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Segment displays & matrices

Products: 60
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7-segment display x2 - 10mm red - common cathode

The dual 7-segment display allows the display of two digits and some letters.
5.0 (3)
Index: LCD-06281
Index: LCD-06281
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LED Matrix 16x8 MAX7219 for Raspberry Pi

The cover plate is equipped with two 64 LED matrices' slots. Two LED matrix modules with a total of 128 LEDs and red colour are included. The overlay module is based on the...
Index: OST-18523
Index: OST-18523
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Regular price €8.50 Price €8.50

Eight-segment display x4 - 14mm red - common anode

Quadruple 8-segment display of four digits along with points and some letters.
5.0 (5)
Index: LCD-06449
Index: LCD-06449
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Eight-segment display x1 - 14mm red - common anode

Single 8-segment display of digits with points and some characters.
5.0 (5)
Index: LCD-06438
Index: LCD-06438
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Eight-segment display - 14mm red - common cathode

Single 8-segment display of digits with points and some characters.
5.0 (4)
Index: LCD-06448
Index: LCD-06448
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Eight-segment display x1 - 10mm red - common anode

Single 8-segment display displays digits with points and some characters.
5.0 (1)
Index: LCD-06443
Index: LCD-06443
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4-Digit 7-Segment Display with I2C Digit Clock Unit - Red - M5Stack U146

UNIT-Digi-Clock module with a 7-segment display consisting of 4 digits with dots. The numbers are highlighted in red . The module uses TM1637 as the driver IC and...
4.5 (2)
Index: MSS-21787
Index: MSS-21787
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Regular price €6.90 Price €6.90

Eight-segment display x1 - 14mm green - 8 mcd - common cathode

Single 8-segment display which displays digits with a dot and some characters.
5.0 (3)
Index: LCD-07306
Index: LCD-07306
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Regular price €1.00 Price €1.00

Elastic matrix 16x16 - 256 LED RGB - WS2812B individually addressed

The matrix consists of 256 individually addressed RGB LEDs arranged in 16 rows and 16 columns. Each pixel can emit a colour from a 24-bit palette. One microcontroller pin is...
4.9 (5)
Index: LED-06183
Index: LED-06183
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Regular price €23.50 Price €23.50

Eight-segment display x3 - 14mm red - common anode

Triple 8-segment display allows you to display three digits along with points and some letters.
5.0 (4)
Index: LCD-06447
Index: LCD-06447
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4-digit 0.56'' display - 7-segment backpack - I2C - red - STEMMA QT / Qwiic - Adafruit 5599

7-segment display with a diagonal of 0.56'' from Adafruit. It enables the display of 4 digits with dots after each digit and one colon between digits 2 and 3. The digits of...
Index: ADA-22204
Index: ADA-22204
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Regular price €17.50 Price €17.50

10-segment LED Bar Display OSX10201-RGB1

10-segment LED display, the range of colors is 4 x red, 3 x green, 3 x blue. It can be used for example as a temperature gauge or liquid level.
5.0 (3)
Index: LED-08171
Index: LED-08171
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Eight-segment display x1 - 14mm blue - common anode

Single 8-segment display digits with point and some characters.
Index: LCD-06439
Index: LCD-06439
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Eight-segment display x2 - 14mm blue - common anode

Dual 8-segment display two digits along with points and some characters.
Index: LCD-06435
Index: LCD-06435
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Adafruit 0.56" 4-Digit 7-Segment Display with I2C Backpack - Red - STEMMA QT / qwiic

Adafruit Backpack module with a 7-segment display consisting of 4 digits with dots. The display diagonal is 0.56 " , and the module digits are highlighted in red . The...
Index: ADA-21079
Index: ADA-21079
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Regular price €13.90 Price €13.90

Eight-segment display x1 - 14mm green - common anode

Single 8-segment display with digits with points and some characters.
5.0 (3)
Index: LCD-06440
Index: LCD-06440
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Grove - Module 4x 7-segment display - digital interface

Grove series four-character 7-segment display module. It allows displaying four digits along with colon and some letters in red. Based on TM1637 chip, it is compatible with...
5.0 (5)
Index: SEE-11293
Index: SEE-11293
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10-segment LED Bar Display OSX10201-GYR1

10-segment LED display, the range of colors is 5 x green, 3 x yellow and 2 x red. It can be used for example as a temperature gauge or liquid level.
5.0 (7)
Index: LED-08170
Index: LED-08170
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Eight-segment display x1 - 14mm green - common cathode

