Shelly Plus AddOn

Shelly Plus Add-On is a galvanically isolated sensor interface for all Shelly Plus relays. It can be used to measure temperature and humidity by its 1-Wire terminals, or connect various analog and digital sensors for complex automation and higher efficiency. Shelly Plus AddOn is also compatible with most Arduino sensors. You can use its digital or analog inputs to measure your desired parameters and create complex automation scenes based on the sensor data. Some of the applications you can use if for are garage door position, water heating, control your lights based on luminousity, motion-controlled lights and ect.

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 :

• Size (HxWxD): 37x42x15 ±0.5 mm
• Weigh: 105 g / 3.70 oz
• Shell material: Plastic
• Color: Black
• Ambient temperature: -20 °C to 40 °C / -5 °F to 105 °F
• Operating Humidity: 30 % to 70 % RH
• Max. altitude: 2000 m / 6562 ft
• Power supply voltage DC: 3.3 V (from Shelly plus device)
• Power consumption: < 0.5 W (without sensors)
• VCC max. current: 10 mA
• VREF OUT max. current: 1 mA
• Shelly Plus Addon supporting devices: Shelly Plus 1/1PM, Shelly Plus 2PM, Shelly Plus i4/i4DC
• Temperature reading: Depends on the DS18B20 or DHT22 sensors
• Humidity reading: Depends on the DHT22 sensor
• Digital input: -15 V to 0.5 V (True) / 2.5 V to 15 V (False)*
• Analog input range: 0 to 100%
• Analog input report threshold: 1%**
• Voltmeter range: 0 to 10 V
• Voltmeter report threshold: 0.1 V**
• Analog input / Voltmeter accuracy: Better that 5%

* Logic can be inverted in the digital input settings

** Can be configured in the analog input / voltmeter settings