LAN DS18B20 WEB Temperature Monitor 1 meter Cable
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Randomnerdtutorials: ESP8266 DS18B20 Temperature Sensor Web Server with Arduino IDE

  ESP8266 DS18B20 Temperature Sensor Web Server with Arduino IDE – output XML data   /* This example code is in the public domain. */ #include <ESP8266WiFi.h> #include <ESP8266WebServer.h> #include <OneWire.h> #include <DallasTemperature.h> // Data wire is plugged into pin D1 on the ESP8266 12-E – GPIO 5 #define ONE_WIRE_BUS 5 // Setup a oneWire . . .

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Arduino code: Read Voltage from Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol

  Read Voltage from Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol using Arduino     Used: Eastron SDM230 Modbus Smart Energy Meter with Modbus Protocol: https://sigma-shop.com/sdm230-modbus-energy-meter.html     KMtronic DINO Board (Arduino compatible with RS485 interface): https://sigma-shop.com/web-internet-ethernet-controlled-relay-board-arduino-compatible-rs485-usb.html       Arduino code NOTE:    RS485 Control pin: 3,     SPEED 2400 /* *** KMTRONIC . . .

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KMtronic LAN WEB 8 Channel Relay board