Wireless module adds MCU, Zigbee, and Bluetooth connectivity to IoT designs

Quectel Wireless Solutions has unveiled its latest high-performance MCU Zigbee and BLE module, the KCMA32S. This innovative module is crafted to address the evolving needs of IoT applications, offering advanced connectivity choices and a compact design.

Powered by Silicon Labs’ ultra-low-power EFR32MG21 wireless SoC, the KCMA32S module supports Zigbee 3.0 and BLE 5.3, enabling multi-protocol coexistence for enhanced communication capabilities. It is equipped with an ARM Cortex-M33 processor running at speeds up to 80 MHz, ensuring efficient performance across a wide spectrum of applications. The module provides flexible memory configurations to accommodate diverse applications, with options for 64 KB RAM and 768 KB flash memory, or 96 KB SRAM and 1024 KB flash memory, offering abundant resources for developers to build robust solutions.

One of the standout features of the KCMA32S is its support for Zigbee/BLE mesh networking, which enhances network scalability and node counts using mesh topology. This feature is particularly ideal for devices that facilitate many-to-many communications, such as smart lighting, smart buildings, and smart home wireless networks. Additionally, the module presents an enhanced security solution, Secure Vault, delivering a heightened level of IoT security.

With dimensions of 20.0 mm × 12.0 mm × 2.2 mm, the KCMA32S is designed in a LCC + LGA form factor, optimizing size and cost for end products. This adaptability allows for compatibility with various designs, making it a suitable option for a range of IoT applications.

The KCMA32S supports up to 20 GPIOs, which can be multiplexed for various interfaces, including I2C, UART, SPI, and I2S, in the QuecOpen SDK solution. It also boasts superior sensitivity of -104 dBm and a transmit power of up to +20 dBm, providing flexibility and versatility for a variety of applications.

Key features of the KCMA32S include: Zigbee 3.0 and BLE 5.3 support with multi-protocol coexistence; 64 KB RAM and 768 KB flash memory or 96 KB SRAM and 1024 KB flash memory (optional); Zigbee/BLE mesh networking capabilities; 20 GPIOs for multiplexed interfaces including I2C, UART, SPI, and I2S functions in QuecOpen solution; Operating temperature range of -40 °C to +85 °C; Optional PCB antenna/RF coaxial connector/pin antenna interface.

The KCMA32S module is poised to transform the approach to IoT solutions, offering a potent, compact, and secure choice for a multitude of applications.


Filed Under: ICs, SoC, Tools, Wi-Fi / Bluetooth, Wireless Design and Development