Features -
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Wireless Standards: Dual-band 2.4 GHz – Wi‑Fi (802.11 b/g/n) + Bluetooth Low Energy 5.0 via BL602 SoC .
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Antenna: Supports external antenna through I‑PEX connector (HLK‑B35‑E variant specifically external—others like HLK‑B35 default to PCB antenna but convertible) .
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Transmit Power: Wi‑Fi up to approx. 18–21 dBm; BLE up to 15 dBm
Key Advantages -
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BLE 5.0 Integration: Uplifts range and throughput over legacy BLE (≥4.2) modules
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AT-Transparent Serial Mode: Simplifies bridging between UART and Wi‑Fi/BLE networks for quick deployment
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External Antenna Flexibility: Improved RF range and performance in shielded/custom scenarios by using an external antenna .
