C8051F34

说明：  使用STM32实现AD8803的adc电压输出(ADC Voltage Output of AD8803)

stm32产生多路pwm源码，定时器1产生4通道独立的pwm信号(Stm32 produce multiplex PWM source, timer 1 to generate 4 channel independent of the PWM signal)

汽车安全与防盗最初的电子化开始于1994年的引擎防盗(IMMO)，恩智浦半 导体(当时的飞利浦半导体)作为第一家半导体公司把RFID的电子标签技术成功 的应用于汽车电子引擎锁：通过汽车与钥匙间的125kHz的无线通讯实现电子身 份识别，来判断启动汽车引擎。这一技术极大的提高了汽车的安全性，很快就在 欧洲以及北美地区广泛应用，并在短短几年时间内使欧洲的汽车失窃率大幅降低 了90 ，因而成为整个欧洲的汽车标准配置(Automotive safety and anti-theft electronic originally began in 1994, engine anti-theft (IMMO), NXP (then Philips Semiconductors) as the first semiconductor company to RFID electronic tag technology successfully used in automotive electronic engine lock: By car keys between 125kHz and wireless communications for electronic identification, to determine start the car engine. This technology greatly improves the car' s safety, soon in Europe and North America, widely used, and in a few years time so that European auto theft rate significantly reduced by 90 , and thus the entire European automotive Standard configuration)

通过定时器控制pwm输出，进而控制电机舵机的转动。(The output of PWM is controlled by a timer, and then the rotation of the motor steering gear is controlled.)

STM32F1、F4电机PWM调速及PID速度闭环控制(PWM Speed Regulation and PID Speed Closed-loop Control of STM32F1 and F4 Motors)

RC522 IIC驱动程序，可实现读卡和写卡功能，复旦卡或M1卡都可以，本人也试过读公交卡，可以读出序列号和卡类型。(RC522 IIC driver, can read card and write card function, Fudan card or M1 card can, I also tried to read the bus card, you can read the serial number and card type.)

说明：  采用定时器，及单片机TM4C123G的PWM模块，产生SPWM波，且波表无需额外生成(The timer is used, and the PWM module of the single chip TM4C123G generates the SPWM wave, and the wave table does not need to be additionally generated.)

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)

C51音乐程序(八月桂花) [功能] 通过单片机演奏音乐 //本例采用89C52, 晶振为11.0592MHZ //关于如何编制音乐代码, 其实十分简单,各位可以看以下代码. //频率常数即音乐术语中的音调,而节拍常数即音乐术语中的多少拍 (C51 music program (August Osmanthus) [function] through Singlechip music// this case, using 89C52, crystal for 11.0592MHZ// on how to prepare music code is actually very simple, you can see the following code.// Frequency music terminology that is constant in tone, and the beat of music terminology that is constant in the number of pictures)

智能台灯系统，实现了语音播报，自动调光，远程控制，灯光切换等智能系统功能。克服了传统台灯供电方式单一等多种特点。本系统主要由单片机控制系统和硬件系统组成，主要由STM32F407微处理器、触控液晶彩屏、ADC电压监控、超声波测距监测、音乐播放系统、灯光控制组件和多路系统电源构成。智能学习台灯采用PWM数字调光和超声波测距技术以及人体红外感应技术，实现灯光亮度和模式调节。(Intelligent desk lamp system realizes the functions of voice broadcasting, automatic dimming, remote control, light switching and other intelligent systems. It overcomes many characteristics such as single power supply mode of traditional lamp. This system is mainly composed of single chip computer control system and hardware system. It is mainly composed of STM32F407 microprocessor, touch LCD color screen, ADC voltage monitoring, ultrasonic ranging monitoring, music playing system, light control module and power supply of multi-channel system. Intelligent learning desk lamp uses PWM digital dimming and ultrasonic ranging technology as well as human infrared sensing technology to achieve light brightness and mode adjustment.)