Vending_machines

MCF52255核心开发资料，一些简单的寄存器操作，能够完成一些比较简单的功能。(MCF52255 core development information, some simple register operations, able to complete some of the more simple functions.)

交通信号灯控制，可以调红绿黄灯时间，有紧急模式和夜间模式( Traffic lights control, you can adjust the red and yellow light time, emergency mode and night mode)

Ultrasonic range finder based on STM32F103

基于MSP430F5438A的AD9854驱动，AD9854的DDS核具有48位的频率分辨率（在300M系统时钟下，频率分辨率可达1uHZ）。输出17位相位截断保证了良好的无杂散动态范围指标。AD9854允许输出的信号频率高达150MHZ(Based on the AD9854 driver of MSP430F5438A, the DDS core of AD9854 has a frequency resolution of 48 bits (up to uHZ at 300 M system clock). Output 17-bit phase truncation ensures a good dynamic range index without spurious. AD9854 permits up to 150 MHZ of output signal frequency)

利用被动传感器坐标位置及测角误差 计算两站及多站无源测向交叉定位的精度矩阵 (The use of passive sensor coordinate position and angle measurement error calculation two stations and multi-station Passive Direction Finding Cross positioning accuracy matrix )

说明：  这是采用stm32L151主芯片驱动NB做云端通信，采用GPS定位。和采集温度。加震动检测。休眠状态达到9umA。(This is the use of stm32L151 main chip to drive NB for cloud communication and GPS positioning. And collection temperature. Add vibration detection. The sleep state reaches 9umA.)

2440的原理图，sch格式的，非PDF，欢迎下载(2440 schematic diagram, sch format, not PDF, welcome to download)

说明：  利用LTC6802结合stm32检测24芯锂电池电压以及电池温度，还可以实现放电平衡(Test 24 core voltage and temperature)

基于单片机的ECG数据采集与预处理 本课题首先介绍了心电信号检测电路的设计，给出了心电信号采集电路具体的设计方法与部分实现电路。并采用了线性光电耦合器放大电路，对前置级运算放大电路及后置级放大电路进行光电隔离，有效地抑制了各种干扰。 其次，主要进行基于AT89C52低功耗MCU的便携式心电监护仪及其系统的研究。 根据人体心电信号的特征，设计性能优良的心电信号采集系统，选用低功耗8位单片机AT89C52和大容量Flash存储器对采集的心电信号进行记录、分析及处理(MCU-based ECG data acquisition and pre-treatment of the subject introduced first ECG detection circuit design, are given specific ECG acquisition circuit design method and some realization of the circuit. And the use of a linear optocoupler amplifier, the pre-amplifier circuit-level operations and post-class amplifier circuit for photoelectric isolation, effectively a variety of interference suppression. Secondly, AT89C52 mainly low-power MCU-based portable ECG monitor their systems. ECG in accordance with the characteristics of the human body, the design performance of the ECG acquisition system, selection of low-power 8-bit MCU AT89C52 and large-capacity Flash memory on the acquisition of the recorded ECG, analysis and processing)

说明：  中级和高级例程我们会不断更新，此例程主要结合实际开发给用户提供一些实实在在的例程。 程序仅供参考，如有问题可参考基础实验例程内的一些基础程序理解。只要将基础例程学习好，中级和高级都是在此基础上扩展的。本公司不对此部分内容技术支持。(Intermediate and advanced routines will be constantly updated, this routine mainly combined with practical development to provide users with some real routines. The program is for reference only. If you have any questions, you can refer to some basic programs in the basic experimental routine. As long as the basic routines are well studied, both intermediate and advanced levels are extended on this basis. The company does not provide technical support for this part of the content.)