Quectel module combines Zigbee and Bluetooth LE

  • July 16, 2025
  • Steve Rogerson
  • Quectel

Quectel has unveiled a Zigbee and Bluetooth LE module for smart lighting, building and home networks.

The KCMA32S module is designed to meet the growing demands of IoT applications, featuring connectivity options and a compact form factor.

Powered by Silicon Labs’ low-power EFR32MG21 wireless SoC, the module supports Zigbee 3.0 and BLE 5.3, enabling multi-protocol coexistence for enhanced communication capabilities. It is powered by an Arm Cortex-M33 processor with a frequency up to 80MHz, ensuring efficient performance for a wide range of applications.

The module has flexible memory configurations to suit various applications, with options of 64kbyte RAM and 768kbyte flash memory, or 96kbyte SRAM and 1024kbyte flash, providing ample resources for developers to create robust products.

A key feature is its support for Zigbee and BLE mesh networking, which increases network scalability and node counts with mesh topology. This capability is suitable for devices that enable many-to-many communications, such as smart lighting, smart buildings and smart home wireless networks. Additionally, the module offers an enhanced security option, Secure Vault, which provides a higher level of IoT security.

“With the launch of the KCMA32S, we’re expanding the possibilities for compact, high-performance IoT,” said Delbert Sun, vice general manager at Quectel Wireless (www.quectel.com). “This module brings together robust multi-protocol connectivity, advanced security features and a compact form factor, empowering developers to create smarter, more scalable IoT devices across industries like smart lighting, building automation and consumer electronics.”

With its 20.0 by 12.0 by 2.2mm size, the module is designed in a LCC + LGA form factor, optimising size and cost for end-products. This versatility allows for compatibility with diverse designs, making it suitable for various IoT applications.

The module (www.quectel.com/product/kcma32s-mcu-zigbee-ble-module) supports up to 20 GPIOs, which can be multiplexed for various interfaces, including I2C, uart, SPI and I2S, in the QuecOpen SDK. It also has sensitivity of -104dBm and a transmit power up to +20dBm, providing flexibility and versatility for a range of applications. Operating temperature is -40 to +85˚C. Optional PCB antenna, RF coaxial connector and pin antenna interface are available.