LED Flasher Schematic
Here`s the new flasher circuit schematic. It consists of a 555 timer circuit and a power transistor. The power transistor is probably way overkill, (it is rated...
Motion Activated On/Off Light or Electronic Appliance Schematic
The schematic is given below.it would be better if you built it in 3 different parts-like i have done it. The 555 timer circuit: -connect pin2 to pin.....
High-Brightness LED Grow-Light
Note: This project page has morphed into a design discussion. (Constructive suggestions and collaboration are still welcome. See the comments sectio.....
DIY LED Tachomter (RPM gauge)
Each one can drive 10LEDs in either bar mode like this project or dot mode. Switching between both modes can be done, more instructions in datasheet. 21 LEDs of...
DIY Full LED 600+ Lumens LED Headlight
Now gently bend the leads of the LEDs and using the schematic circuit diagram given below begin to solder Once you finish soldering, it shoul.....
Custom LED Touch Light Fixture
The circuit can be divided into four sections: power supply, touch sensor, microcontroller, and LED driver. The touch sensor is connected to the frame.....
Blinking LEDs to Music
This is a fairly simple project for anyone with some electronic skills. Plug this circuit into an audio source and the LEDs will blink to the rhythm o.....
Automatic Dimming Nightlight Circuit
This is the circuit that I designed for this project. To power this project, I am using a 6V 400 mA DC power supply. Its open-circuit voltage (no load.....
41 LED Flasher Circuit using 555 IC
I made this as a quick project I made to use a lot of the LEDs I recently got. It basically connects via a 555 8 pin IC and allows for adjusting the t.....
circuit flashing led schematic
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Touch switch circuit
A touch switch for a USB powered desk lamp, and the touch switch isn`t working. The circuit diagram, layout and pictures are below. I used the circuits from the...
LEDs Fade In/Out Circuit Problem and LED Sequencer
I built this circuit from the led beating heart frame instructable. I can`t seem to get it to work. Any ideas? I also built this led sequencer. It doe.....
12V light dimmer
I have a portable 50W light that is run off a 12V 7Ah battery. In some cases the light is too bright so i was wondering what parts i would need to mak.....
Buck Converter LED Driver for Automotive
TLD 5085EJ is a smart LED buck converter with an integrated power switch capable of driving up to 1. 8A load current with excellent line and load regulation. Th...
Authentic Looking Knight Rider Led Project
You see the red lights chasing up and down on the front of KIT, but in between each sequence there is a pause of about 1 second before it starts again! Almost a...
LED Timing Light
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LED Hat
This ridiculous hat is one of my typical procrastination projects. During swatvac for my final exams I got invited to a friends hat themed Birthday party. With ...
Power Design
Electronic ballasts for dimming fluorescent lamps require a control interface for the user to set the desired lamp-brightness level. Existing interface circuits...
Arduino UNO Tutorial NightLight
A Light Dependent Resistor (LDR) to create a simple childrens bedroom nightlight which turns on automatically when it gets dark and turns off when it gets light...
AT89C2051 Night Light Saver
The Saver V5. 0 runs simple clock emulation program, turns a night light on and off with preset time, say 19:00 to 22:00 everyday. The design features low cost,...