Key Features
3 configurable Inputs/Outputs (3.3 V logic-level)
Supports digital inputs/outputs, analog input, and temperature sensors (DS18B20, DHT22)
5 V power and GND terminals for connected devices
Compact interface for prototyping and integration
Required base module for other The Pill by Shelly add-ons
Device identification
Device name: 5-Terminal Add-on (Accessory for The Pill by Shelly)
Device model: N/A
Short description
Versatile addon, exposing The Pill hardware capabilities. Providing terminals for 3 Input/Outputs (3.3V logic-levels) and 5V power with GND reference, the Add-on makes The Pill ready to use for logic-levels Digital Input / Digital outputs, Analog input (range 0-2.5V) or Temperature Sensors (DS18B20, DHT22).
Device electrical interfaces
Inputs
1 multi-purpose Input/Output: configurable for sensors (DS18B20, DHT22), Analog input (0-2.5 V) or Digital Input/Output - IO1
2 Digital Input/Outputs (logic-level 3.3 V) - IO2, IO3
Power
Optional Power terminals - 5V, GND
Add-on interface
Add-on Interface connector forThe Pill by Shelly
Detailed inputs and outputs description
Symbol | Description | Usage |
|---|---|---|
5V | 5V Power | Power output for connected sensors or 5V Power for The Pill |
IO1 | Input/Output (logic-level 3.3V) | Configurable for: DS18B20, DHT22, Analog Input (0-2.5V), Digital Input or Digital Output |
IO2 | Input/Output (logic-level 3.3V) | Configurable for: Digital Input or Digital Output |
IO3 | Input/Output (logic-level 3.3V) | Configurable for: Digital Input or Digital Output |
GND | Ground | Ground for reference for connected sensors or 0V for Power supply for The Pill |
Physical | |
Size (HxWxD): | 44 mm x 23 mm x 10mm |
Weight: | 23 g |
Cable length: | 24 cm |
Wire colors: | Black |
Shell color: | black |
Environmental | |
Ambient working temperature: | 0 to 40 °C / 32 to 105°F |
Storage temperature: | -20°C to 40°C / -5°F to 105°F |
Humidity: | 30 % to 70 % RH |
Max. altitude: | 2000 m / 6562 ft |
What are the differences between the different generations of Shelly products?
Each new generation adds more power, memory, and features:
Gen 1 offers basic control;
Gen 2 (Plus Series, Mini Series, Pro Series) adds Bluetooth, scripting, and better security;
Gen 3 improves performance, adds Matter (starting from firmware version 1.6.0 or newer) and advanced monitoring;
Gen 4 offers multi-protocol connectivity, featuring Wi-Fi 6, Bluetooth, Zigbee, and Matter.
Can I control the device via Bluetooth?
No, the protocol is used only for device inclusion, allowing for quick and easy setup through the Shelly Smart Control app.
For bluetooth control it is required to have another Bluetooth device such as Shelly BLU Button or Shelly BLU Motion to interact.
Additionally, Shelly devices can function as a BLE gateway, bridging Shelly BLU devices to your Wi-Fi network.
Is it possible to use the device without a hub?
Yes, Shelly devices (except for Wave devices) operate independently without the need for a hub. They connect directly to your Wi-Fi network, and you can control them via the Shelly Smart Control app, web interface, or through integrations with platforms like Google Home, Alexa, Home Assistant and Samsung SmartThings.
Use cases
Make Buttons and Digital Sensors Smart
Using the 5-terminal Digital Adapter, you can connect simple switches and sensors directly to The Pill by Shelly.
Smart Control for Small Wired Devices
With the 5-Terminal Adapter, you can use The Pill by Shelly to drive simple low-voltage outputs. Connect LEDs for status signals, buzzers for alerts, or small relays that trigger other devices.