Customized products with highly integrated functionality. The main function is to collect high temperature (300 degrees+) through K-type thermocouples and battery temperature through built-in temperature probes, and then send the information to the host for data aggregation through a 433M wireless module. This module is a slave module with a built-in address code, which facilitates the host to distinguish the slave when multiple slave units are connected to the network.
This scheme adopts a low-power circuit design, which is usually in a sleep state. After being awakened by RTC timing, the wireless communication module is activated to start collecting temperature information. The temperature information is sent through the wireless network before entering sleep mode. After testing, it has been found that three 18650 lithium batteries with 2400MAH can work continuously for 60 days.