All Products
AI Overview
Simple 4-digit 7‑segment displays (raw/multiplexed)
- Color options with common-anode, 16 through-hole pins (great for clocks/counters, but needs multiplexing/driver):
- 4 Digit 7 Segment Display - Red ($5.30)
- 4 Digit 7 Segment Display - Green ($5.30)
- 4 Digit 7 Segment Display - Yellow ($5.30)
- 4 Digit 7 Segment Display - Blue ($6.60)
- 4 Digit 7 Segment Display - White ($6.60)
- Clock-style 4-digit displays with colon and 0.56" digits:
- Bigger digits version (1.2"): Red 7-segment clock display - 1.2 digit height ($17.45)
Easiest wiring (built-in driver/backpack)
- I2C backpack (reduces pin usage; simplest for Arduino/Raspberry Pi/etc.):
- Adafruit 0.56 4-Digit 7-Segment Display w/I2C Backpack - Red ($20.00)
- Adafruit 0.56 4-Digit 7-Segment Display w/I2C Backpack - Yellow ($21.80)
- Adafruit 0.56 4-Digit 7-Segment Display w/I2C Backpack - Blue ($25.90)
- Assembled Adafruit 0.56" 4-Digit 7-Segment Display ($26.75)
- Bright green pre-assembled option: Adafruit 0.56in 4-Digit 7-Segment Display Backpack - Green ($34.30)
- Serial/SPI/I²C controllable (onboard ATmega328; very flexible):
Microcontroller-specific
- For BBC micro:bit (purpose-built 4-digit 7-seg): 7-segment for micro:bit by Monk Makes ($27.40)
- Arduino shield with 4-digit common-cathode 0.56" display + 5 buttons, I2C interface: 7 Segment LED Keypad Shield For Arduino ($13.55)
Single-digit / custom PCB
- Compact SMD, common anode, 0.3" digit height (for reflow/PCB builds): SMD Red 7-Segment LED Display - Common Anode ($3.85)
Drivers / MAX7219 options
- MAX7219 IC (to drive multiplexed digits/matrices): MAX7219CNG LED Matrix/Digit Display Driver [MAX7219] ($29.30)
- MAX7219-based 8-digit display module: MAX7219 LED Dot Matrix 8 Digit Digital Tube Display Control Module For Arduino ($12.65)
Other 4-digit modules
- Basic 4-digit modules (SparkFun):
- 7-Segment Display - 4-Digit (Red) ($6.90)
- 7-Segment Display - 4-Digit (Blue) ($12.10)
What kind of 7-segment are you after?
Showing 61-80 of 100 products
Mini 3-wire Volt Meter (0 - 99.9VDC)
·
A compact 3-wire voltage meter with a vivid green 3-digit 7-segment display. Reads 0–99.9VDC with 0.1V precision, making it perfect for monitoring battery levels, power supplies, and electronic projects. Mounting tabs allow easy attachment to enclosures or panels. The 3-wire design separates pow...
Small 1.2 8x8 Bright Square LED Matrix + Backpack - White
·
What's better than a single LED? Lots of LEDs! Matrices like these are 'multiplexed' - so to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of spa...
Small 1.2 8x8 Bright Square LED Matrix + Backpack - Green
·
What's better than a single LED? Lots of LEDs! Matrices like these are 'multiplexed' - so to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of ...
Small 1.2 8x8 Bright Square LED Matrix + Backpack - Yellow
·
What's better than a single LED? Lots of LEDs! Matrices like these are 'multiplexed' - so to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of spa...
Small 1.2 8x8 Bright Square LED Matrix + Backpack - Amber
·
What's better than a single LED? Lots of LEDs! Matrices like these are 'multiplexed' - so to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of spa...
Panel Temperature Meter / -30 to +70 °C
·
Put a temperature meter anywhere with this very handy display. This panel meter displays the temperature of the attached waterproof 1% thermistor in °C. It does require a DC voltage to run, at 4.5-30VDC. It has reverse polarity protection in case you swap the power leads by accident. To use, sim...
Panel Current Meter - 0 to 9.99A
·
Put a current meter anywhere with this very handy display. This panel meter requires a DC voltage to run, and then has two thick gauge wires to measure current draw. A shunt is already on board so its very easy to hook up! Since current sensors are a little more complex than volt meters, and its...
Panel Volt Meter - 4.5V to 30VDC
·
Put a voltage meter anywhere with this very handy display. This panel meter simply connects to whatever DC supply you are trying to track, easy to wire up!Simply connect the red wire to the positive supply, and black to negative ground. The display has a microcontroller that will read the voltage...
