Shelly
A Smart Home in Your Control

Make Your Home Smart and Convenient with Shelly.

Shelly is a comprehensive smart home automation system designed to bring convenience, energy efficiency, and enhanced security to your living space. With a wide range of products, Shelly allows you to control lighting, climate, appliances, and security systems through an intuitive mobile app or voice commands. Whether you want to automate your daily routines, set up custom scenarios, or remotely monitor your home, Shelly’s devices offer seamless integration and easy installation. Compatible with various smart home ecosystems, Shelly provides a reliable and flexible solution for modern home automation.

Shelly Plus 1/1PM AddOn

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Shelly Plus 1/1PM AddOn

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Code	S3800235266427
Manufacturer code	3800235266427
Availability	227 pc.
Usually ships within:	1-2 business days

14.04 €

17.13 € inc. vat

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Shelly Plus Add-on

Device identification

• Device name: Shelly Plus Add-on

Short description

Shelly Plus Add-on (the Device) is a galvanically isolated sensor interface to the Shelly Plus devices.

Main applications

• Residential

• MDU (Multi Dwelling Units - apartments, condominiums, hotels, etc.)

• Light commercial (small office buildings, small retail/restaurant/gas station, etc.)

• Agricultural (greenhouses, hotbed, nurseries, ranches, etc. )

• Government/municipal

• University/college

Future integrations

• Google

• Amazon

• Samsung SmartThings

Device electrical interfaces

Inputs

• 1 analog input: ANALOG IN

• 1 digital input: DIGITAL IN

Output

• 1 reference voltage output: VREF OUT

• 1 reference voltage through a pull-up resistor output: VREF + R1 OUT

• 2 ground terminals: GND*

1-Wire interface

• 3 sensor power supply outputs (connected to the same PCB track): VCC

• 3 sensor data terminals (connected to the same PCB track): DATA

• 3 ground terminals: GND*

• Connected to the same PCB ground layer.

Add-on interface

• Shelly proprietary serial interface to connect to a Shelly Plus device

Supported sensors

• Up to 5 DS18B20

• Single DHT22

• NTC resistors with 10 kΩ nominal resistance and β=4000 K

• Photoresistors

• PIR sensors

• Soil moisture sensors

• Ultrasonic proximity sensors

• Capacitive liquid level sensors

• Sound detectors

• Other analog sensors with 0 to 10 V output voltage

Specifications

* Logic can be inverted in the digital input settings
** Can be configured in the analog input / voltmeter settings

Basic wiring diagrams