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 […]
Sound to Colour Light Effects – Arduino Compatible
https://www.electronics-lab.com/project/sound-to-colour-light-effects-arduino-compatible/
This is a fun-loving project based on the Arduino platform. The project creates color light effects with sound level sense by an onboard condenser microphone. The project consists 20 x WS2812B RGB LEDs, an Atmega328 micro-controller, condenser microphone along with pre-amplifier, RCA connector, and trimmer potentiometer to direct feed audio. The project can be used […]
Automatic LED Stairway Lighting – Arduino Compatible
https://www.electronics-lab.com/project/automatic-led-stairway-lighting-arduino-compatible/
This creative idea is suitable for a stairway with 16 stairs, each stair can have a 12V LED. It has two sensors one at the start and one at the end of the stairs and when the sensor trigered at any end it starts a process of lighting each of the steps in a progressive […]
PIR Motion Sensor LED Ceiling Light – Arduino Compatible
https://www.electronics-lab.com/project/pir-motion-sensor-led-ceiling-light-arduino-compatible/
This motion sensor LED ceiling light board has been designed using 4 white LEDs each of 1-3W, PIR sensor module, Atmega328 microcontroller, low ohm IRLR7843 MOSFET, and few other components. The PIR sensor detects the infra-red rays emitted by human motion within the detection area and switches on the 4 white LEDs for 10 seconds. […]
16 High Power LEDs Knight Rider Light – Arduino Compatible
https://www.electronics-lab.com/project/16-high-power-leds-knight-rider-light-arduino-compatible/
This is a Knight Rider LED Light and it is one of the best Arduino projects for beginners. This board drives 16 high-power LEDs to turn them ON one by one sequentially. This is an open-source Arduino compatible project that contains 16 high current MOSFETs, Atmega328 microcontroller, 5V regulator etc. The gate of IRLR7843 MOSFETs […]
Temperature Controlled RGB LED Light Stick – Mood Light
https://www.electronics-lab.com/project/temperature-controlled-rgb-led-light-stick-mood-light/
The circuit presented here is a LED light stick which changes its color in respect with the room temperature. This is an Arduino compatible open source project consisting of 20 x WS2812B Addressable RGB LEDs, LM35 Temperature Sensor and ATmega328 microcontroller. Atmega328 microcontroller reads the LM35 temperature sensor and changes the RGB LEDs color as […]
LED Fading Effect / LED Strobe using 555
https://www.electronics-lab.com/project/led-fading-effect-led-strobe/
In general, generating an LED fade effect requires a microcontroller or another expensive circuit. We have built this low-cost LED fading board using an inexpensive 555 Timer. The 555 timer is used as an astable multivibrator, which generates low-frequency pulses, further, this pulse train is feed to the base of BJT transistor TIP122 with a […]
60W LED Dimmer for 12V LEDs using 555 Timer
https://www.electronics-lab.com/project/60w-led-dimmer-for-12v-leds-using-555-timer/
The project shown here is a cheap 60W LED dimmer for 12V LEDs/12V LED strips. The circuit is based on the very popular, versatile, and low-cost 555 timer IC, NE555 IC generates a PWM signal and IRF540 MOSFET works as output driver for the LEDs. In this circuit the 555 IC used in an astable […]
24 LEDs Bargraph Display using 74HC595 Shift Register
https://www.electronics-lab.com/project/24-leds-bargraph-display-using-74hc595-shift-register/
This project is built for fun loving users to create a 24 LED bar-graph for light effects that can be driven using Arduino or another microcontroller. The project consists of 74HC595 x 3 chips, and 24 LEDs of Red, Green, Blue, and Yellow colors. The project helps the user to experiment with serial-in and parallel-output […]
Smart RGB LED Light Stick – Arduino Compatible
https://www.electronics-lab.com/project/smart-rgb-led-light-stick-arduino-compatible/
This is a Smart LED light stick that contains 20 x WS2812B single wire addressable full colors RGB LEDs and Atmega328 microcontroller. These full colors chainable intelligent RGB LEDs work with a single wire addressable protocol thus they require a micro-controller to generate the pulse train to control the colors and flashing effects. Refer to […]