18 Mar 06
fixed a bug in the hardware part: pins 2 and 4 of Q2 must be swapped
 resistance R33 decreased to 30 Ohm.
 initially added a software module for magnetic sensors

04 Mar 06 
added pullup resistor to RESET
R17..R20 changed to 2.2k, R21..R24 --- to 3.3k

24 Feb 06
 LEDs added
 Tantalum capacitor C35 replaced with ceramic 0805
