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...
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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 (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- 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 single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
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