pv_model

一个交通灯程序还有一个protel的仿真文件。(A traffic light program a protel simulation files.)

本程序实现基于单片机的自动电阻测试，包括AD芯片的使用和继电器的控制。(This procedure to achieve automatic resistance measurement based on single chip microcomputer, control and relay includes a AD chip.)

使用Cypress的Cy7C68013A芯片进行设计，实现Slave FIFO模式的数据采集。程序包括USB固件程序以及主机程序。(Using Cypress' s Cy7C68013A chip design, data acquisition Slave FIFO mode. The program includes a USB firmware and host program.)

可应用按键实时改变pwm输出占空比，同时有端口进行相应的pwm捕获。相应的端口配置在程序注释处。(It can change the duty cycle of PWM output in real time by using keys, and at the same time, it has ports to capture the corresponding pwm.)

数字累加器，可键盘输入，也可鼠标操作。是初学者的练习，不要见笑了(Digital accumulator keyboard input, but also the mouse. A beginner' s exercise, do not laugh at the)

简单的音乐盒，可以播放音乐，并且有花样灯进行闪烁，是个不错的小礼物。(music box )

MLX90614_430非接触式红外温度传感器，代码亲测有效可用正常使用 MSP430G2553(MLX90614_430 non-contact infrared temperature sensors, the code effective pro-test available normal use MSP430G2553)

介绍如何简单可靠而方便测量 4～20mA 信号的文章。许多仪器仪表在远距离传送信号时，都有可能采取 4～20mA 的方式进行传送。本文对使用运算放大器或者不用运算放大器的场合都有介绍。给出了接口电阻的计算方法以及调整4mA＝零点，20mA＝满度的详细说明。并附有局部连接的原理图。(How simple, reliable and convenient measurement of 4 ~ 20mA signal article. Many instruments in the long-distance signal transmission, may take 4 ~ 20mA way transmission. In this paper, an operational amplifier or op amp do not have a description occasions. Shows the calculation of the interface resistance and adjust the 4mA = zero, 20mA = full scale details. Local connections together with the schematic.)

说明：  STM32驱动74HC5958片级联64路(74hc5958 cascaded 64 way)

说明：  nrf52840驱动编写，芯片驱动，芯片手册 嵌入式单片机硬件编程单片机开发 蓝牙协议栈(nrf52840 driver preparation, chip driver, chip manual Embedded MCU hardware programming MCU development)