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PIN DIAGRAM FOR TL 494. IT TELLS CLEARLY HOW TO CONNECT TL 494.

红外报警程序，利用红外发射实现自动报警，当有目标靠近，发出蜂鸣名声(Infrared alarm program)

CC2530 PWM控制，分析的相当详细。(CC2530 PWM control, analysis in considerable detail.)

说明：  红外测温芯片MLX90614底层驱动程序(MLX90614 infrared thermometer bottom of the chip driver)

R134a汽车空调循环计算 输入：蒸发温度 冷凝温度 过热度 过冷度(R134a automotive air-conditioning cycle calculation input: evaporator superheat temperature condensation temperature cooling degree)

关于大数据处理的论文，以当前流行的Hadoop为基础，提出优化MaoReduce计算模型的方法(Papers about big data processing, on the basis of the current popular Hadoop, MaoReduce calculation model optimization method is put forward)

按键控制STM32单片机输出PWN波占空比和频率可调(Key control STM32 MCU output PWN wave duty cycle and frequency adjustable)

利用PID算法控制PWM输出电压，实现串联型数控电源，通过键盘输入控制期望电压(PID algorithm to control the use of PWM output voltage to achieve tandem CNC power, through the keyboard input control voltage expectations)

说明：  采用keil软件，采用C语言编程了TCS3200颜色模块，可以利用TCS3200识别颜色(Tcs3200 color module programming)

说明：  通过使用STM32F407内部的ADC资源，开发出的一款简易版示波器，能够识别并画出波形，显示频率、幅值等要素，可以调Time ，VPP level等。代码简单易读。(By using ADC resources in STM32F407, a simple version oscilloscope is developed, which can recognize and draw waveforms, display frequency, amplitude and other elements, and adjust time, VPP level, etc. The code is easy to read.)