Shelly Plus AddOn

Discover the Shelly Plus AddOn - a versatile and precise sensor interface for your Shelly Plus relays. With the Shelly Plus AddOn, you can connect up to five DS18B20 temperature sensors or one DHT22 sensor for temperature and humidity measurements. The Shelly AddOn is delivered without sensors, which must be ordered separately. Thanks to the galvanic isolation and compatibility with most Arduino sensors, you can connect your sensors safely and flexibly. Use the analog and digital input to capture various parameters and create complex automations for maximum efficiency. For example, you can use the digital input to monitor the status of your garage door with a reed switch sensor to ensure it's always closed. Or connect the Shelly Plus AddOn with a Shelly PM relay and a temperature sensor to optimally control the energy demand for your water heater and automatically switch it off once the desired temperature is reached. Use the Shelly Plus AddOn for diverse applications and enjoy precise measuring and control in your smart home.

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Features:

Versatile sensor connectivity, e.g., DS18B20 or DHT22.
Safety: Galvanic isolation of the interface.
Supports a wide range of Arduino sensors.
Flexibility through analog and digital inputs.
Seamless integration of your sensors - perfect for your smart home.

Documentation and Downloads for the Shelly Plus AddOn:

Technical Details:

Manufacturer: Allterco
Color: Black
Power Supply DC: 3.3 V (from Shelly Plus device)
Device Power Consumption: < 0.5 W (without sensor)
Output Ratings:
VCC Max Current: 10 mA
VREF OUT max. current: 1 mA
Supported Shelly Plus Addon Devices: Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC
Temperature Measurement: Dependent on DS18B20 or DHT22 sensors
Humidity Measurement: Dependent on DHT22 sensor
Digital Input: -15 V to 0.5 V (True) / 2.5 V to 15 V (False)
Analog Input Range: 0 to 100%
Threshold for Analog Input Reports: 1%
Voltmeter Range: 0 to 10 V
Threshold for Voltmeter Reports: 0.1 V
Analog Input / Voltmeter Accuracy: Better than 5%
Operating Temperature: -20 °C to 40 °C
Humidity: 30 % to 70 % RH
Max. Altitude: 2000 m
Dimensions: 37 x 42 x 15mm
Weight: 27g