Mini 2-wire Volt Meter (3.2 - 30 VDC)
·
Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure. This is the 2-wire version of the volt meter, two wires are used to power it and measure at the same tim...
![MAX7219CNG LED Matrix/Digit Display Driver [MAX7219]](/rails/active_storage/representations/redirect/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVGkCNKtJIghwdXIGOwBUSSIMYmxvYl9pZAY7AEY=--e4e00bfe171e6ed5937518c5312c20c9ade232c4/BAh7BkkiC19yYWlscwY6BkVUewdJIglkYXRhBjsAVHsIOgtmb3JtYXQ6CXdlYnA6EnJlc2l6ZV90b19maXRbB2kCkAFpApABOgpzYXZlcnsHOgxxdWFsaXR5aVc6CnN0cmlwVEkiCHB1cgY7AFRJIg52YXJpYXRpb24GOwBG--f55be79df1f1b025f86d676a642df617e240cfbc/image_3dc5ad6d-7c6c-4a13-9f61-f704bcf9181a.jpg)
MAX7219CNG LED Matrix/Digit Display Driver [MAX7219]
·
When you need some help driving a lot of LEDs, the MAX7219 is the best friend you could hope for. Many of us know that if you want to control a lot of LEDs, you'll want to use multiplexing, a technique that lets you control 64 LEDs (say) with only 16 pins (8x8). The annoying thing about 'plexing ...
SparkFun Large Digit Driver
The SparkFun Large Digit Driver is a chainable controller board that solders directly to the back of 6.5" 7-segment LED displays. It uses the TPIC6C596 shift register IC to drive individual segments, making it easy to build multi-digit scoreboards, lap timers, and large-format numerical displays ...
Shift Register 8-Bit - SN74HC595
The SN74HC595N is a simple 8-bit shift register IC. Simply put, this shift register is a device that allows additional inputs or outputs to be added to a microcontroller by converting data between parallel and serial formats. Your chosen microprocessor is able to communicate with the The SN74HC5...
Coin Acceptor - Programmable (6 coin types)
Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take up to 6 different kinds of coin! Whether you’re building your own arcade cabinet or just charging admission to your house, this programmable coin acceptor makes it easy to monetize your...
Coin Acceptor - Programmable (3 coin types)
Are you trying to make a quick dime from electronics? Why limit yourself to dimes? This coin acceptor will take three different kinds of coin! Whether you’re building your own arcade cabinet or just charging admission to your house, this programmable coin acceptor makes it easy to monetize ...
SparkFun Binary Blaster Kit
Binary Blaster is a game designed to help teach what binary numbers are and how to convert from decimal (and hexadecimal) to binary quickly. The game displays a value on the dual 7-segment displays, and the player is challenged to press the buttons in a way that represents the binary equivalen...
Digital LED Voltmeter
This Digital LED Voltmeter measures the voltage at a particular point of the system it has been hooked up to and then provides a readout on its three 7-segment LEDs. This voltmeter is able to provide a readout of voltages from 2.5VDC to 30VDC within a 1% accuracy. Features: Range: 2.5VDC — 30V...
3-Wire LED Module 8 Digital (Arduino Compatible)
An 8-digit serial LED display module that uses an SPI (3-wire) interface, requiring only three I/O pins from your Arduino or microcontroller. Multiple modules can be daisy-chained together for longer displays. The flicker-free design ensures a clean, stable readout. Key Features 8-Digit Displa...
Dual Alphanumeric Display - Green 0.54 Digit Height - Pack of 2
·
These 14-segment alphanumeric LED displays can show the full alphabet, numbers, and select symbols in a bright pure green hue. With a 0.54" digit height and 14 mcd brightness, they're readable from up to 7 metres (23 feet) away — perfect for clocks, counters, status readouts, and scrolling text p...
Dual Alphanumeric Display - White 0.54 Digit Height - Pack of 2
·
Add clear, bright alphanumeric readouts to your next project with this pair of white 14-segment LED displays. Each 0.54" digit can show any letter, number, or symbol — perfect for building clocks, scoreboards, custom dashboards, or any application requiring readable text output. These displays a...
Bi-Color (Red/Green) 24-Bar Bargraph w/I2C Backpack Kit
·
A 24-bar bi-colour (red/green) LED bargraph kit with an I²C backpack controller. The backpack handles all LED multiplexing and drive, letting you control 48 LEDs (24 bars × 2 colours) from just two I²C pins. Constant-current drivers ensure bright, consistent colour across all segments with 1/16-s...
