STM32F4modbus从站

STM32单片机通过软件模拟SPI通讯读取SCA100T-D02倾角传感器的角度，实测通过。网上搜索了很多软件，都不是STM32的，要么都有问题。软件开发环境 KEILC MDK，单片机STM32F103RCT6。(The STM32 single chip computer reads the angle of the SCA100T-D02 angle sensor through the software simulation of the SPI communication, and the actual measurement is passed. Online search for a lot of software, not STM32, or have problems. Software development environment KEILC MDK, MCU STM32F103RCT6.)

基于STM32de电磁铁控制程序，用于控制雨伞借还装置，通过串口收发数据，用于上位机控制。

说明：  STM32L051C8T6低功耗STOP模式例程，完整工程例程，亲测可用。采用按键唤醒、串口唤醒两种方式唤醒。(Stm32l051c8t6 low power stop mode routine, complete engineering routine, available for test. Two ways of wake-up are used: key wake-up and serial port wake-up.)

说明：  stm32mini开发板各项试验库函数版本(Stm32mini development board test library function version)

stm32 mpu6050 包含上位机以及程序，说明文档。(Stm32 mpu6050 contains the host computer, as well as procedures, documentation.)

延时led灯闪烁程序，基于stm32开发板编写的延时1ms灯闪烁(Delay LED light flicker)

使用定时器TIM3输出四路的SPWM波，其中一二路、三四路波形一致，一二路与三四路波形相差180°(Timer TIM3 is used to output four SPWM waveforms, of which one, two, three and four waveforms are identical, and one, two and three and four waveforms are 180 degrees different.)

通过软件I2C读取mpu6050原始数据，并且是使用stm32单片机进行开发的，通过调用固件库进行，原始数据经过校零之后，通过串口程序发送到pc，通过串口调试助手可以查看数据，方便用户调试

STM32F103数字滤波器，迷你开发板测试可用，配合MATLAB仿真(STM32F103 digital filter)

experiment equipment: stm32F103 C8T6 Purpose: ADC real-time sampling shows waveforms through an anonymous host computer (virtual oscilloscope) ADC1 and serial 1 dual DMA use to speed up the transfer rate Hardware resources: 1, ADC1 channel 1 (peripheral A1) 2, serial port 1 (baud rate: 500000) Experimental phenomena: The anonymous host computer displays the waveform in real time. The sampling frequency of the ADC is about 1Mhz (the highest value of the single ADC mode has been reached, but the maximum transmission rate of the host computer is about 500000 baud. And only one byte per transfer of 14 bytes is valid (caused by the anonymous transfer protocol). It takes about 2.8ms to transfer once.