px4flow

说明：  ATSHA204A加密芯片详细使用方法！(ATSHA204A encryption chip detailed use method!)

实时水流加热，可控水温的温度，经过水流量来精确控温无过冲热，温控精度高(heat flow watter!)

TCS3200传感器捕获方波频率，可以根据频率变化识别外部光源颜色(TCS3200 sensor to capture a square wave frequency, the frequency change can identify the external light source color)

主要实现了STM32F10X的串口dma，实现了flash操作；并且 直接可以编译运行;(It mainly implements the serial port DMA of STM32F10X, realizes flash operation, and compiles and runs directly.)

BLDC控制程序,使用方波控制,带有PID调节.使用dsPIC30F3010控制.(A program to control BLDC motor.Square wave is applied.The program includes PID function.dsPIC30F3010 mcu is the core controller.)

子带编码是一种以信号频谱为依据的波形编码方法，首先用一组带通滤波器将输入信号按频谱分开，然后让每路子信号通过各自的自适应PCM编码器（ADPCM）编码，经过分接和解码再复合成原始信号。(In sub-band coding is a waveform signal based on the spectrum coding method using a first set of band pass filters to separate an input signal spectrum, and so that each signal path through the respective adaptive PCM coder (ADPCM) encoding, after tap and then combined into the original decoding signal.)

TM1803是三通道LED（发光二极管显示器）驱动控制专用电路，内部集成有MCU 数字接口、 数据锁存器、LED 高压驱动等电路。通过外围 MCU控制实现该芯片的单独辉度、级联控制实现 户外大屏的彩色点阵发光控制。本产品性能优良，质量可靠。(TM1803 is a three-channel LED (light emitting diode display) dedicated drive control circuit, the internal MCU integrated digital interface, Data latches, LED high voltage driver circuit. Separate luminance realization of the chip through the external MCU control, cascade control is realized Outdoor big screen color dot matrix LED control. This product is excellent performance, reliable quality.)

键盘控制舵机同时会让led闪烁，适合慧净HL-1的初学者，但是没有注释(Keyboard control steering gear at the same time will make the led flashing, is suitable for the beginners, hui net- HL 1 but there is no comment)

STM32 CH376 控制USB打印机(STM32 CH376 USB printer)

3.2寸宝马LPC1768开发板LED屏的基础代码(3.2-inch BMW LPC1768 development board LED screen based code )