This paper briefly discusses the application of microprocessors to small batching systems. A 16-ingredient sequential batching system with a weigh hopper and two mixers is used as an example. The system is broken down into four main parts, the Basic Processor containing the microcomputer, the A/D Converter Module, the Control Panel and Display, and a separate Interface Unit. Each is briefly described and the advantages of using microprocessor control over more conventional techniques is pointed out.