Hi
I am new and need help in code..lcd,led,button is ok but here is external interrupt and need precise timing... I read some were " blink without delay." 
http://www.transmic.net/en/16628-v64.htm
If any one have time and good will to help...one more;pickup coil is on different position on different motor bikes...after I can put some RPM calculation or add temp...THNX