MchaneyJobs

...(tachometer) and REAL-TIME. Easy, just count how many pulses comes during 20ms and then you have all to calculate RPM. Check attached file, I have recorded some pulses from engine ignition system. Pulses are like on that file. Here is tachometer which you can use on application : Some help from here : ~mchaney/homedyno/ I only accept programs done with Delphi. I require sources. This is easy work until you understand, maths of porgram are very easy. There is lot about of engine RPM calculation on internet. Simple math formula. I can also advice. I can do all real world testings. BR, Harri PS. Ask more if something is not clear, this