Description This neat little circuit provides 8 LEDs directly driven from the PIC along with a single mode control switch. The firmware elsewhere on this page drives the LEDs with a 5 bit PWM signal providing each of the 8 LED channels with four levels of intensity; off, dim, mid, bright. A number of sequences […]
8 Channel PWM LED Chaser for PIC16F628A and PIC16F88 Read More »
Description Update: Variable chase speed option kit now available (see here for details) This neat little circuit provides 8 LEDs directly driven from the PIC along with a single mode control switch. The firmware elsewhere on this page drives the LEDs with a 5 bit PWM signal providing each of the 8 LED channels with
8 Channel PWM Power MOSFET LED Chaser for PIC16F628A Read More »
Description Update: Variable chase speed option kit now available (see here for details) This neat little circuit provides 8 LEDs directly driven from the PIC along with a single mode control switch. The firmware elsewhere on this page drives the LEDs with a 5 bit PWM signal providing each of the 8 LED channels with
8 Channel PWM LED Chaser for PIC16F628A Read More »
Overview This is a building block project I developed to try out a few ideas. It decodes a 4-bit binary word to outputs that will drive a 7-segment LED display. Functionality is similar to the 7447 BCD-to-seven-segment decoder/driver IC however, because it’s implemented using a microcontroller, the segment control data can be customised to display
Binary/bcd to 7-segment decoder for PIC16F627A Read More »
Recently I acquired a 5M length of RGB LED strip using SMD5050 RGB LEDs. It has built in current limit resistors designed for operation from a 12 volt supply. Having thought this would directly attach to the Picprojects MOSFET RGB LED driver project I went ahead and bought one only to discover when it arrived
RGB LED Strip Controller high-side LED drive for PIC12F629 Read More »
Want to build an RGB LED controller that you can program with your own custom sequences and effects? Then read on. The RGB LED controller has proved to be very popular project and has been the most frequently downloaded code on the site since it was made available. I’ve been contacted by people who have
RGB LED PWM Driver Standalone PWM controller for RGB LEDs using PIC12F629 Read More »
This is the first clock I ever built. I’ve built a few LED signs, but they get boring because I already know the message. How this clock works: A motor spins the “propeller”, and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7
Propeller Clock Mechanically Scanned LED Clock using PIC16C84 Read More »
Description This simple circuit functions as a 12 LED chaser. A single illuminated LED ‘walks’ left and right in a repeating sequence, similar to the effect seen on KITT, the car in the Knight Rider TV series. Fully commented source code and programmer ready HEX files are provided for the PIC 16F84A and 16F628A at
LED Chaser for PIC16F84A and PIC16F628A Read More »
Alex Weber over at Instructables built a great programmable LED based on the AVR chip. Since I am tooled for PIC, I thought it would be fun to replicate what he has done. This simple project is fun and it provides a great building block for playing with collective behaviors. This is a How-To for
pic12f683 Microcontroller based Programmable LED Read More »
High Level Design The painting is created by a vertical pole with a flashing one-meter LED strip attached to a cart being pushed by two motors. A user can use their DSLR camera to view the long exposure effect. To upload an image, the user specifies a URL through SSH on a Raspberry Pi 0
DotStar Light Painter Read More »
