pci

Memory extends Preference Activity implements On Cancel Listener.

说明：  stm32f103c8t6驱动DS18B20温湿度传感器程序源码(stm32f103c8t6,DS18B20)

七、 虚拟信号采集分析器 1）：利用信号发生器产生不同信号（信号的相关参数可调） 2）：在信号上叠加白噪声。 3）：对上述信号进行采样（采样频率可调） 4）：在采样的过程中利用均值滤波（每三个点取均值） 5）：显示采样后的波形，并对其进行频率分析。 6）：将采样后的波形与原波形做比较（在同一坐标系中显示） (Seven, the virtual signal acquisition Analyzer 1): different signals generated by the signal generator (signal correlation parameters adjustable) 2): white noise superimposed on the signal. 3): the said signal is sampled (sampling frequency adjustable) 4): In the process of sampling using the mean filter (averaging three points each) 5): Show the sampled waveform and its frequency analysis. 6): the sampled waveform is compared with the original waveform (shown in the same coordinate system))

数码管动态显示，单片机学习者的很好的学习资料 (Dynamic display of digital control, microcontroller good learners learning materials)

说明：  ad9854，具备扫频功能，适合8051(AD9854, sweep function, suitable for 8051)

说明：  stm32 串行flash 挂fatfs(fatfs for stm32 and spi flash)

This example describes how to configure the HT32_system.(This example can run on HT32F175x/275x Development board.)

超声波测距资料(HC-SR04)_TB参考文档及原理图源程序(Ultrasonic Ranging Data (HC-SR04) _TB reference documentation and schematic source)

320240触摸绘图程序，查询方式和中断方式两种测试例程(320240 touch drawing program, query way and interrupt way two test routines)

采用stm32控制sx1276实现Lora远距离通信(Using STM32 to control sx1276 to realize Lora long-distance communication)