Low power Bluetooth microcontrollers support mesh networking

Two low power, dual-mode Bluetooth 5.0 and Bluetooth Low Energy (BLE) microcontrollers introduced by Cypress include support for Bluetooth mesh networking for the IoT. The CYW20819 and CYW20820 each provide simultaneous Bluetooth 5.0 audio and BLE connections, delivering low-power wireless management that enable music and voice commands for battery-powered fitness bands, health monitoring devices, and voice remotes. Designers can also use the microcontrollers to develop low-cost, low power Bluetooth mesh network devices that can communicate with each other and with smartphones, tablets and voice-controlled home assistants via simple, ubiquitous, and hub-free Bluetooth connectivity.

The CYW20819 Bluetooth/BLE microcontroller can maintain serial port profile (SPP) protocol connections and Bluetooth mesh connections simultaneously. The CYW20820 offers the same features and integrates a power amplifier (PA) with up to 10dBm output power for long-range applications up to 400 meters and whole-home coverage. This provides classic Bluetooth tablet and smartphone connections while enabling a low-power, standards-compliant mesh network for sensor-based smart home or enterprise applications. The Arm Cortex-M4 core enables operation at 60 per cent lower active power for connected 200ms beacons compared to current solutions, claims Cypress, delivering up to an industry-leading 123 days of battery life from a CR2032 coin cell battery. The microcontroller is suitable for wearables, sensors, remote controls, smart home lighting and medical devices, and they are forward and backward compatible for dual-mode mouse and keyboard HID applications.

Using Bluetooth mesh networking technology, combined with the high-performance integrated PA in the CYW20820, the devices within a network can communicate with each other to easily provide coverage throughout even the largest homes, allowing users to control all of the devices via apps on their smartphones, tablets, and smart-speakers.

The CYW20819 and CYW20820 MCUs are supported by Cypress’ ModusToolbox development tools, which provide sample code and applications for Bluetooth mesh and sensor kits.

Cypress also offers the CYW20719, CYW20706, and CYW20735 BLE solutions and the CYW43438 and CYW43570 Wi-Fi and Bluetooth combinations, delivering compliant Bluetooth mesh for devices and Wi-Fi connected smart homes.

The Cypress CYW20819EVB-02 evaluation kit will be available in March 2019 and the Cypress Mesh evaluation kit (CYBT-213043-MESH), featuring a Bluetooth 5.0-qualified and regulatory-certified module based on the CYW20819 microcontroller will be available in Q2 2019.

Visit Cypress at Embedded World (Hall 4A, stand 4A-148)


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