intpinRelay =5;//管脚D3连接到继电器模块的信号脚(TX) voidsetup() { // 为了提供串口显示,需要设置baud Serial.begin(9600); Serial.println("start test the electric relay the circuit..."); // 这一步不能忘记 pinMode(pinRelay, OUTPUT);//设置pinRelay脚为输出状态 //注意电压问题,3.3v的引脚...
图中风扇部分电路(继电器负载部分)所标注的GND/5V 可以通过外接电源供电;也可以直接在单片机上的某对GND/VCC上。 风扇的可用性调试 风扇需要足够的电压来驱动,一般就接在5v(vcc/gnd) 但是风扇可以产生反电动势,对单片机可能造成损害,所以一般其中的一个管脚接在继电器的负载部分(您可以通过led等来调试继电器的可用...
sudo pifan stop 要重新启动守护进程,我们应该运行下一个命令: sudo pifan restart 在启动时自动启动 pifan: $ chmod a+rx /etc/init.d/pifan $ insserv pifan 安装 sudo python setup.py install 日志文件 Ddefault 日志文件位于/var/log/pifan/pifan.log 错误日志文件 默认错误日志文件位于/var/log...
Check the Raspberry PI’s IP address in your router or as described in myHow to find Raspberry PI’s IPtutorial. Then, connect to it from Putty (or whatever connection program you are using for SSH). Please remember, if required, that the default SSH port is 22. Use your Username / ...
rpi-cpu-fan:Raspberry Pi自动CPU风扇控制 Su**us上传76KB文件格式zipShell Raspberry Pi自动CPU风扇控制 动态睡眠间隔 CPU温度离阈值越远,脚本Hibernate的时间就越长。 X轴是温度,Y轴是睡眠时间。 随着温度的升高,从左到右,睡眠时间(绿线)以Y = -X/2的斜率稳定缩短。 一旦温度达到ON阈值(蓝色垂直线),便打开...
通过LAN连接Raspberry Pi 如果要将Pi与显示器一起使用,需要连接HDMI线缆和USB键盘及鼠标。 然后,在您的Pi终端输入指令“sudo raspi-config”,接下来: 然后…… 接下来 …… 如果要求重新启动,点击“OK”,然后退出raspi-config。 现在,启用RealVNC服务器,再次在Pi终端输入指令“sudo raspi-config”。
Fan Service SetupWe have a really simple fan service that will control the onboard fan. The reason we have it set up as a service instead of keeping the fan on all the time is so that it doesn't drain too much power from the Pi during the initial power on....
Raspberry Pi 3.5 Touch Screen 480*320 LCD TFT Display Optional ABS Metal Case Cooling Fan for Raspberry Pi 4 Model B or 3B+ 3B 4.7 64 ReviewsColor: Only ScreenProduct sellpoints Easy Assembly:Simple setup with GPIO pin connection, no HDMI-compatible interface required. Dual-Use Design:Offers...
git clone https://github.com/winkidney/PIFanTuner.git Or just download the zip file zipped by Github. Then enter the project directory: sudo python setup.py install Now use following command to run fan-control daemon: ➜ ~ pi-fan-tuner fan simple --debug DEBUG:root:Temperature 45.084 CP...
pieeprom-2024-12-19: 2712: Disable PWM fan at shutdown (POWER_OFF_ON_… Dec 19, 2024 f02f0ea·Dec 19, 2024 History 709 Commits .github/ISSUE_TEMPLATE bug_report template: Be more precise about the UART pins Dec 10, 2024 firmware-2711 ...