DS18B20P1602

超声波测距，能够实现汽车防撞系统超声波的测距，完全由51单片机控制(Ultrasonic Ranging)

进行平滑滤波编码分析得到接近真实值的参数(Smooth filtering to solve the problem of unstable sampling value after single sampling)

Arduino (Installation with IDE) Start Arduino IDE In the Arduino IDE, import the library the Add Library Menu. Arduino (Manual Installation) Unzip u8glib_arduino...X.XX.zip into the libraries folder of the Arduino IDE Start Arduino IDE AVR (ATMEGA) install instructions ARM INSTALL and NXP LPC1114 (ARM) example project(A graphics library with support for many different displays.)

在STM32CubeMX+TrueStudio环境使用串口打印printf内容。(Use USART show printf, under STM32CubeMX+TrueStudio environment.)

此程序为4*4矩阵键盘，键盘自身不带电源电阻，八个接线，在程序中进行需进行软件拉高拉低以便按键扫描。 应用单片机为MSP430F5529。(4* 4 matrix keyboard without power resistors MSP430F5529)

这是一个32位stm32F103c8t6程序，配合摩托车皮带轮的表面检测用的电涡流传感器，步进电机转一周，adc模块。(This is a 32 stm32F103c8t6 program, with the motorcycle pulley surface inspection using eddy current sensors, stepper motor revolution, adc module.)

矩阵键盘密码锁+简易计算器，C52的单片机平台，C语言开发，适用于初学学习。(Matrix keyboard lock+ simple calculator, C52 MCU platform, C language development, suitable for beginners to learn.)

说明：  STM32不完全手册_库函数版本_V3.3(STM32 incomplete manual_ Library function version_ V3.3)

OLED0.91显示的USB电压电流表程序，方便测试USB的电压电流情况(OLED 0.91 shows the USB voltage meter program to facilitate the test voltage and current situation of USB)

RS485和232的转换电路 带隔离的转换电路 RS485和232的转换电路 带隔离的转换电路(RS485 and 232 exchange cercuit with isolated RS485 and 232 exchange cercuit with isolated)