Low-Cost LED Dimmer using LM3578
https://www.electronics-lab.com/project/low-cost-led-dimmer-using-lm3578/
This Low-cost LED dimer project includes two main parts, an LM3578 chip, and a MOSFET. The LM3578 generates a PWM signal, and Q1 MOSFET helps to drive a high current LED. The project also includes current limit feature. Over current trigger point is set to 1.1A. LED intensity can be set using a board trimmer […]
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’ […]
POV (Persistence of Vision) – Open-Source Arduino Nano Hardware
https://www.electronics-lab.com/project/pov-persistence-of-vision-open-source-arduino-nano-hardware/
This is an easy and simple hardware to create a POV display. The hardware consists of a Hall sensor, Arduino Nano, 17 x 5mm LEDS of various colors, etc. The Hall Sensor is connected to analog pin A5 with a pull-up resistor. The circuit works with 3.7V to 5V DC and a 3.7V battery is […]
Radio Remote Control LED Dimmer Using NRF24L01 – Arduino Compatible
https://www.electronics-lab.com/project/radio-remote-control-led-dimmer-using-nrf24l01-arduino-compatible/
This is an easy-to-make LED dimmer using RF remote control. The project is capable of driving a load up to 24W (2A X 12V LED). Any 12V single or 12V LED strip can be used. This is an open-source Arduino compatible hardware that has Atmega328 microcontroller, Potentiometer, MOSFET, 5V Regulator, 3.3V Regulator, NRF24L01 Radio modules, […]
12W Constant-Current LED Driver with PWM Dimming – 12V DC@1A Input
https://www.electronics-lab.com/project/12w-constant-current-led-driver-with-pwm-dimming-12v-dc-1a/
This is a high-performance, adjustable constant current, and PWM dimmer project. It provides accurate output constant current and PWM control. The circuit regulates the current flowing through a LED/LED array to maintain the desired level of light output. The board consists of CAT4101 LED driver chip and LTC6992-1 PWM generator chip. The CAT4101 is a […]