2018 Electronic Competition Question D-Gesture Recognition Device (Shandong University)

This design senses the capacitance changes of different gestures through the copper plate, converts them into corresponding digital signals, and displays the gesture results through the display module. It is mainly composed of three major modules: FDC2214 chip, STM32 microcontroller, and OLED display. The gesture recognition system uses the copper plate as the sensing area to sense different gestures to produce different capacitance changes, and then uses the FDC2214 chip to convert the sensed capacitance changes into digital signals, which are input to the stm32f103 development board, and then the stm32f103 chip processes the signals through the internal program. The signals needed to convert questions such as "rock, scissors, paper" are output to the OLED display, thus achieving accurate judgments on different gestures. And the training function is realized through external buttons. After testing, the design system was completed, the test results were ideal, and the various task requirements were well completed.