7Semi-RS485-Temperature-Humidity-Probe-Arduino-Library

This Arduino library provides an easy-to-use interface to communicate with 7Semi RS485 Temperature and Humidity Sensors using the Modbus RTU protocol over RS485 (via a MAX485 or compatible module).

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📦 Features

• Communicates with 7Semi RS485 Temp/Hum sensors over Modbus RTU
• Supports both temperature and humidity readings
• Allows sensor address configuration
• Works with hardware or software serial
• Plug-and-play integration with 7Semi industrial-grade RS485 sensor modules

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🔧 Hardware Required

• 7Semi RS485 Temperature & Humidity Probe
• RS485-to-TTL Converter (e.g., MAX485 module)
• Arduino-compatible board (Uno, Mega, ESP32, STM32, etc.)
• Jumper wires

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🧪 Example Wiring

RS485 Probe	MAX485 Module / compatible module	Arduino Uno
A	A
B	B
VCC	VCC	5V
GND	GND	GND

MAX485 Pin	Arduino Pin
TX	D10 (RX)
RX	D11 (TX)
RST	D2

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🚀 Getting Started

1. Installation via Arduino Library Manager

1. Open the Arduino IDE
2. Go to:
   • Sketch > Include Library > Manage Libraries… (IDE 1.x), or
   • Click the Library Manager icon 📚 in the sidebar (IDE 2.x)
3. Search: 7Semi RS485 Temperature Humidity