C8051_yuanlijiyingyong_ppt

说明：  基于STM32F103单片机的LED测试源码(LED Test Source Based on STM32F103 MCU)

STM32F103,可自动稳流，调节功率,双路ADC,一路DAC(STM32F103, automatic current stabilization, power regulation, two-way ADC, one-way DAC)

something else lox lox1

说明：  113、基于51单片机老人生理智能监控GSM短信 本设计由STC89C52单片机电路+火焰传感器电路+加速度传感器+心率传感器电路+SIM800A_GSM模块电路+电源电路组成。 该系统实时监测老人是否跌倒，是否周围有火以及心率情况。 1、如果火焰传感器检测到火焰，则GSM向特定手机发送：Fire！ 2、如果ADXL345检测到老人跌倒了，则GSM向特定手机发送：Fall！ 3、如果心率传感器检测到老人心率高于120，则GSM向特定手机发送：High Heart！ 4、注意本设计一次上电上述情况每个只能触发一次上报短信，不会连续发送，防止反复发送，请放心使用。 5、短信处理过程有GSM信号灯指示。 6、GSM模块是SIM800A，该模块和SIM900A电路程序完全兼容外观外形一模一样。(GSM SMS for elderly physiological intelligent monitoring based on 51 MCU This design consists of STC89C52 MCU circuit + flame sensor circuit + acceleration sensor + heart rate sensor circuit + sim800a_ GSM module circuit + power supply circuit. The system monitors whether the elderly fall down, whether there is fire around and heart rate in real time. 1. If the flame sensor detects a flame, the GSM sends: fire! 2. If adxl345 detects that an old man has fallen, the GSM sends a specific mobile phone: fall! 3. If the heart rate sensor detects that the heart rate of the elderly is higher than 120, the GSM sends a message to a specific mobile phone: high heart! 4. Pay attention to the design of a power on, each of the above conditions can only trigger a report SMS, will not be sent continuously, to prevent repeated sending, please rest assured to use. 5. SMS processing process is indicated by GSM signal light.)

用adc0809转换 lcd12864做显示 测量 电压 电阻 加上热敏电阻测温度 测二极管极性和导通电压 (With adc0809 conversion, lcd12864 do show resistance measuring voltage, plus the thermistor temperature measurement, the measured diode voltage polarity and conducting)

把各个目录下的所有readme.txt 文件合成一个DirReadme.txt文件。主要用于代码说明文档合并(no english)

正点原子Mini板实验十七：DAC实验，为新手准备的基础源码，基于C语言，芯片为STM32F103RC(Atom Mini board experiment seventeen: DAC experiment, for beginners to prepare the basic source code, based on C language, chip for STM32F103RC)

数字时钟显示时间、定闹钟及整点报时，还能实现时钟界面的切换功能(Digital clock displays the time, set the alarm and hourly chime)

WSN的GAF算法程序针对无线传感器网络节点部署密集的特点，提出了 GAF 算法。在 GAF 算法中，根据节点的地理位置信息和节点的无线电发射半径（radio range），传 感器网络部署区域被划分为虚拟单元格（virtual gird）。根据自己的物理位置信 息，各个节点被划入到自己的单元格中。各个节点的物理位置信息可以由 GPS 或 其它定位系统得到。 (GAF algorithm of WSN deployment intensive features for wireless sensor network node, proposed GAF ​ ​ algorithm. In GAF algorithm, the radius of the radio transmitting node and the node' s location information (radio range), the sensor network deployment area is divided into a virtual cell (virtual gird). According to their physical location information, each node is classified into its own cell. The physical position information of each node can be obtained by the GPS or other positioning systems.)

基于stm32开发的频率检测及液晶显示，在显示时的测量范围为50hz到100khz。误差为<=1%。(Frequency detection and liquid crystal display based on stm32)