Preface: I learned how to make a car before, and I have always wanted to add a remote control module to the car. I just took this opportunity to add a remote control to the car. The student party, therefore, is determined to be cheap when it comes to selecting candidates. 1 Main control board: STM32F1C8T6, an absolutely cheap chip, about 11 yuan in Lichuang Mall, with relatively powerful functions, and belongs to the STM32 family. 2 Wireless communication: NRF2401, about 2/3 yuan each, the communication range is about ten meters to tens of meters, the relatively cheap wireless communication module at this stage, the configuration process is not too troublesome, you can control it after a little understanding. 3 This remote control can choose a single joystick or a double joystick. Generally speaking, one is enough to control the front, rear, left and right (the control of this module is relatively simple, you only need to call the chip ADC function). 4 The program download end is 4-interface SWD download (mainly because the interface for J-link download is not yet available). The use of this module requires a certain program foundation. The specific use is: 1. The SPI function required by the NRF2401 module. This chip has hardware SPI, and you can also choose software SPI. 2. ADC (analog-to-digital conversion) call. One joystick uses two ADCs. According to You need to write the program yourself. 3 All other aspects are based on the use of STM32 chips, making it easy to get started.
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