Measuring Unit Controlled by Computer

The object of this work is to meet readers with the basic principle and solution of universal measuring cards for personal computer, project and realise own „Measuring Unit Controlled by Computer“. Comparing parameters nominated unit with commercial using devices. The project describes contituent elements like set analogue inputs for measuring of voltage and current, analogue outputs, digital inputs, digital outputs and counter. The work deals with using standard interface USB for communication between measure unit and host by personal computer. And explanations control program of the microprocessor