pmsg_vol

说明：  C51控制AD9833实现程控波形发生器，在keil5上即刻运行(C51 Controls AD9833 to Realize Programmable Waveform Generator)

STM32 CH376 控制USB打印机(STM32 CH376 USB printer)

采用C语言实现的对两个二进制数字实现booth法补码一位乘，按照《计算机组成原理》中的讲解来实现。(Using C language to achieve the of two binary numbers to achieve booth method complement a passenger, in accordance with the computer composition principle to explain to achieve.)

基于STM32F103XX平台，SPI协议接口OLED屏 UI三级菜单界面(Level 3 menu interface)

说明：  内有电路图和对应的程序，已经调试成功，能实现定时功能。(There are circuit diagrams and the corresponding procedures are debugging success, to achieve timing.)

单片机学习，光敏和热敏电阻实验中的DA-AD转换程序(MCU learning, photosensitive and thermistor experiment DA-AD conversion program)

180度舵机可以由按键控制，缓慢转180度(The 180 degree steering gear can be controlled by keys and rotates 180 degrees slowly)

stm32下使用max7219驱动点阵,使用spi总线来没驱动，最后下载验证，结果很稳定。(Under the stm32 use max7219 driver lattice, the use of spi bus to not drive, download the verification, the result is stable.)

说明：  模拟了无人机遇到障碍物自动避障的原理，并且加了大量的注释！(The principle of UAV avoiding obstacles automatically is simulated, and a lot of comments are added!)

ZH03B激光粉尘传感器（PM2.5传感器）-炜盛科技(ZH03B Laser Dust Sensor (PM2.5 Sensor) - Weisheng Technology)