16BITE_PWM

In-software asymmetric public-key crypto subtype.

利用c51单片机实现计算器的功能 例如：普通的加减乘除，还有2进制等功能(C51 MCU using calculator functions such as: ordinary addition and subtraction, multiplication and division, there are two binary functions)

oled驱动程序，中文字库，iic通信，四线接口彩屏(qudongdwfjowqjfowejfwejfweofw)

AD7547 12位DA转换心片，用法很简单，很好用，(AD7547 12 bit DA converter Tablets, usage is very simple, very good, and)

Fills in a UChar string with the radix-based representation of a uint32_t number padded with zeroes to minwidth. The result will be null terminated if there is room.

本次设计的数控直流电阻箱主要由恒定电流源部分、显示部分、键盘部分、电源部分组成。以STM32单片机为核心控制恒流源，恒流源电路由达林顿三极管、高精度运算放大器、采样电阻等组成。通过键盘输入给定值，经D/A转换器将数字信号转换为模拟信号，控制电流。采用电流反馈电路控制精度，经多次调试改进，实现了直流电阻箱的功能。本次设计的数控直流电阻箱较以往的电阻箱相比，其优点在于可操作性强、精度高、体积小、高效节能等优点。适用于作为直流负载的应用场合。(The numerical control DC resistance box designed mainly consists of constant current source part, display part, keyboard part and power supply part. The constant current source is controlled by STM32 single chip microcomputer. The constant current source circuit is composed of Darlington transistor, high precision operational amplifier and sampling resistor. Through the keyboard input a given value, the D/A converter converts the digital signal into analog signal to control the current. The control precision of the current feedback circuit is improved, and the function of the DC resistance box is realized through many debugging improvements. Compared with the conventional resistance box, the designed DC resistance box has the advantages of strong operability, high accuracy, small size, high efficiency and energy saving. It is suitable for application as DC load.)

12864上面的并行画线，可以画圆，三角形，正方形，直线，正弦波(12,864 above the parallel line drawing, you can draw a circle, triangle, square, line, sine wave)

基于ESP8266 的物联网CoAP的实现(Implementation of Internet of Things CoAP Based on ESP8266)

T2 定时器应用简例，利用T2定时器控制小车的调速与测速功能的新定时办法(T2 timer application simple example, the use of the T2 timer to control the car' s speed and the speed function of the new timed approach)

STM8控制A7106模块收发程序，发送、接收分为两个工程(STM8 control A7106 transceiver module program, sending, receiving two engineering)