hdi

p1.5脚控制灯。 当灯点亮是，把域值增大。 光传感器通过AD转换。 使用STC12C5404AD调试通过。(P1.5 pin control lights. When the lights lit is to increase the domain value. Optical sensor through the AD conversion. Debugging through the use of STC12C5404AD.)

利用GPIO控制无源蜂鸣器发声，播放音乐。使用SysTick延时，使用位带操作寻址IO口引脚。(GPIO is used to control the voice of passive buzzer and play music. Use SysTick delay, use bit band operation to address IO pins.)

#63 直流无刷电机控制板及驱动板电路图，是我在某外企所做的一个直流无刷电机项目，采用的TI的方案，现共享出来换积分(this is a BLCD schematic,we used the TI s solution , so I share it .)

锂电池模型动力锂电池RC等效模型辨识方法双RC模型的搭建(Lithium battery model, power lithium battery, RC equivalent model identification method, double RC model)

说明：  野火官方基于OV5640解码二维码例程。单片机是F429.解码部分代码可以移植至其他IC。此库已经用在公司项目二维码门禁反扫功能上。(Wildfire officials decode two-dimensional code routines based on ov5640. The MCU is f429. The decoding part of the code can be transplanted to other IC. This library has been used in the company project QR code access control anti scanning function.)

说明：  用stm32f103控制无源蜂鸣器播放音乐(Using STM32F103 to control passive buzzer to play music)

说明：  PWM输入+DMA，亲测可用，有需要的朋友可以自行下载。(PWM input + DMA, pro-test available.)

基于芯片LPC2132的PWM_DAC基本实验(Based on the the chip the LPC2132 s PWM_DAC basic experimental)

反射式血氧（SPO2）计算，包括基线滤波，脉搏波特征点提取，R值计算，可移植到单片机（STM32）(Reflective oximetry (SPO2) calculations, including baseline filtering, pulse wave feature point extraction, R value calculation, can be transplanted to the microcontroller (STM32))

TCS3200颜色测试,读取RGB值,LCD1602显示R,G,B值(TCS3200 color test, read RGB value, LCD1602 shows R, G, B value.)