Really Large Size 7 Segment Display with SPI Interface – 8 Channel SPI Relay Board
https://www.electronics-lab.com/project/really-large-size-7-segment-display-with-spi-interface-8-channel-spi-relay-board/
This is an SPI Interface multichannel relay board for high voltage AC or low voltage DC loads. It is ideal for controlling LEDs lights, coffee machines, fans, pumps, or other high-voltage electrical appliances. The board also breaks out the SPI header, so controlling other boards is still possible. Each relay can handle current up to […]
3 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed)
https://www.electronics-lab.com/project/3-digit-common-cathode-0-5-7-segment-display-module-multiplexed/
This is a 3 Digit 7-segment display project that contains 3 x Common Cathode displays, current limiting resistors or each LED segment, 3 x PNP Transistor on each common cathode for multiplexing etc. The project works with 5V TTL signals but can be optimized for 3.3V operations by reducing the current limiting resistors’ value. A […]
Arduino 4-Digit 0.5″ Common Cathode 7 Segment Display Module
https://www.electronics-lab.com/project/arduino-4-digit-0-5%e2%80%b3-common-cathode-7-segment-display-module/
This project will help you to easily develop an Arduino compatible project that requires 4 x -7Segment 0.5″ displays. The project consists of an Atmega328 microcontroller, 4 x BC847 NPN transistors to drive the common cathode displays. All displays are used in multiplexing configurations. The circuit operates with 5V DC and consumes a few milliamps. […]
Arduino 3-Digit 0.5″ Common Cathode 7 Segment Display Module
https://www.electronics-lab.com/project/arduino-3-digit-0-5-common-cathode-7-segment-display-module/
This project will help you to easily develop an Arduino compatible project that requires 3 x 7-Segment 0.5″ displays. These are common cathode displays that use multiplexed configuration, BC847 transistor drives 3 x common cathodes, all display segments are connected to the microcontroller using current limiting resistors. The circuit operates with 5V DC, Connector CN1 […]
Arduino 2-Digit 0.5″ Common Cathode 7 Segment Display Module
https://www.electronics-lab.com/project/arduino-2-digit-0-5-inch-common-cathode-7-segment-display-module/
This is an Arduino compatible board for creating 2 Digit Display projects. The circuit operates with 5V DC, Connector CN1 is provided for bootloader programming and Arduino firmware upload. A new Atmega328 chip requires a bootloader and Arduino firmware programming, Connector CN1 helps you with both functions. Follow the link below to learn more about […]
4 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed)
https://www.electronics-lab.com/project/4-digit-common-cathode-0-5-7-segment-display-module-multiplexed/
This 4 Digit 7 segment display project contains 4 x Common Cathode displays, current limiting resistors or each LED segment, 4 x PNP transistors on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors […]
2 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed)
https://www.electronics-lab.com/project/2-digit-common-cathode-0-5-7-segment-display-module-multiplexed/
This 2 Digit 7 segment display project contains 2 x Common Cathode displays, current limiting resistors or each LED segment, 2 x PNP Transistor on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors’ […]