The thermostat solution is based on the DMG80480C043_02W smart screen design, through DS18B20 and MLX90614 to collect the temperature values of the equipment’s inlet and outlet respectively, and send them to the T5L chip for processing, and display the temperature values on the screen in real time. At the same time, the PID temperature control algorithm is used to control the heating device, so that the outlet temperature is stabilized at the set value, and the effect of constant temperature heating is achieved.
The screen displays the outlet temperature change curve, which is convenient for adjusting PID parameters
1. Scheme design
(1) Scheme block diagram
(2) Hardware design drawing
The hardware consists of temperature acquisition board PID-Main, DMG80480C043_02W smart screen.
(3)Screen interface design
Main Interface
Control board
(4)Development environment
Interface development: DGUS system;
Temperature control development: Keil C51 or TKStudio.
Post time: Jan-16-2023