A single 8-segment display allows the display of a digit along with a period and some letters.
Index: LCD-07288
Index: LCD-07288
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10-segment LED Bar Display OSX10201-GGR1

10-segment LED display, the range of colors: 7 x green, 3 x red. It c an be used for example as a temperature gauge or liquid level.
5.0 (3)
Index: LED-08169
Index: LED-08169
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RP2040-Matrix - RP2040 microcontroller board with 5x5 LED matrix - Waveshare 24594

RP2040-Matrix from Waveshare is a module with a built-in Raspberry Pi RP2040 system, which has 20 GPIO pins and a 5 x 5 RGB LED matrix , used to create various visual...
Index: WSR-23569
Index: WSR-23569
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Regular price €7.90 Price €7.90

10-segment LED Bar Display OSX10201-RGG1

10-segment LED display, the range of colors is 4 x red and 6 x green. It can be used for example as a temperature gauge or liquid level.
4.5 (2)
Index: LED-08172
Index: LED-08172
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Gravity - segment display 4-digital I2C - green - DFRobot DFR0645-G

Four-digit, 8-segment Gravity series display with adjustable 8-level brightness levels, The modules are equipped with an I2C port compatible with the Gravity...
4.5 (2)
Index: DFR-16309
Index: DFR-16309
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Neco Unit LED - cat ear shaped board with RGB LEDs - 2 pieces - M5Stack U163

Neco Unit LED is a cat ear-shaped board with RGB LEDs from M5Stack . Equipped with 35 WS2812C-2020 RGB LEDs, it offers countless lighting effect configurations. With two...
Index: MSS-23507
Index: MSS-23507
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Regular price €15.90 Price €15.90

Construction and principle of operation of segment displays

The typical construction of a segment display uses LED diodes , which conduct current when voltage is applied to the pn junction, which is manifested by the illumination of one or more segments. Most often, segment displays are 8-segment, consisting of four vertical or inclined lines and three horizontal lines in the shape of the number 8 and the eighth segment in the shape of a dot. The diodes forming single segments will glow only when a forward bias voltage is applied to them, and the brightness of the segment will depend approximately linearly in proportion to the current flowing through the diode. For this reason, to prevent damage to the display, connect its segments to a voltage source through resistors that limit the flow of current. The color of a segment's light is related to the voltage across the LED that makes up the segment. For the red color, the voltage drop across the diode is approx. 2.0-2.2 V, while for the blue color it is approx. 3.6 V. For a standard, single 8-segment display composed of red LEDs, the current consumption is approx. . 15 mA per segment - taking into account that the display will be controlled by an integrated driver operating at TTL level voltages (5.0 V), and the voltage drop will be 2.0 V per segment, referring to Ohm's law and a series of resistors. E96, display segments should be connected to 220Ω resistors. A 7-segment display may also be the perfect solution for your project.

Controlling segment displays using logic circuits

Segment displays can be controlled from microcontrollers, but also in purely hardware form, e.g. using the CD4511 system, which is a 7-segment driver and BCD decoder in one (the system does not support a display segment imitating a dot) to control displays connected internally in a common cathode system. The system is powered by 5.0 V and is equipped with four inputs marked as A, B, C and D and corresponding to bit weights of 1, 2, 4 and 8, respectively. The controller has seven logical outputs, one for each segment. The maximum output current of a single output is 25 mA. By selecting resistors, you can set the intensity of the segments' lighting according to the project needs.

RGB LED matrices - effective and practical

Matrices of RGB LEDs arranged in the form of a two-dimensional array enable the display of various signs, graphic symbols and more! Such boards are found in everyday life, among others: as mosaic displays of advertisements and passenger information. The LED matrices we offer can be controlled with both Arduino and Raspberry Pi. Thanks to the built-in driver, one microcontroller pin is enough to operate the matrix. The RGB LED matrices we offer are available in various row and column sizes, i.e. from 1x8 to 64x32. Thanks to this, using RGB LED matrices, you will be able to diversify the appearance of the operator panel interface and build a board to display cool animations!

Segment displays enable legible display of various types of information, which consist not only of numbers and letters, but also of special characters. The segment display is used, among others, in electronics, household appliances and calculators. Moreover, it is used in street advertising, various types of measuring instruments, electronic equipment and even street advertising. The 7-segment display is one of the most popular among all displays of this type.

Seeedstudio 7-segment displays are distinguished by easy operation, universal use and wide compatibility. Selected models can be successfully connected to a microcontroller Arduino. Adafruit 7-segment displays are also a good choice. Selected models are controlled exclusively via the I2C interface. Adafruit modules require 5V or 3V to be powered.