The Pill by Shelly
What is The Pill by Shelly?
Compact USB-C powered Wi-Fi and Bluetooth device that connects to various sensors and low-voltage peripherals for monitoring and control of temperature, humidity, voltage, and digital I/O.
- Dual connectivity: Wi-Fi and Bluetooth for versatile communication
- USB-C powered for safe and easy 5 V installation in any environment
- Built-in Bluetooth Gateway for nearby device communication
- Shelly Gen3 functionality with local actions, scripting, and virtual components for full automation control
- Sensor reader for temperature, humidity, and environmental data with cloud logging and statistics
- Advanced automation and integration via MQTT, WebSocket, HTTP, and virtual devices
- Expandable design through add-ons for digital I/O, analog sensing, and high-accuracy voltage measurement
- Configurable peripheral modes supporting a broad range of external modules and extensions
- High-accuracy analog measurement for reading DC voltages up to 30 V with the external add-on
- Three configurable digital I/Os for direct logic-level control and system interfacing
Features
Extremely small and lightweight device
Mount it inside enclosures, behind panels, or integrate it within other devices thanks to its compact size.
USB-C powered
Save power and enable low-voltage environmental monitoring with a compact design suitable for always-on deployment. No heavy energy consumption.
Bridging peripherals to home automations
Enable The Pill by Shelly to connect peripheral devices to your automation platform and expand system behavior and control.
Acts as Bluetooth Gateway
Use The Pill by Shelly as additional gateway device for all Shelly BLU series devices.
Mulitple input/output types support
Take advantage of up to three independently configurable logic-level inputs or outputs and voltage ranges for versatile integration.
Analog sensors monitoring
Connect 0-5V analog sensors for accurate readings of light, soil moisture, and other environmental parameters to enhance automation capabilities with an external add-on.
Use Cases
Water Temperature Monitoring
Monitor aquariums, pools, boilers, water tanks, or other liquids with precise temperature readings. The Pill by Shelly connects to your water temperature sensors and sends real-time data to the Shelly Smart Control app. Use it to automate heating systems – when the temperature drops, you can trigger pumps or heaters to maintain optimal conditions. Ideal for stabilizing aquatic ecosystems, keeping pool water comfortable, and improving energy efficiency.
Air & Greenhouse Climate Monitoring
Whether you’re maintaining a healthy indoor environment or creating optimal conditions for plant growth, The Pill by Shelly delivers accurate temperature and humidity data using the DS18B20 or DHT22 sensors. Real-time measurements in the Shelly Smart Control app help you automate HVAC systems, thermostats, humidifiers, or greenhouse ventilation. Keep living spaces comfortable and ensure stable conditions for your plants – all with one compact monitoring hub.
Voltage Monitoring for Battery Systems
In small battery-powered setups, even slight voltage changes can affect performance and reliability. With the Analog Add-on, The Pill by Shelly connects to your voltage sensors and gives you accurate real-time readings – whether it’s 3.7V, 4.2V, 12V, 24V, or other low-voltage sources. The moment levels shift, data reaches your Shelly Smart Control app, helping you react before power issues occur. Keep your batteries, UPS units, and backup systems stable and running longer.
Caution
Installation of certain Shelly devices must be done by a qualified electrician or authorised installer.
Internal Schematics
Specifications
Physical | |
Size (HxWxD): |
26 x 19.95 x 8.5 mm / 1.02 x 0.79 x 0.34 inch |
Weight: |
3 g / 0.11 oz |
Shell material: |
Plastic |
Shell color: |
White |
Environmental | |
Ambient working temperature: |
-20 °C to 40 °C / -5 °F to 105 °F |
Humidity: |
30 % to 70 % RH |
Electrical | |
Power supply: |
5 V⎓ (from USB Type-C port) |
Power consumption: |
< 1W |
Input circuits ratings | |
Digital inputs triggering voltage: |
Active LOW; Trigger low: < 0.83 V Trigger high: > 2.48 V |
Digital inputs max. voltage |
3.3V |
Output circuits ratings | |
Max. switching voltage: |
3.3 V (logic-level) |
Max. switching current: |
20 mA |
Sensors, meters | |
Voltmeter (DC) |
0 V - 2.5 V (Built-in) 0 V - 30 V (Requires external Addon) |
Voltmeter accuracy: |
±(2% + 5d) |
Internal-temperature sensor: |
No |
External sensors supported: |
single DHT22 up to five DS18B20 |
Wi-Fi | |
Protocol: |
802.11 b/g/n |
RF band: |
2401 - 2483 МHz |
Max. RF power: |
< 20 dBm |
Range: |
Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
Bluetooth | |
Protocol: |
4.2 |
RF band: |
2402 - 2480 МHz |
Max. RF power: |
< 10 dBm |
Range: |
Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors |
Microcontroller unit | |
CPU: |
Shelly ESP32 C3 (ESP-Shelly-C38F) |
Flash: |
8 MB |
Firmware capabilities | |
Schedules: |
20 |
Webhooks (URL actions): |
20 with 5 URLs per hook |
Scripting: |
Yes |
MQTT: |
Yes |
Encryption:: |
Yes |
Other: |
Supported Accessories: Cable adapter - 3.5mm Jack (incl. in the package) Spliter 1 to 5 - 3.5mm Jack Temeprature sensor DS18B20 - 3.5mm jack Supported add-ons: 5-terminal Add-on SSR Add-on Analog 0-30V Add-on |
Download the Shelly Cloud app for Android and iOS
