serial port writing with Delphi

Posted by reza on November 15, 2005:

Hi Dear Friends

I'm really confused by my project about controlling a heater and a fan by serial port. I have found this Delphi code that measure temperature and show it in centigrade. I want when it exceed 30 degree a serial port's pin become active and when it become lower than 20 degree another pin become active and previous pin get zero condition and vice versa.

here is project files: natan.zejn.si/electro/tempmeter/tempmeter.zip

Any help appreciated