Shelly The Pill Compact Wi-Fi Bluetooth Sensor Hub with USB-C

The Shelly The Pill is an ultra-compact multifunction sensor hub with Wi-Fi and Bluetooth connectivity, powered by USB-C with 5 V. With dimensions of only 26 × 19.95 × 8.5 mm and a weight of just three grams, the device fits into almost any space-constrained environment. The sensor hub supports plug-and-play compatibility with external DS18B20 temperature sensors, allowing up to five sensors to be connected simultaneously, as well as DHT22 temperature and humidity sensors. Additionally, the device offers configurable digital inputs and outputs with 3.3 V logic levels and an integrated voltmeter input for voltages from 0 to 2.5 V. The range of functions can be expanded with optional add-ons, such as the Analog 0-30 V Add-on for battery monitoring or the SSR Add-on for controlling DC loads up to 30 V and 300 mA. The Shelly The Pill is based on the Gen3 platform and supports local actions, schedules, scripting, and virtual components. The device also functions as a Bluetooth gateway for Shelly BLU devices and enables integrations via MQTT, WebSocket, and HTTP. Setup is conveniently accomplished through the Shelly Smart Control App or the integrated web interface.

Recommended Accessories:

• Shelly Pill Splitter 1 to 5 1-Wire Junction Cable with 3.5mm Jack
• Shelly Pill SSR Add-on - Dual-Channel Solid-State Relay for DC Loads
• Shelly Pill 5-Terminal Add-on Interface Module for Sensors and I/O Expansion
• Shelly Pill Analog 0-30 V Add-on Voltage Measurement for Batteries and Analog Sensors

Features:

• Ultra-compact design with only 26 × 19.95 × 8.5 mm allows integration into the tightest installation spaces.
• Dual connectivity via Wi-Fi 802.11 b/g/n and Bluetooth Low Energy 4.2 for flexible networking.
• Plug-and-play support for DS18B20 temperature sensors and DHT22 humidity sensors without additional configuration.
• Shelly Gen3 platform with scripting, local actions, and virtual components for comprehensive automation.
• Bluetooth gateway function enables integration of Shelly BLU devices into the network.
• Expandable with add-ons for voltage measurement, SSR relay control, and additional I/O connections.

Application Examples:

• Monitoring water temperature in aquariums, pools, and water tanks with up to five measurement points
• Monitoring temperature and humidity in server rooms, greenhouses, and warehouses
• Connecting digital sensors like door contacts, motion detectors, or water level sensors
• Battery monitoring for 3.7 V, 12 V, or 24 V systems with the optional Analog 0-30 V Add-on
• Controlling low-voltage loads such as LED displays, fans, or solenoid valves

Documentation:

• Shelly Knowledge Base
• Shelly Forum

Technical Data:

• Manufacturer: Shelly
• Manufacturer SKU: Shelly_Pill
• Model Number: S3SN-0U53X
• EAN: 3800238073558
• Power Supply: 5 V DC via USB-C
• Power Consumption: < 1 W
• MCU: ESP-Shelly-C38F (ESP32 C3)
• Flash Memory: 8 MB
• Wi-Fi: 802.11 b/g/n, 2401–2483 MHz, max. 20 dBm
• Bluetooth: BLE 4.2, 2402–2480 MHz, max. 10 dBm
• Wi-Fi Range: up to 30 m indoors, 50 m outdoors
• Bluetooth Range: up to 10 m indoors, 30 m outdoors
• External Sensors: 1× DHT22 or up to 5× DS18B20
• Voltmeter (integrated): 0–2.5 V DC
• Voltmeter (with Add-on): 0–30 V DC
• Voltmeter Accuracy: ±(2% + 5d)
• Digital Inputs: 3.3 V Logic Level, Active Low
• Digital Outputs: 3.3 V, max. 20 mA
• Schedules: 20
• Webhooks: 20 with 5 URLs each
• Scripting: Yes
• MQTT: Yes
• Operating Temperature: -20 to +40 °C
• Humidity: 30–70 % RH
• Housing Material: Plastic
• Housing Color: White
• Product Dimensions: 26 × 19.95 × 8.5 mm
• Product Weight: 3 g
• Packaging Dimensions: 110 × 65 × 23 mm
• Gross Weight: 17 g

Scope of Delivery:

• 1× Shelly The Pill
• 1× Cable Adapter 3.5 mm Jack