The purpose of the project is to build a power controller based on a small ATtiny45 AVR microcontroller which uses PWM to achieved the desired output power of a LiPo battery power source.
An LPC2138 microcontroller is used by this project to implement a simple digital audio player where the music files stored on a removable flash memory are played.
The project illustrates an advanced digital thermostat that employs the PIC18F1320 microcontroller wherein three multiplexed LED displays were allowed to be driven while easily reading the temperature from a digital sensor.