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Explanation of common sensors IV - water sensor Specific explanation The sensor operates by using a series of five bare wires connected to system ground. Insert one sensing trace, five grounding traces and a total of five sensing traces alternately between each two grounding traces. The sense cable is connected to a 1 megohm pull-up resisto ...

1, Environment introduction Compiling integrated development environment: IAR MCU: CC2530(ZigBee) Programming language: C language Mobile APP: QT design is adopted, and the program supports cross platform compilation and operation (Android, IOS, Windows and Linux can be compiled and run, and the corresponding QT environment on the platform ...

Two sensor filtering A car moves in a variable speed straight line with a GPS locator and a speedometer. The data from the two sensors are optimally estimated by Kalman filter. Suppose the observed data is a vector z = [z1 z2] T. z1 is the GPS positioning position and z2 is the speed reading of the speedometer. The covariance matrix R~N( ...

1 Introduction Hi, everyone, this is senior Dancheng. Today I'd like to introduce a single chip microcomputer project made by senior students Design and implementation of blood oxygen and heart rate detector based on STM32 It can be used in curriculum design or graduation design Technical solutions Design help:<Q>746876041 2 main d ...

1, SPI introduction SPI is the abbreviation of English Serial Peripheral interface. As the name suggests, it is the Serial Peripheral interface. It was first defined by Motorola on its MC68HCXX series processors. SPI interface is mainly used between EEPROM, FLASH, real-time clock, AD converter, digital signal processor and digital signal d ...