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New Wi-Fi Solutions for IoT

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The Atmel® Smart Plug is a reference design targeting any secure Internet of Things (IoT) design. It contains all the core functionality required for a secure Internet-connected product. The Smart Plug is a Wi-Fi-enabled power plug that can be controlled in three ways: locally using the capacitive touch button, using a mobile App with Wi-Fi connection (with or without cloud), or using on/off timing scheduled via a mobile App. The design is based on the Atmel SmartConnect ATSAMW25 module, as well as an ECC508A crypto device, to realize ARM® Cortex®-M0+ microcontroller (MCU) processing, Wi-Fi connection, Atmel CryptoAuthentication™ with ultra-secure hardware-based key storage and Atmel QTouch® capacitive touch buttons. It also features the ATM90E26 device, which is a sensor for energy metering functions. Three models are available: US, EU and Chinese standards.

This design targets an Atmel Cloud (by Proximetry) version, which allows control of the unit through a mobile app and through the Atmel Cloud. Two other firmware variants are available: One with cloud integration for the Chinese market using the JD Smart Cloud solution, and one cloudless version, which allows control of the unit through a local Wi-Fi network. Note that all hardware options supports all versions of the firmware.

Block Diagram

Atmel SMART:

Atmel cloud portal on Proximetry:

Mobile Apps:

  • Android app for local Wi-Fi control (Download from Google Play)
Reference Design - Smart Plug with Proximetry CloudReference Design - Smart Plug with Proximetry Cloud

Key Features

  • Proximetry connectivity solutions with low footprint Agent library and SDK
  • Proximetry AMP v2.6 protocol optimized for low bandwidth and lossy sensor networks
  • Automatic device registration
  • Remote control, scheduled control, and group operation with the Cloud
  • Mutual authentication with the Proximetry Cloud using X.509 certificates
  • Device sensors data collection and UI for browsing historical data on graphs

Ordering Code Atmel Store Availability1 Unit Price2 Buy Online

1Backlog orders can be placed for items currently not available.
2Suggested retail price per unit for budgetary use only.


ATSMARTPLUG-CN: China (type I), ATSMARTPLUG-EU: EU (type F), ATSMARTPLUG-US: US and Canada (type B)