Application of MSP430 in Low Power Low Temperature Recorder

A software and hardware design method of portable low power low temperature recorder is introduced, which is used to record the temperature changes during the transportation and distribution of cold chain of biological tissues. And the data can be read through the USB interface. The hardware of low temperature recorder consists of 5 parts: microprocessor, temperature acquisition module, memory module, power management module and USB interface module. If the temperature recorder is placed out of the freezer, extends a plurality of temperature probe into the freezer space around, can be measured by low temperature to -250℃; if the temperature recorder is placed in the freezer, minimum working temperature is -40℃. The low power consumption of the device can be realized by configuring the working mode of MSP430.