Nightrider

通过DS1302时钟控制的继电器动作。时钟可调。(By DS1302 clock control relay. Clock adjustable.)

STM32的程序，是在正点原子的mini开发板基础上自己编写的程序，包括超声波测距，PWM波输出，同时进行3路AD采集的程序，对想要学习stm32的同学非常有用(STM32 procedures in mini development board based on punctuality atoms have written procedures, including ultrasonic distance measurement, PWM wave output, simultaneous 3-way AD collection procedures, the students want to learn useful stm32)

msp430f5529和nokia5110显示字符(Msp430f5529 and Nokia 5110 display characters)

单芯片 电子称方案,实现5000 分度厨房秤，是最早的单芯片电子称方案(scale project)

说明：  STM32F407驱动SPI屏幕，采用的是模拟SPI(STM32F407 drives SPI screen, using simulated SPI)

PIC单片机实现RS232-C串口通信，汇编语言(PIC microcontroller to realize RS232-C serial communication )

说明：  modbus仿真设计，充当服务器的功能，在测试中具有很重要作用(Modbus simulation designed to serve as a server.It plays an important role in testing.)

斩波电路也称为直接直流变流电路，它的功能设计将直流电变为另一固定电压或可调 电压的直流电，下面给出一种降压斩波电路。(The chopper circuit is called direct DC converter circuit, it will function design of DC to DC voltage or other fixed adjustable voltage, a chopper circuit is given below.)

系统平时处于循环接收检测状态，当有按键动作后发送数据 ，对方收到数据后LED闪烁， 任何一方可以发数据也可以收数据。 1． 当检测到按键动作后发送数据，自身LED闪烁 2． 当收到数据后LED闪烁 (Usually in the loop receiver detect state data, send keystrokes LED flashes after receipt of this data, either party can send data can also receive data. 1. When sending data detected keystrokes own LED flashes. LED flashes when data is received)

说明：  stm32与fpga进行spi通信，fpga进行测频，占空比，时间间隔测量，32可控制其运行模式，并将测得结果于lcd上进行显示。(STM32 communicates with FPGA in spi. FPGA measures frequency, duty cycle and time interval. 32 can control its operation mode, and display the measured results on lcd)