8255keyboardexperiment

自己调试的，stm32控制PCF8591输出电压程序，可用运算放大电路调整输出范围，可用于输出检测电压的设备。(Self debugging, STM32 control PCF8591 output voltage procedures, operational amplifier circuit can be used to adjust the output range, can be used to output voltage detection equipment.)

本文设计了基于加速度传感器的计步器，并通过仿真以及实际调试得到了相应的结果的记录。本实验首先通过加速度传感器检测目标物体的运动，产生脉冲，将脉冲放大后经过施密特触发器整型为方波，并给出了方波的调试电路图。然后编写程序，利用D触发器检测方波的上升沿，当上升沿到来时，计数，并对十位、个位分别编码，然后由使能信号交替控制数码管输出结果。本文给出了仿真以及调试的程序、结果。(This article is designed pedometer-based acceleration sensor and the corresponding results recorded by simulation and debugging. The experiments by first acceleration sensor detects the movement of the target object, generates a pulse, the pulse amplification is a square wave after the Schmitt trigger integer, and gives the the debug circuit diagram of a square wave. Then write procedures, the use of the rising edge of the detection of the square wave of the D flip-flop, when the rising edge, the count, and ten bits are encoded, and then alternately by the enable signal output of the digital control. In this paper, a simulation and debugging procedures, results.)

PWM调光 1、学习目的：利用定时器产生PWM，了解原理和使用方法 2、硬件要求：LED灯 定时器 3、试验现象：LED灯由亮到灭，由灭到亮逐步变化，也就是调光现象(PWM dimming, learning objectives: the use of the timer to generate PWM understand the principles and use hardware requirements: LED lamp timer test phenomenon: LED lights from bright to off, gradually changes from off to bright, that is, adjusted optical phenomena)

基于keil开发环境，对STM32系统板的板载LCD显示与相关配置，程序工程已通过测试(Based on keil development environment on the the STM32 system board onboard LCD display and related configuration, process engineering has been tested)

用protues仿真，51单片机按键操作。(Using Protues simulation, 51 single key operation.)

红外遥控电灯，可以控制灯的亮度和关灭....(Infrared remote control lights, you can control the lamp brightness.)

说明：  arduino用u8g库驱动显示，外加DS18B20显示温度(Arduino uses u8g library to drive display and DS18B20 to display temperature)

请认真阅读变频器相关知识(Please carefully read the relevant knowledge Inverters)

MSP430G2553 lunchpad 自定义串口通讯协议，IAR开发环境，程序内附详细注释(MSP430G2553 lunchpad， custom serial port communication protocol, IAR development environment, the program contains detailed notes)

DHT11检测温湿度同时显示在LCD1602的代码(DHT11 detects the temperature and humidity while displaying the code on the LCD1602)