Design of Low-power Portable Multi-function Digital Oscilloscope

With the continuous development of integrated circuit technology and digital processing technology, this article designed a portable low-power multifunction digital oscilloscope based on STM32F407ZGT6. The input signal can be processed through the signal conditioning circuit, and the ADC module carried by the main control chip STM32 is used to collect external signals, using a 3.5-inch TFT-LCD to display the processed signal waveform. The added touch screen makes the operation more convenient. The software ported the UCOS-II embedded operating system and the graphical support system UCGUI in embedded applications to form a complete real-time operating system. After actual testing, the oscilloscope has the characteristics of high real-time performance, low power consumption, stable and practical performance. And it has strong practical value and promotion value.