The design and facture of a digital temperature controller based on 78F9234 single chip

The system is a nucleus model on the main control of single chip computer 78F9234, using DS18B20 temperature sensor to collect temperature data and digital tube monitor to show temperature data, with up-and-down limitation of temperature control key to change temperature rise and drop, heating indicator equipment, overheating protection and buzzer warning function, single-chip microcomputer's burning port and anti-death circuit. The system is convenient to use, cost is comparatively low and control system in software can be further improved to expand its function without adding its hardware cost, which would enhance the cost performance of temperature controllers.