Design of Portable General Wireless Acquisition Device Hardware

In this paper, a portable universal wireless acquisition device was designed. Stm32 single chip microcomputer was selected as the core of the device, AD620 module was used for signal, SD memory was selected as data buffer amplification, ZigBee module was adopted for wireless communication. DS3231M real-time clock chip was used for data management and control. As the power supply voltages between modules were inconsistent, SX1308, TH7805 and TPS79533 were used for power management. Finally, the signal was displayed and analyzed by the upper computer software.