Projects Projects
5 Lamp / LED Flash Driver
Description General Description of the following circuit.
Low cost / Automatic Emergency Light
Description Here is a white-LED-based emergency light that offers the following advantages: It is highly bright due to the use of white LEDs.
Automatic Fan Controller
Description Th1, the 50K thermistor, is a standard type.
Simple DC motor PWM speed control
The 555 is ubiquitous and can be used as simple PWM speed control Description The 555 Ic is wired as an astable and the frequency is constant and...
On-Off Temperature Control
This circuit controls a load (in this case a dc brushless fan) based on a temperature compared with a setpoint.
Sound Level Indicator
This project uses an LM3915 bar-graph IC driving two sets of ten LEDs for a 30dB range.
2500W Phase Control
This circuit controls resistive and inductive loads up to 2,500W.
BitCake – Electronic Birthday Cake
Impress your friend with the ultimate geek’s Birthday Cake!
Halloween Scare using 12F683 and ISD2532
Introduction Halloween is coming up and it’s time to do some pranks.
Hand Steadiness Tester
Introduction The Hand Steadiness Tester is a game which tests the steadiness of your hand.
Bomb Game
Introduction “Should I cut the blue wire… or the red…?” This is a very common phrase in many movies when the action hero has a bomb in front of him with little time left and he has to choose which wire to cut and stop the bomb from exploding saving millions of people.
Motion Activated Led Dice
Introduction I’ve always wanted to build an electronic led dice, but something different from what we see on the internet.