The EnerJar is an easy-to-build device that accurately measures the power draw of electrical appliances. The EnerJar was the winner of the Greener Gadgets design competition. The design is still being optimized, but preliminary schematics and source code can be found on this site by following the "Hardware" and "Software" links to the left.
I needed to replace two old, unreliable thermostats for controlling the heating and cooling for a large garden shed.
Commercial basic digital thermostats are available quite cheaply, but some lack the ability to control heavy loads or have the extra features that I require for saving energy when the door is often left open or to indicate temperature being out of range etc.
I like the PIC18F1320 microcontroller used in my previous project - so decided to use it again in a very similar design to drive three multiplexed LED displays and read the temperature from a Dallas/Maxim DS18x20 "1-Wire" digital sensor.
Since I finished my degree in April, I have been looking for work. The search has been slow but hopefully soon I will be making the big bucks. To fill my spare time I decided to do something with the mounds of electronics and such sitting in my room. First is to build a robot using stepper motors.
This instructable describes how to integrate hobby servos (the kind used in RC planes, cars, etc.) into your microcontroller projects.
The reason for building this device is primarily because incandescent light bulbs are being widely replaced with fluorescent power-saving ones. So the differences between dimmer and this device are that it has two channels, it can't be used for light dimming and it can control those power saving fluo-bulbs which ...
For quite some time I've been wanting to create a device that outputs VGA signals. My main goal was of course to be able to display whatever I wanted on the monitor I was currently using.
This is a new design of a tutorial board based on the popular PIC16F84A microcontroller. It features eight single leds, a 7-segment display, an LCD display and five push buttons. It is an ideal solution for the beginner to take his/her first programming steps in the world of microcontrollers. Having an in-circuit-programming (ICP) header, it can be easily reprogrammed without unplugging the microcontroller each time, provided that the programmer also supports this feature...
This LED clock may not be the easiest to build but surely it is the one with fewer parts that you can find, for that reason I call it "The ANP LED Clock". (ANP stands for Almost No Parts.)
Using the micro controller PIC 16F84A or the 16F628 (same pinout), this clock have more and improved features This LED clock may not be the easiest to build but surely it is the one with fewer parts that you can find, for that reason I call it "The ANP LED Clock". (ANP stands for Almost No Parts.)
Using the micro controller PIC 16F84A or the 16F628 (same pinout), this clock have more and improved features ...