LED Projects

3 LED Bike Light for PIC10F200

Description This project is a multi-function LED bike (cycle) light using 3 LEDs. It is based on a PIC10F200 baseline microcontroller, running from a supply voltage of 2 to 5 volts.  In standby mode it consumes a current of less than 1µA making it perfect for battery powered operation. It uses three individually driven high …

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LED Driver

Universal High-Power LED Driver – Firmware update using PIC16F1823

Here’s the updated firmware for my Universal High-Power LED Driver. This version has on-board current set up function, so you can change the drive current without re-programming the PIC microcontroller. You can either download the ZIP file containing the while project, or just the HEX file. After upgrading your firmware, you can change the drive current of the …

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Picaxe LED night light

Picaxe LED night light

This is a little night-light that comes on when it gets dark, to illuminate dark rooms or hallways. I’m sure you can buy these cheaply ready made but it’s more fun to make your own, and this way it can be customised exactly how you want it. Power efficiency The unit is very efficient – …

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Background Math

Breathe-Easy EEG

Introduction By measuring brain activity using electrodes and an amplifier circuit, electroencephalograms (EEGs) are at the intersection of electrical engineering and neuroscience. By using signal processing techniques, we can examine the effects of external stimulation, such as music and meditation, on brain waves. We primarily examined alpha and beta brain waves in our EEG. While …

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