Grid IoT Reference Design: Connecting Circuit Breakers and Sensors to Other Equipment using Wi-Fi®
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


This reference design showcases integrating Wi-Fi® capability to enhance connectivity in grid equipment for asset monitoring using the CC3220 device, SimpleLink Wi-Fi and IoT, single chip wireless MCU with integrated network processor and applications processor. The design enables  the capability to setup a Wi-Fi network or connect to an external network, transfer data and optimize power. Data transfer scheme includes sending/receiving control, status, settings, firmware updates over the air between devices or to the cloud. Switching the device between always connected, intermittently connected, and hibernate mode optimizes power consumption for grid applications.

  • Wi-Fi Connectivity: Wi-Fi radio with integrated network processor and applications processor (ARM® Cortex®-M4) for internet of things (IoT) integration into industrial and residential equipment
    • Single system-on-chip (SoC) optimized for performance and size
    • Chip-level, Wi-Fi Alliance Wi-Fi® CERTIFIED™
    • Provisioning made easy with SmartConfig™ in addition to application point (AP) provisioning
  • System architecture:
    • Two connection schemes: Connection to external AP (device as STA), device as AP
    • Data transfer schemes: Always connected, intermittently connected
  • Power consumption: Optimized for wired and battery operation
    • Always Connected: <700 μA (Beacon only)
    • Intermittently Connected: <3 mA (5 s interval), <1.5 mA (10 s interval)
    • Device low power modes: Hibernate ( < 10 μA), LPDS (<150 μA, 20 mA peak)
  • Security features:128-bit unique device ID, secure boot of MCU image, internal HTTPS server for AP provisioning, MQTT over TLS, secure over-the-air (OTA) update

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files

Order Now
Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

SimpleLink™ Wi-Fi® CC3220MODASF LaunchPad™ Development Kit


Pricing may vary.

Contact a Distributor  

TI Devices (4)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC3220MODA  SimpleLink™ 32-bit Arm Cortex-M4 Wi-Fi CERTIFIED™ wireless module with antenna  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules
OPA4342  4-Channel, 1 MHz, RRIO, 5.5V op amp  Operational amplifiers (op amps)  Sample & Buy Not Available
TMP116  ±0.2°C Accurate Digital Temperature Sensor With NV Memory  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
TPS62162  3V-17V 1A Step-Down Converters with DCS-Control™  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC3220MODA Download Download
OPA4342 Download Download
Download Download
Download Download
TMP116 Download Download
TPS62162 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (1)
Title Type Size (KB) Date
PDF 1163 10 May 2019
White paper (1)
Title Type Size (KB) Date
PDF 1123 08 Jan 2019
Design files (3)
Title Type Size (KB) Date
PDF 230 15 Aug 2018
PDF 126 15 Aug 2018
ZIP 6950 10 Aug 2017

Support & training

TI E2E™ forums with technical support from TI engineers

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles