LED VU Meter with LM3916
https://www.electronics-lab.com/project/led-vu-meter-with-lm3916/
This project is a LED VU meter based on LM3916. Description LM3916 is a dedicated IC for VU LED meter. Unlike LM3915 which have 3dB step between voltage levels, the LM3916 have nonlinear steps: -20, -10, -7, -5, -3, -1, 0, +1, +2, +3db, just like old school analog VU meters. I saw in YouTube […]
RGB LED Disco Lights
https://www.electronics-lab.com/project/rgb-led-disco-lights/
This project is a microcontroller based RGB LED lights effects. Description RGB LED disco light is a simple project designed around PIC16F72 microcontroller. This firmware is a RGB driver, as name suggests it is used to derive or light red, green and blue LEDs in particular fashion. Its main feature is the pattern shown on […]
Microcontroller based running light controller
https://www.electronics-lab.com/project/microcontroller-based-running-light-controller/
This project is a lights effects board using common bulbs. Description This project provides some lighting effect by the blinking pattern of the bulbs connected at its output. Up to 8 Bulbs can be connected in between connector CN2 to CN9 and AC power to control them should be connected at Connector CN10. DC Power […]
Triac based lamp dimmer
https://www.electronics-lab.com/project/triac-based-lamp-dimmer/
Triac based Indecent lamp dimmer is a simple circuit and it doesn’t requires additional power supply, works directly with 110V AC or 230V AC. Description It is a low cost dimmer circuit for adjusting the light brightness of incandescent, Halogen Lamp, Light Bulb load up to 250 W. Features: – Input supply: 230 VAC or […]
Temperature Controlled PC FAN
https://www.electronics-lab.com/project/temperature-controlled-pc-fan/
This project is a temperature controller for a PC FAN. It regulates the speed of the FAN attached to it according to the measured temperature. Temperature is sensed using a simple NTC thermistor. Description In most PCs, the fan runs constantly, which may not be necessary. A simple circuit can regulate the fan speed according […]
Valentine LED Chaser
https://www.electronics-lab.com/project/valentine-led-chaser/
Every year at 14 February we celebrate the Valtentine’s day with our loved person. Usually we make a gift to each other to show our love to her/him. This can be a flower, chocolate or other stuff. Here we propose a different kind of gift to give her. That is a hand crafted LED chaser […]
PicoBuck – RGB LED Driver
https://www.electronics-lab.com/project/picobuck-rgb-led-driver/
The PicoBuck is a small and inexpensive 3-channel LED driver. It employs constant-current buck driving which approaches an efficiency of 95% (theoretical). It’s based on AL8805 LED Lighting Buck Driver from Diodes Inc. Description The PicoBuck supports a wide range of input voltages (6v to 20v) which may be connected to the VIN header. It […]
DC Motor Driver using L293D
https://www.electronics-lab.com/project/dc-motor-driver-using-l293d/
This project is a DC motor driver, suitable for motors of low or medium power. Allows controlling up to 6 motors or 3 motors if you want to control the rotation of the motors. Description The controller is build around the IC L293D that can provide 600mA per channel, and a H-Bridge designed with transistors […]
Super Flux RGB LED Controller
https://www.electronics-lab.com/project/super-flux-rgb-led-controller/
Introduction In this project it was used the Piranha Super-flux RGB Led of common anode, and the PIC18F25K20, in order to generate combinations of colors. It has two function modes, automatic that generate the color sequence that is stored in the μC memory, and the manual mode in which you can select one of the […]
A Very Simple Power Failure Light
https://www.electronics-lab.com/project/a-very-simple-power-failure-light/
Introduction This is a very basic power failure lighting circuit based around a relay. This simple circuit has many uses, from lighting up rooms and walkways in the case of a power failure, to monitoring and security uses. There are many different power failure circuits out there based on 555 timers or transistors but they […]