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Thread® Protocol Products

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The Future of Smart Buildings: Open, Adaptable Connectivity


Our Thread® protocol products offer seamless Internet Protocol (IP)-based, mesh networking from sensor to cloud. They can be found in a variety of residential and commercial IoT applications such as:

  • Low-powered smart home and building sensors
  • Energy management (e.g., smart thermostats)
  • Robust, wireless mesh or hybrid (wired/wireless) lighting solutions

As a Thread Group member, we are building solutions based on OpenThread, the proven, open-source implementation of the latest Thread specifications. The OpenThread stack sits on top of our 802.15.4 PHY drivers.

PIC32-BZ Family


Thread® Protocol Products—Thread Modules and SoCs

Simple, Secure and Robust Multi-Protocol MCUs

Designed from the ground up to enable you to go to market quickly, this family is powered by an Arm® Cortex®-based M4F core and is packed with features.

  • General-purpose MCU with integrated wireless:
    • Bluetooth® Low Energy (LE) 5.2
    • Zigbee® 3.0
    • Thread 1.3.0
    • Proprietary and other IEEE® 802.15.4 protocols including MiWi
  • A rich set of peripherals including ADC and touch inputs
  • Advanced on-board security engine with TRNG, SHA and ECC
  • Automotive AEC-Q100 Grade 1-qualified (125°C)
Thread Protocol Certified Products

Why Design With Our Thread MCU Modules and SoCs?


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Robust Performance

Our PIC32CX-BZ and WBZ family is built to thrive in tough environments. These devices are temperature tolerant and provide stable RF performance regardless of the conditions.

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Advanced Peripherals

With up to 29 GPIOs, it is easy to add features that set your application apart. This MCU family supports a rich set of peripherals including capacitive touch, ADC and DAC.

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Product Selection

In addition to SoCs, we design and build our own RF-ready modules. If you want more customization, we provide chip-down reference design packages for building your own module.

Key Markets and Applications


Thread’s low power consumption and mesh architecture make it a great choice for industrial automation, smart building and smart home applications.

Industrial Equipment

Industrial Equipment

  • Handheld equipment
  • Pump and motor connectivity
  • Meters and solar farms
  • Electric Vehicle (EV) chargers
Building and Refrigeration Systems Control

Building and Refrigeration Systems Control

  • Compressor groups
  • Condensers
  • Walk-ins
  • HVAC units
Home Automation

Home Automation

  • Windows, doors and motion and temperature sensors
  • System control and user interface panels
  • Pool and spa controls

Getting Started With Thread


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Step 1

Get a WBZ45x Curiosity Board and any third-party hardware.

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Step 2

Set up your MPLAB® Harmony development environment.

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Step 3

Explore the Thread documentation.

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Step 4

Jumpstart your project using one of our Thread application examples.

Demo and Evaluation Boards


Part Number: Quantity: Price per Unit (in USD): Total Amt:
EV79Y91A

The WBZ451HPE Curiosity board is an all-in-one development platform that you can use to evaluate WBZ451H high-power modules. 

EV96B94A

The PIC32CX-BZ2 and WBZ451 Curiosity board is an all-in-one development platform that you can use to evaluate PIC32CX-BZ2 SoCs and WBZ451 modules.

EV22L65A

The PIC32CX-BZ2 and WBZ450 Curiosity board is an all-in-one development platform that you can use to evaluate PIC32CX-BZ2 SoCs and WBZ450 modules.

Design Resources


Smart Warehouse

Smart Warehouse

Harness the power of AI and IoT for industrial environments.  Follow this example to build an complete solution including a Thread gateway that connects various industrial IoT devices to the cloud.

Smart Building Demo

Smart Building

This project showcases the potential of smart environments. Follow this example to build an end-to-end solution including a Thread gateway that connects various IoT devices to the cloud.

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And Many More

Explore our growing library of application examples, documentation and videos available through MPLAB® Discover.

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Mobile App Source Code

We provide the Microchip Bluetooth Data (MBD) application and source code for iOS® and Android™ to use for prototyping or as a starting point for developing your mobile app.

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MCPRT3 Radio Test Tool

Use this Windows®-based software to test your RF configuration during development, certification and production.

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Design Check Service

Our MicroCHECK design service is available at no charge to customers who have selected our wireless devices for their applications.

Learn About Thread


What Is Thread?

With so many wireless connectivity protocols already available, you may wonder why Thread is necessary. Although there are many to choose from, none of them offer a solution that meets the unique demands of IoT design.

When working with most protocols, IoT projects are complex and riddled with challenges like interoperability, range, security, reliability and power usage. Because it is built on open and proven standards, Thread strives to solve these challenges and reduce the complexity of IoT development.

Built on open standards and IPv6 technology with the IEEE® 802.15.4 standard as its foundation, Thread is a mesh networking technology that offers many advantages over other protocols. Thread networks are secure, reliable, scalable and flexible.

With Thread, IoT developers can easily create applications that support large networks with many devices that need cloud access.

Thread Protocol Network Stack Diagram

Benefits of Thread Networks

Interoperability

Thread strives to solve the interconnectivity challenges present in current IoT solutions. It is based on Internet Protocol (IP), which is the underlying technology that allows devices to talk to each other over the Internet. Because it uses an established and universal standard, Thread devices can connect to each other and the Internet quickly without the need for complex configuration.

Scalability and Reliability

Thread operates using a scalable mesh architecture (supporting up to 250 devices), which means that each device in the network can act as a router to forward messages to other devices. This allows the network to cover a large area and enables devices to communicate even if they are not within range of a direct connection.

Security

In addition to IP-addressable and mesh capabilities, Thread is known for offering security at every layer of the stack. These strong security measures protect against unauthorized access and tampering, ensuring that IoT devices and the data they transmit are secure.

Thread Mesh Network Example

Thread Versus Zigbee®

When looking at capability, Thread and Zigbee appear to be interchangeable. They are both 802.15.4-based protocols that support a scalable mesh network architecture. Looking deeper at the underlying technology, you’ll find significant differences.

Open Standards Offer Seamless Interconnectivity

The primary difference between Thread and Zigbee is that Thread is IP based. Thread’s native IPv6 addressing simplifies the connection with other IP interfaces such as Wi-Fi® or Ethernet. Unlike Zigbee, Thread doesn’t require an additional “translator” device to communicate with other networks—Thread is built for effortless Internet connectivity.

Application Independence Future-Proofs Your Design

Thread’s independent application layer sets it apart from Zigbee and other 802.15.4-based protocols. Because Thread is application layer agnostic, IoT developers have the flexibility to change applications and cloud services without a major redesign.

User-Friendly Setup Makes It Easy to Add Security

Although both Zigbee and Thread offer robust security, Thread’s authentication and commissioning can be smartphone based, making it much easier and more user friendly than Zigbee for onboarding a new device.

Thread Network Stack Compared to Zigbee Network Stack