Add HEX file with the firmware

Implment contact debouncing Based on "A Guide to Debouncing" by Jack G. Ganssle: http://ohm.bu.edu/~pbohn/__Engineering_Reference/debouncing.pdf

Process buttons in the Timer/Counter Overflow Interrupt Button 1 - Turn LEDs on Button 2 - Switch colors

Add a palette with 10 colors

Use 3 PWM channels for setting RGB intensities

Add initial firmware

Update values assuming 5V input

Move C1 closer to VCC and GND pins of AVR

Redesign the PCB assuming 4V input

Remove TPS61070 boost converter Previous version of the board is saved in the "tps61070" branch.