3 LED Bike Light
This project 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 brightness LEDs, and a single push button switch for turning the light on/off and changing operating modes when on.
Source: PicProjects

