Introduction - If you have any usage issues, please Google them yourself
1. sensor: Pt100 platinum thermal resistance
2. measurement amplifier: its own design and construction
3. controlled object: 400W electric cup, about 0.5 kilograms of tap water
4. actuators: 12V driven, 5A load relay
5. control system: 51 single chip microcomputer
6. control algorithm: PID
7. temperature range: ambient temperature ~100 degree
8. measurement error 1 degree, control error 2 degree