Technical Discussion

http://www.learn-c.com/data_lines.htm -> data bytes,words,nibbles,HEX
http://www.learn-c.com/boolean.htm -> Boolean logic
http://www.learn-c.com/adlines.htm -> Address lines & ports
http://www.learn-c.com/schemat.htm -> schematic
http://www.learn-c.com/hardware.htm -> the hardware
http://www.learn-c.com/alltoget.htm -> controlling hardware with software
http://www.learn-c.com/experiment1.htm -> basic switch detection
http://www.learn-c.com/experiment4.htm -> General purpose digital input output module
http://www.learn-c.com/experiment5.htm -> controlling motors
http://www.learn-c.com/experiment6.htm -> controlling motors II
http://www.learn-c.com/experiment7.htm -> hi switches
http://www.learn-c.com/experiment8.htm -> digital to analog convertion
http://www.learn-c.com/experiment9.htm -> Analog to digital convertion
http://www.learn-c.com/experiment9.htm -> analog reference control of motors
http://www.learn-c.com/experiment11.htm -> bi directional analog reference control