Secure IoT Gateway Reference Design for Bluetooth® Low Energy, Wi-Fi® and Sub-1 GHz Nodes


Design files


A system example demonstrating how to build a secure cloud-connected IoT gateway allowing access and control of the multiple wireless nodes.  The reference design utilizes the TM4C12x, TM4C123x, TRF7970A and RF430CL330H, as well as the SimpleLink™ Wi-Fi® CC3100, Bluetooth® low energy CC2650 and Sub-1GHz CC1310 wireless microcontrollers (MCUs) development hardware and software suite for ease of development and quick time to market.

  • Exosite-based secure cloud connected mid-range multi-protocol IoT gateway solution using TM4C129Ex MCU, which connects Wi-Fi, Bluetooth low energy  and Sub 1-GHz-based nodes to the cloud
  • Supported nodes include Wi-Fi-based stepper motor control, Bluetooth low energy SensorTag, Bluetooth low energy slave node and Sub-1 GHz slave nodes
  • Connection between nodes and gateway using NFC-based secure out-of-band pairing. Secure data communication between nodes and gateway using hardware crypto blocks
  • Secure cloud connection using TI-RTOS NDK and WolfSSL stack
  • TI-RTOS is used for task scheduling and peripheral access
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement

TIDRNU4.ZIP (5978 K)

Files used for 3D models or 2D drawings of IC components

TIDCCP2.ZIP (1308 K)

Design file that contains information on physical board layer of design PCB

TIDRNU3.ZIP (2508 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Arm Cortex-M4 MCUs

TM4C123GH6PM32-bit Arm Cortex-M4F based MCU with 80 -MHz, 256 -KB Flash, 32 -KB RAM, 2 CAN, RTC, USB, 64-Pin

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C1294NCPDT32-bit Arm Cortex-M4F based MCU with 120-MHZ, 1-MB flash, 256-KB RAM, USB, ENET MAC+PHY

Data sheet: PDF
ESD protection diodes

TPD4S012Quad 0.8-pF, 5.5-V, ±10-kV ESD protection diode with 15-V tolerant Vbus for USB Interface<

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS736400-mA, high-accuracy, ultra-low-dropout voltage regulator with reverse current protection & enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7371-A, ultra-low-dropout voltage regulator with reverse current protection & enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7961-A, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Low-power 2.4-GHz products

CC2650SimpleLink™ 32-bit Arm Cortex-M3 multiprotocol 2.4 GHz wireless MCU with 128kB Flash

Data sheet: PDF | HTML
Other wireless products

RF430CL330HDynamic Dual Interface NFC Transponder

Data sheet: PDF | HTML
Other wireless products

TRF7970AMulti-Protocol Fully Integrated 13.56-MHz NFC / RFID Transceiver IC

Data sheet: PDF | HTML
Sub-1 GHz wireless MCUs

CC1310SimpleLink™ 32-bit Arm Cortex-M3 Sub-1 GHz wireless MCU with 128kB Flash

Data sheet: PDF | HTML
USB power switches & charging port controllers

TPS20522-ch, 0.5A loading, 0.9A ILIMIT, 2.7-5.5V, 80mΩ USB power switch, active-high

Data sheet: PDF
Wi-Fi products

CC3100SimpleLink™ 32-bit Arm Cortex-M3 Wi-Fi® wireless network processor

Data sheet: PDF | HTML

Start development


Technical documentation

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Type Title Date
* Design guide Secure IoT Gateway Ref Design for Bluetooth Low Energy, Wi-Fi and Sub-1GHz Nodes (Rev. A) Sep. 15, 2016

Related design resources

Hardware development

CC3100BOOST SimpleLink™ Wi-Fi® CC3100 wireless network processor BoosterPack™ plug-in module DLP-7970ABP TRF7970A NFC transceiver BoosterPack™ plug-in module DLP-RF430BP Dynamic Dual Interface NFC Transponder Booster Pack DRV8833EVM DRV8833 Evaluation Module EK-TM4C123GXL ARM® Cortex®-M4F Based MCU TM4C123G LaunchPad™ Evaluation Kit EK-TM4C129EXL ARM® Cortex®-M4F-Based MCU TM4C129E Crypto Connected LaunchPad™ for IoT Applications
CC2650EMK SimpleLink™ CC2650 Evaluation Module Kit

Reference designs

TIDM-TM4C123XSUB1GHZ Sub-1 GHz–Enabled IoT Node on High-Performance Microcontroller Reference Design

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