Feb 2, 2025 · In this tutorial, we will explore the Modbus RTU protocol and learn how to implement it with Arduino to read sensor data from a slave device using RS485. To simplify and enhance our learning, we will use a humidity and temperature sensor that operates on the Modbus RTU protocol.

May 3, 2022 · I am struggling with two RS485 temperature and humidity sensors and connecting them with my arduino. Is it possible to use this: DSD TECH SH-U12 RS485 to TTL 5V Brett with MAX13487 Chip? Can you suggest something else (the senros have 4 wires)?

Sep 18, 2023 · In this guide, we will explore how to interface a Soil Moisture & Temperature Sensor with Arduino using the RS485 protocol. This setup will allow us to monitor the moisture content and temperature of the soil, which are crucial parameters for agriculture and gardening.

You need to follow these instructions to make it work: 1. You need to add the library to the Arduino IDE. 2. Upload the code. 3. When the code is uploaded, open the Serial Monitor and set the baud rate to 9600. 4. You will see the humidity and temperature. Don't forget to add this library to the Arduino IDE.

In Modbus RTU, RS-485 allows for master/slave communication, with a maximum of 247 slaves for one master. A repeater module is required in the circuit to achieve this.

Feb 7, 2025 · We will demonstrate how to implement it with Arduino to read sensor data from a slave device over an RS485 network. Our example centers on a humidity and temperature sensor operating on the Modbus RTU protocol.

Jul 19, 2019 · In this project, we are going to interface a DHT11 temperature and humidity sensor, and display the data on a 16x2 LCD. If you haven't read Project 9 for the Arduino Uno Rev3, please read that first because this covers how to interface a 16x2 character LCD in 4-bit mode.

Learn how to use temperature and humidity sensor with Arduino, how to connect DHT11 or DHT22 temperature and humidity sensor to Arduino, how to program Arduino step by step. The detail instruction, code, wiring diagram, video tutorial, line-by-line code explanation are provided to help you quickly get started with Arduino.

Mar 16, 2023 · If you have your wiring correct, then you should see a response from the sensor - assuming that the sensor address is 1 and the canned message relates to a valid address. I've hopefully tweaked the canned message for your sensor so you should get a response.

Mar 19, 2025 · In this blog, we will interface the SHT30 sensor module with an Arduino and display the temperature and humidity readings on an OLED screen. Components Required. Arduino Nano. SHT30 Digital Temperature and Humidity Sensor Module. 0.96-inch OLED Display (I2C, SSD1306) Connecting/Jumper Wires. Breadboard Arduno Nano Cable