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HT1622数码管液晶显示器驱动程序，基于M430f149单片机，亲测可用！注意最后面的addr是地址，更改地址后，即可知道数码管亮的位置，便于编程！(HT1622 digital LCD display driver, based M430f149 microcontroller, pro-test available! Note that the last face addr is the address, change of address, you can know the position of digital tube light, easy programming!)

利用单片机定时器产生高低电位各0.5毫秒的方波，该方波再经二阶滤波变成1K赫兹的正弦波，即为音频信号(To produce high and low potential of each 0.5 ms using SCM timer Fang Bo, the square wave and then by two order filter into 1K Hz sine wave, namely for audio signal )

一个spwm计算软件源代码,可以根据需要自动生成SPWM查表数据。(A spwm calculation software source code, you can automatically generate SPWM look-up data as needed.)

通过单片机控制74hc138译码芯片的源程序，初学者还对hc138比较糊涂的可以下来看看，会有帮助的。(Through the MCU to control 74HC138 decoding chip of the source, for beginners to hc138 confused can down to have a look, will help.)

CASIO350TL计算器的说明书，按键的基本功能可以实现。(CASIO350TL calculator specification, basic function keys can be achieved.)

三菱PLC模拟量输出,三菱PLC模拟量输出三菱PLC模拟量输出三菱PLC模拟量输出三菱PLC模拟量输出(Mitsubishi PLC analog output, analog output Mitsubishi PLC Mitsubishi PLC Mitsubishi PLC analog output Analog output Mitsubishi PLC analog output)

数字单线温度传感器DS18b20程序代码(dS18b20 code)

单片机用c语言编写的快速傅里叶变换，简单快速(Singlechip with c languages Fast Fourier Transform, EASY Express)

说明：  通过温度传感器获得温度值，并设定温度值，在温度值大于设定值时，单片机驱动风扇，降温。(The temperature value is obtained by temperature sensor, and the temperature value is set. When the temperature value is greater than the set value, the single chip computer drives the fan to cool down.)

STC12C5A60S2 IIC读取EEPROM：I2C读取E2PROM(STC12C5A60S2 IIC reading EEPROM: I2C read E2PROM)