Introduction - If you have any usage issues, please Google them yourself
The system control part of the 89C51 as the core, the use of set temperature acquisition, A/D conversion in the integrated digital temperature sensor 18B20 treatment as part of the temperature. Keyboard control interface using the keyboard interface 7279, can be set through its temperature, set the parameters of PID algorithm, and can set the current time, temperature and time display switch. Using digital control, it can be real-time display the actual temperature. Main circuit is a dual optical and composed of thyristor switching circuits. Control circuit through the PID algorithm, generate PWM wave to control the main circuit of the on-off and thus control the output of electric power, to achieve the purpose of temperature control.the use of set temperature acquisition, A/D conversion in the integrated digital temperature sensor 18B20 treatment