A short video clip is sometimes better than a long explanation : The idea of this circuit is to hack PIC oscillator circuit, by replacing the crystal by a coil : the frequency of the oscillator then depends on presence of metal near the coil, just like in a classic metal detector. To detect changes of main […]
PicoDetector : a PIC-based simple and cheap metal detector Read More »
The Microchip PIC16F877A has 40 pins 33 of them can be input or output. In this simple project I am going to configure this microcontroller to blink a 33 LED each LED is connected to one I/O pin. The PIC16F877A has 8 analog channels, so we have to configure all these channels as digital output.
PIC16F877A LED blink Read More »
Stroboscopic effects of lights for nightclubs are realized by bringing into play old white Light Emitting Diodes (LEDs) swapping the ejection lanterns/lamps for superior effectiveness at minimal cost. This control is achievable by instantaneously changing the Light Emitting Diodes on & off at elevated volts for small amount of time span. This speedy control of
Strobe Lights Project Read More »
Tengu derives its name from a mythical Japanese creature known for getting into mischief. Our Tengu, however is more earthly in nature. It responds to voice and sounds and takes on different facial features depending on the intensity of the sound. If no sound is heard for some time, it changes from a happy face to a sad
PIC 16F88 Microcontroller PIC based Tengu Read More »
Description If you want to build your own multiple RGB LED display that you can control from either a PC or a dedicated controller then this project will let you do just that. The project on this page came about when while I was developing a more complex intelligent driver. During that work I put
Serial Controlled RGB LED PWM Driver PIC12F629 based PWM controller for RGB LEDs Read More »
For our ECE 4760 final project, we designed and built a Lazer Duel game system involving two guns and a base station commucating over ultra low power RF tranceivers. We can shoot and detect shooting useing an IR emitter/receiver on the guns. The base station will coordinate the game by allowing two players to join and will end the game once a
In February of 2007 I spent a little while prototyping a board that turns any bicycle wheel into a moving display billboard using a single string of LEDs. The idea was to do something that would be very visible, turn itself on and off automatically, have enough processing power to dynamically generate bike computer style
Bicycle Persistence of Vision Light Display using PIC16F84 Read More »
I wanted to build a clock as simple as possible : built around a little 18 pins PIC no 7 segment display, only LEDs no decoder, no buffer, no driver for the LED display a cheap temperature sensor The solution of direct LED driving comes from a Microchip Application Note AN234, and as I’m using 25
A PIC16F819 DYMOCLOCK Read More »
This project is what you have been waiting for. Remember the scrolling signs you see in shops and on advertising billboards? Now you can program your own moving sign with all the effects you can think of. We have provided a blank canvas in the form of a scanning screen 15 LEDs by 7 LEDs
15×7 Display using a PIC16F628 Microcontroller Read More »
This project is aimed to design a ‘Sleep and Wake-up Assistant’. Different from a normal alarm clocks which can only make noise, this alarm clock is designed to wake up a person in a comfortable and effective way by involving sound, light stimulation, motion detection and vibration. The functions of this alarm system are: (
