Development of Temperature Acquisition System based on STM32

In this paper, the method of temperature acquisition by STM32 is described. The hardware circuit is designed. In order to make the measurement value accurate and reliable, the software is programmed,the temperature sample for 100 times. Remove the maximum number of twenty, the same as the minimum, with the remaining 60 data to sum, and calculate the average value as the final acquisition value. This mean filtering algorithm can effectively remove interference. The test results show that the design can accurately collect the temperature value, and has a certain practical value.