Grove - 0.54" Red Quad Alphanumeric Display

This 0.54" display has four bright red 14-segment characters, allowing you to present numeric and alphanumeric information. Powered by the TM1637 driver, it requires only two I/O pins for control (one for data and one for the clock), freeing up your microcontroller for other tasks.

This makes it a great choice for resource-constrained projects where you need to maximise pin availability. It is ideal for many projects, from counters and clocks to more complex systems requiring a clear readout.

With the Grove connector, integrating the module into your project is straightforward and hassle-free, allowing plug-and-play connectivity with various Grove-compatible boards such as Arduino (With a Grove - Base Shield) or Raspberry Pi (Only with the Grove-Base HAT). Its small size and low power consumption make it perfect for portable and battery-powered devices.

Features

• Displays all letters and numbers
• Ultra-high brightness: 30mcd
• Grove I2C, only takes two IO pins
• Onboard drivers, easy to use
• Cathode display
• Product Number: Seeed 104020133

Specifications

Supply Voltage	3.3V / 5V
Operating Ambient Temperature	-30°C to 85°C
LED Display	JM-S05442ASR-001
LED Controller Driver	HT16K33
LED Colour	Red
Brightness	30mcd
LED Height	0.54"
LED Segment	14
Size	40 x 60mm
Output Interface	I2C
I2C Address (Selectable)	0x71 (Default)

Resources

• Product Wiki
• Schematic
• LED Module Datasheet
• HT16K33 Datasheet
• MPS MP2155 Datasheet
• Github

Pinout

Package Contents

• 1x Grove - 0.54" Red Quad Alphanumeric Display