The Shelly Plus Add-On provides a wide range of applications and is compatible with many types of Arduino sensors. It offers both digital and analog inputs for precise measurement of parameters, allowing for the creation of sophisticated automation scenes based on the sensor information. SHELLY-PLUS-ADDON Sensor Interface Features: Compatible with most Arduino sensors Galvanically isolated sensor interface for all Shelly Plus relays Connect various analog and digital sensors for complex automation Provides a 1-wire interface for easy connectivity Enables garage door position monitoring Keeps you informed about the water heating status Allows you to control lights based on the luminosity Facilitates an awning that follows weather conditions Enables efficient irrigation only when needed Supports motion-controlled lights Compatible with Alexa, Google Home, Android, and iOS for convenient voice assistant control. SHELLY-PLUS-ADDON Sensor Interface Specifications: PHYSICAL Size (HxWxD): 37x42x15 ±0.5 mm / 1.46 x 1.65 x 0.59 ±0.02 in Weight: 105 g / 3.70 oz Shell material: Plastic Color: Black ENVIRONMENTAL Ambient temperature: -20 °C to 40 °C / -5 °F to 105 °F Humidity: 30% to 70% RH Max. altitude: 2000 m / 6562 ft ELECTRICAL Power supply voltage AC: N/A Power supply voltage DC: 3.3 V (from Shelly plus device) Power consumption: < 0.5 W (without sensors) OUTPUT CIRCUITS RATINGS VCC max. current: 10 mA VREF OUT max. current: 1 mA SHELLY PLUS DEVICE FIRMWARE CAPABILITIES 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 than 5%
