nRF24Z1_PPS_rev3_1

心率监测；AT89C51单片机；光电传感器(Heart rate monitoring; AT89C51 single chip microcomputer; photoelectric sensor)

说明：  SI4463 测试可用 只需要自己更改si463的管脚就可以(The SI4463 test is available by changing the pin of the si463 itself)

msp430 LCD12864 test program, beginners essential for college students SCM contest entry procedures, enclosing the source, and Chinese comments

STM32采用TIM1的PWM输出，控制直流无刷电机 上传一个基本初级版的程序 PA8 PA9 PA10 PB13 PB14 PB15是PWM输出口 PC5接个电位器调节速度 PB12电源指示灯 PB5正转指示 PB2反转指示 PB0按键开机 PB1按键正反转 宏定义DEBUG可以软件仿真（DEBUG用来开启相关变量，以及变换霍尔相序）(Finally realized TIM1 PWM output, brushless DC motor control Upload a basic junior version of the program PA8 PA9 PA10 PB13 PB14 PB15 is the PWM output PC5 then adjust the speed potentiometer PB12 power indicator PB5 forward instructions PB2 reverse directions PB0 button boot Reversible buttons PB1 DEBUG macro definitions can be software emulation (DEBUG to open the related variables, as well as Hall phase transformation sequence))

128KHzID卡读卡模块程序，带模块原理图，曼切斯特解码(128KHzID card reader module program with block diagram, Manchester decoding)

最小重量机器人,可以计算最小重量的机器人，由好多不同的零件组成(zuixiao)

说明：  51网站上下载的利用蓝牙控制小车和舵机的程序，可实现蓝牙控制舵机(The program downloaded from website 51 that uses Bluetooth to control the car can realize Bluetooth to control the car.)

GC0111 是格科微电子（上海）有限公司2010 年最新研发的一款SOC 芯片， 将Sensor 和协处理器整合到了一颗芯片中，能实现的功能包括：支持EMI 接口 的sensor 预览/拍照/录像、SPI 接口的sensor 预览/拍照/录像、USB1.1 / USB2.0 full speed、 JPEG 压缩以及提供软T 卡、软Touch panel 的全套解决方案。GC0111 使得MTK 6223D/Infineon ULC3 等低端平台加一颗sensor 变成多媒体手机，降 低客户成本。 GC0110 是格科微电子（上海）有限公司最新推出的支持SPI 协议的CMOS 图像传感器芯片，采用GalaxyCore 最新的传感器工艺，并优化了电路结构，支 持JPEG 压缩，缩短拍照速度，提高用户体验，并支持录像功能。 (GC0111 is Geke Microelectronics (Shanghai) Co., Ltd. 2010, the latest development of a SOC chip Sensor and co-processor will be integrated into a single chip, to achieve the features include: support for EMI Interface The sensor Preview/photo/video, SPI interface sensor Preview/photo/video, USB1.1/USB2.0 full speed, JPEG compression and to provide soft-T card, soft Touch panel the full set of solutions. GC0111 Makes low-end platform MTK 6223D/Infineon ULC3 add a sensor into a multimedia mobile phone, drop Low customer cost. GC0110 is Geke Microelectronics (Shanghai) Co., Ltd. support the latest CMOS SPI protocol Image sensor chip, using the latest sensor technology GalaxyCore and optimize the circuit structure, support Support JPEG compression, reducing the speed camera to improve the user experience and supports video recording. )

STM32F446RET 使用最新的cubemx 配合HAL库 这个是使用DMA printf的串口程序。。很牛逼。。。(STM32F446RET use DMA PRINFT output...is very fast...and cooll)

转换器模拟输入：高速ADC_前端设计的挑战和权衡因素.pdf(Converter analog input: High-speed ADC_ front-end design challenges and trade-offs. Pdf)