Multi-spot Temperature Monitor System for Refrigeraters
Temperature monitor system is composed of MCS-51 series single chip machines. It is made up of 8031 single chip machines as driving system, of ADC 0809 chip cards as a/D transformers, of 74LS 138 coder as system address code interpreting circuit. Workable programs matching with 51 series chip machines will be selected and connected with parallel interface 8155 for combining mouth expansion. The 3 place digital displayer LBD will be driven up. This system requires only the received data be transferred into temperature degree display and when beyond this temperature range occurred, red light will be blinking on the display.