DS12887pro

给初学89c51朋友一个蜂鸣器奏乐(生日快乐)的程序(For beginner 89 c51 friend a buzzer playing music (happy birthday) program)

瑞萨单片机rl78 iic程序 官方源码 亲测 能用(Renesas MCU rl78 iic official source program   Pro-test can)

说明：  基于51单片机的简易计算器，能够实现简单的的加减乘除操作(A simple calculator based on 51 single chip computer can realize simple operation of addition, subtraction, multiplication and division.)

室内报警系统（51单片机实现）,实现室内温度监测，室内气体异常监测，室内安全监测！(Indoor alarm systems (51 MCU) realize the indoor temperature monitoring, anomaly monitoring indoor air, indoor security monitoring!)

铸造过程中温度场的描述的仿真模拟，可以写到文件中(Casting process described temperature field can be written to a file)

字符型液晶显示模块是一种专门用于显示字母、数字、符号等点阵式LCD，目前常用16*1，16*2，20*2和40*2行等的模块。本程序为1602控制程序。(Character LCD module is a kind of lattice LCD which is used to display letters, numbers, symbols and so on. At present, 16*1, 16*2, 20*2 and 40*2 lines are commonly used. This procedure is the 1602 control procedure.)

介绍TI的芯片——MSC121X系统级单片机原理与应用的PDF文档，邓宏彬主编，对MSC121X系列资源有详细介绍，还有部分应用源代码。(TI' s chipset introduction- MSC121X system-level microcontroller theory and applications PDF documents, Deng Hongbin editor, family resources on MSC121X detail, part of the application source code.)

用keilC 开发的基于nRF24LE1的wifi收发程序，已经用于实际数据传输系统(keil C wifi nRF24LE1)

温湿度检测 AM32101温湿度传感器 可以检测(Temperature and humidity sensor temperature and humidity testing AM32101)

超声波测距仪设计文档，本设计主要是以74LS04和CX20106A为测距模块，DS18B20用于温度补偿，12864液晶显示，HC-SR04为超声波显示板，语音模块由音频功率放大器LM386、语音芯片WT588D、低压差电压调节LM1117组成。(Ultrasonic range finder design documents, the design is mainly based on 74LS04 and CX20106A ranging module, DS18B20 for temperature compensation, 12864 LCD, HC-SR04 ultrasonic display boards, voice module consists of audio power amplifier LM386, voice chip WT588D, LM1117 low dropout voltage regulator components.)