Top-right dot useful as a degree symbol
- Dual Colon Dots – Two sets for time-based displays
Ideal For
- Clocks and timers
- Score displays and counters
- Temperature readouts
- Custom instrumentation panels
Package Contents
- 1× Yellow 4-digit 7-segment clock display (1.2" digit height)
Jargon buster
Plain-language definitions for the technical terms used above.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- LED driver
- An LED driver is a control chip or circuit that supplies and switches power to LEDs. For a display board, it reduces the number of microcontroller pins needed and handles tasks like lighting the right segments and adjusting brightness.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
Find this product in
Displays & Screens
Related Tutorials
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