Silicon Labs

EFR32MG Edge AI Guides

256 KB SRAM with Cortex-M4F FPU and DSP meets threshold for ML inference. Low clock speed (40 MHz) limits inference throughput — best suited for simple always-on models like anomaly detection.

Hardware Specs

Processor ARM Cortex-M4F @ 40 MHz
Cores 1
Clock 40 MHz
SRAM 256 KB
Flash 1 MB
FPU single
Connectivity 802.15.4 (Thread/Zigbee), Bluetooth 5.0 LE
Key Features Multi-protocol wireless (802.15.4 + BLE), Matter/Thread certified, Ultra-low-power radio, Hardware crypto acceleration
Price $3–$6 (chip), $20–$40 (dev board)

1 dev boards available across PlatformIO registries.

Hardware Guides

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