In order to effectively detect the input gesture information

a novel capacitive sensing technology is adopted

which is a low power consumption

low-cost and high-resolution non-contact sensing technology. When different gestures close to metal plate

the capacitance value of the metal plate to the ground will change. FDC2214 will detect this weak change and convert it into 28 bit binary digital output

which is output to the microprocessor with I2 C interface for easy acquisition and processing. Because different gestures can produce different capacitance values and output different values

after many training and machine learning

different gestures can be recognized.The test results show that the recognition rate of this method for different gestures is over 99 %

and it can be used in human-computer interaction equipment.