Overview
The Shelly Plus 1 Add-On is a sensor expansion module that enhances Shelly Plus relays by enabling temperature, humidity, and environmental monitoring. It supports up to five DS18B20 sensors or one DHT22 sensor, and features both analog and digital inputs for precise data collection.
This add-on serves as a galvanically isolated sensor interface, allowing automated measurement and control for a wide range of applications. It integrates with Alexa, Google Home, Android, and iOS, and can be managed through the Shelly Smart Control app.
Key Features
• Supports up to 5 DS18B20 temperature sensors or 1 DHT22 temperature & humidity sensor
• Galvanically isolated sensor interface for accurate measurements
• 1-Wire terminals for temperature & humidity tracking
• Analog & digital inputs for advanced automation
• Compatible with Alexa, Google Home, and Shelly Smart Control app
Use Cases
Lighting Automation
• Connect motion-controlled lighting to a PIR sensor
• Lights turn on when movement is detected and stay on as needed
Smart Irrigation
• Automate watering schedules based on soil moisture levels
• Prevent overwatering by skipping irrigation on rainy days
• Recommended with Shelly Plus 1PM
Automated Awnings
• Use wind and rain sensors to automatically open or close motorised awnings
• Protect outdoor spaces from unexpected weather changes
• Recommended with Shelly Plus 2PM
Aquarium Monitoring
• Monitor aquarium and room temperature using two DS18B20 sensors
• Maintain a healthy environment for aquatic pets
• Add a liquid level sensor for automatic water level management
• Recommended with Shelly Plus 1PM
See how the Shelly Plus Add-On connects to the Shelly 1 Gen 3 to enable sensor inputs or external control. This simple add-on expands your automation options without extra complexity.
