Description This project is a crystal controlled precision timer providing accurate delays from 1 second to 15 hours 45 minutes. The timer delay is set using a 10-way DIP switch. The timer is started by pressing a switch on the main PCB or from an external switch connected via the terminal block connection. A second …
Description This project came about because I have three motorbikes and being a bit of a fair weather biker they don’t get used much over the winter months. I have an OptiMate™ 4 charger that I connect to the bikes but this needs me to manually swap it from one bike to the next and …
Automatic Charger Sharing for Motorcycle Battery Charger using PIC16F628A Read More »
Please check the update at === Digital Clock Updated Version === — Original Version — As I am a WIS so I built a clock as my first microcontroller project. The clock is controlled by PIC16F628A from the PIC book . The idea was making a digital clock with hour, minute and second display. I …
Description This is an updated version of the UFO LED Chaser project, revised to use the PWM LED Chaser code version 3.0.0 with support for variable chase speed. The basic LED chaser ‘engine’ firmware is the same as that used with the 481/483 LED chaser projects also on this site. The only difference is the …
UFO round LED Chaser with speed control for PIC16F628A Read More »
Description This page is has been written to support construction of the UFO LED Chaser Kit #432K. 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 …
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 …
I needed a good LC meter for my one of my next projects so I went and built the famous LC meter by Phil Rice. This LC meter design is pretty old but since it is a perfectly good device there was no need to design/build/debug one of my own. So, I just changed the …
This project comes via two circuits on 2 boards. The first circuit is designed around a PIC16F628A. It has been presented on an experimental PC board using surface-mount components and was built in less than 1 hour, with about 2 hours to write and finalise the program. See P1, P2 The second circuit uses a …
