▍1. Components
zigbee无线定位系统的相关程序代码。很有用 都有相关解释(zigbee location code)
zigbee无线定位系统的相关程序代码。很有用 都有相关解释(zigbee location code)
STMF407驱动超声波传感器测距并将距离显示在LCD12864上(STMF407 drives ultrasonic sensors to range and display the distance on the LCD12864)
于市售 STM32 开发板上实现特定人语音识别处理项目。识别流程是:预滤波、ADC、分帧、端点检测、预加重、加窗、特征提取、特征匹配。端点检测(VAD)采用短时幅度和短时过零率相结合。检测出有效语音后,根据人耳听觉感知特性,计算每帧语音的 Mel 频率倒谱系数(MFCC)。然后采用动态时间弯折(DTW)算法与特征模板相匹配,最终输出识别结果。先用Matlab对上述算法进行仿真,经数次试验求得算法内所需各系数的最优值。而后将算法移植到 STM32 开发板上,移植过程中根据 STM32 上存储空间相对较小、计算能力也相对较弱的实际情况,对算法进行优化。最终完成于 STM32 微处理器上的特定人语音识别系统。(Implement speech recognition processing project in commercially available STM32 development board. Identification is the process: pre-filter, ADC, framing, endpoint detection, pre-emphasis, windowing, feature extraction, feature matching. Endpoint detection (VAD) short-time amplitude and short-term zero rate combined. After detecting an effective voice, according to the characteristics of human auditory perception, calculated for each frame of speech Mel Frequency Cepstral Coefficients (MFCC). Then dynamic time warping (DTW) algorithm and feature template matches the final output recognition result. First with Matlab simulation algorithm described above, after several trials to get the optimal value of each coefficient within the desired algorithm. The algorithm will migrate to STM32 development board, the porting process according to the STM32 relatively small storage space, computing power is relatively weak situation of the optimization algorithm. Finally completed on the STM32 micr)
最新最全的二条码编码资料大全,全面介绍如何制作PDF417、QrCode、DataMatrix、Hanxin等条码制作方法,有详细图文说明,有了此文档,编码无忧。(The latest and most complete the two yards encoding information Daquan, comprehensive introduction to how to make the PDF417, QrCode, DataMatrix, Hanxin barcode production methods, with detailed captions, this document encoding worry-free.)
基于STM32的计算器,用数码管显示的,实现了基本的加减乘除,功能还有待扩展(STM32-based calculator, digital display, to achieve the basic addition and subtraction, multiplication and division, functions have yet to be extended)
基于STM32的计算器,用数码管显示的,实现了基本的加减乘除,功能还有待扩展(STM32-based calculator, digital display, to achieve the basic addition and subtraction, multiplication and division, functions have yet to be extended)
msp430单片机通过产生PWM波控制舵机(msp430 microcontroller to generate the PWM wave control servos)
基于MSP430舵机控制程序,SG90舵机,由PWM进行控制(MSP430-based steering control procedure, SG90 servos controlled by the PWM)
基于MSP430舵机控制程序,SG90舵机,由PWM进行控制(MSP430-based steering control procedure, SG90 servos controlled by the PWM)
基于MSP430FE427单片机的RS485源码,485没有使能端,利用串口助手2.1,发一组数据被单片机接受后返回。完全符合645协议,其中数据域接受时减0x33,发送时加0x33。所以收到的数据效验码与发送的会不同。(RS485-based SCM MSP430FE427 source, 485 is not enabled client, using assistant serial 2.1, the one set of data has been accepted to return to single-chip microcomputer. In full compliance with the 645 agreement, which the data field accepted by 0x33, sent plus 0x33. Therefore, the data received and sent well-tested code will be different.)
用stm32f103单片机计算农历,输出公历时间等完美的程序。(Using stm32f103 calculate the lunar calenda. )
说明: 测距超声波探头制作资料,含原理图和PCB图。(Fabrication Data of Ranging Ultrasound Probe)
说明: STM32+RC522+充值+扣款+改密码+开锁(STM32 + rc522 + recharge + deduction + change password + unlock)
利用stm32上自带的ad和da进行模数和数模转换实验(Use the built-in ad and da stm32 analog to digital and digital to analog conversion experiments)
51单片机设计的 15公里LORO无线传输程序(51 MCU designed 15 km LORO wireless transmission program)
读取ms5803传感器的各项数据,用串口将数据打印(Read the data of the ms5803 sensor and use the serial port to print the data)
锁相环源程序,基于stm32的控制,开发环境用keil5,(Phase locked loop source program, based on STM32 control, development environment with keil5,)
温度传感器DHT22的检测程序,在1602液晶上显示当前环境温度及湿度,精确度0.1,误差范围为2HR ,0.4C(DHT22 temperature sensor detection program that displays the current ambient temperature and humidity, the accuracy of 0.1, the error range is 2HR , 0.4C in 1602 on LCD)