esp8266 12f,wif模块,接倾斜传感器,火焰传感器,烟雾传感器,水浸传感器,蜂鸣器。通过mqtt发布数据,并使用node-red实时获取数据,显示到页面上。并且通过邮件和页面两种方式报警。 需求如下: ①倾斜传感器:监测是否保持平衡。UI界面显示平衡度。如果不平衡,UI界面跳出弹窗信息“xxxxx!”。 ②烟雾传感器:监测是否有烟。有
1、准备材料：硬件：nodemcu、LCD1602、IIC-1602转接板 nodemcu LCD 1602 转接板连接1602 nodemcu价格 160...
1 首先打开我们的node-red主页 2 把左侧的“mqtt out”拖入编辑界面中 3 双击节点修改参数，“连接”里修改自己的MQTT服务地址 4 修改“安全”里的用户名和密码，点击“添加”5 修改“主题”和“名字”，点击完成 6 回到编辑主页面，点击右上角“部署”，看到MQTT节点已连接 7 从左侧拖入两个“inject”节点，...
如果没有安装的话，也可以直接使用yum安装，yum安装命令为：yum install -y ntpdateWindowsServer2003 +...
#步骤2设置ESP8266模块的单位名称【ESP_Easy】就是上图的【%sysname%】#这里说明这个设备只接收【ESP_...
The switch sends a on string message when it’s on; and sends a off string message when it’s off. This node will publish on the room/lamp topic. Your ESP8266 will then be subscribed to this topic to receive its messages. Edit the node properties as shown in the picture below....
IoT Home Automation With ESP8266 and NodeRed + MQTT: Everyone loves to sit on the couch and get things done with voice commands, it's like the dream come true which we have all seen in only movies or using the commercial IoT devices available in the mark
In this opportunity we will integrate our active power meter or electric consumption,Pzem-004 – Peacefairwith the IoTNode-REDintegration platform used in previous tutorials, we will use anESP8266module configured as Modbus TCP / IP slave, later we will visualize the measurements inNode- RED Dash...
The code for our ESP8266 has been made in Arduino ide based on tests with thepubsubclientlibrary And the code that generates tones through the GPIO 02 output has been added and the GPIO 0 has been configured to be activated according to the frequency of the tones. In the lower part of...
RASPBERRY PiPROGRAMMABLE controllersSYSTEMS on a chipREDUCED instruction set computersEDGE computingThis work evaluates the feasibility of integrating lowcost Raspberry pi boards and ESP8266 microcontrollers with industrial Programmable Logic Controllers (PLC) in a decentralized net...