Shelly The Pill Micro-USB to 5 Terminal Add-On Smart Controller Module
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Description
Description
Shelly The Pill Micro-USB to 5 Terminal Add-On Smart Controller Module
The Shelly 5-Terminal Add-on provides a practical connection interface between The Pill by Shelly and compatible sensors, switches and low-voltage control components. It exposes three configurable 3.3 V logic-level input/output terminals together with 5 V power and ground connections, making it easier to build monitoring, automation and prototyping solutions.
Please note: this product is an add-on interface and requires The Pill by Shelly, which is sold separately. It does not provide standalone Wi-Fi, Bluetooth or smart-control functionality.

Flexible Connections for Sensors and Controls
The five clearly identified terminals provide access to 5 V, IO1, IO2, IO3 and GND. IO1 can be configured for DS18B20 or DHT22 sensors, an analogue input from 0 to 2.5 V, or digital input and output operation. IO2 and IO3 support configurable 3.3 V logic-level digital inputs or outputs.

Key Features:
- Designed specifically as an interface accessory for The Pill by Shelly.
- Provides three configurable 3.3 V logic-level input/output connections.
- IO1 supports DS18B20 and DHT22 sensors, analogue input from 0 to 2.5 V, or digital input and output operation.
- IO2 and IO3 can each be configured as a digital input or digital output.
- Includes 5 V and GND terminals for compatible sensors or for supplying 5 V power to The Pill.
- Compact 44 × 23 × 10 mm interface with a 24 cm connection cable.
- Suitable for sensor integration, automation projects and low-voltage prototyping.
Make Buttons and Digital Sensors Smart

Connect compatible pushbuttons, reed switches, float switches and other simple digital sensors to The Pill. Changes detected by these connected devices can then be used by The Pill to support alerts, scenes, webhooks and other configured automation actions.
Control Compatible Low-Voltage Devices

The configurable digital outputs can be incorporated into suitable low-voltage projects involving components such as indicator LEDs, buzzers or compatible relay inputs. Connected loads must remain within the electrical requirements of The Pill and the selected output configuration.
Terminal Guide:
| Terminal | Description | Supported Use |
|---|---|---|
| 5V | 5 V power connection | Power output for compatible sensors or 5 V power input for The Pill |
| IO1 | Multipurpose 3.3 V logic-level input/output | DS18B20, DHT22, 0–2.5 V analogue input, digital input or digital output |
| IO2 | 3.3 V logic-level input/output | Digital input or digital output |
| IO3 | 3.3 V logic-level input/output | Digital input or digital output |
| GND | Ground connection | Reference ground for connected sensors or 0 V power connection for The Pill |
Basic Wiring Diagram

Technical Specifications:
| Specification | Details |
|---|---|
| Brand | Shelly |
| Product Name | 5-Terminal Add-on for The Pill by Shelly |
| Product Type | Sensor and control interface accessory |
| Compatibility | The Pill by Shelly |
| Terminals | 5V, IO1, IO2, IO3 and GND |
| Configurable Inputs/Outputs | 3 |
| Logic Level | 3.3 V |
| Analogue Input Range | 0–2.5 V through IO1 |
| Supported Sensors | DS18B20 and DHT22 through IO1 |
| Power Terminals | 5 V and GND |
| Interface | Add-on interface connector for The Pill by Shelly |
| Dimensions | 44 × 23 × 10 mm |
| Weight | 23 g |
| Cable Length | 24 cm |
| Colour | Black |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 40°C |
| Operating Humidity | 30% to 70% RH |
| Maximum Altitude | 2,000 m |
Expand The Pill by Shelly with accessible sensor and control terminals for your next low-voltage automation project, and add this practical interface module to your cart today.
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