Zigbee/BLE module enables scalable IoT networking
Quectel’s KCMA32S Zigbee/BLE module combines a compact design with versatile connectivity for a wide range of IoT devices. It is built on Silicon Labs’ ultra-low-power EFR32MG21 wireless SoC, which integrates an Arm Cortex-M33 processor running at up to 80 MHz and supports Zigbee 3.0 and BLE 5.3 for concurrent protocol operation.
The KCMA32S enables mesh networking over Zigbee and BLE, supporting scalable, many-to-many communication for smart lighting, building automation, and home networks. An optional Secure Vault feature adds advanced security, while flexible memory configurations—up to 96 KB of SRAM and 1024 KB of flash—offer ample headroom for application development.
With its small-scale 20×12×2.2-mm LCC+LGA form factor, the KCMA32S helps reduce both size and cost in end products. It offers up to 20 GPIOs, multiplexable via the QuecOpen SDK for interfaces such as I²C, UART, SPI, and I²S. The module delivers a receive sensitivity of –104 dBm and transmit power up to +20 dBm, with optional PCB antenna, RF coaxial connector, or pin antenna interfaces.
A timeline for availability of the KCMA32S Zigbee/BLE module was not provided at the time of this announcement.
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