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Wi-Fi HaLow Delivers Long-Range Wireless

May 19, 2025

Morse Micro has developed a range of chips, modules, and development boards that support Wi-Fi HaLow.

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What you’ll learn:

What is Wi-Fi HaLow?
Capabilities of Wi-Fi HaLow.

Wi-Fi is a ubiquitous wireless standard that provides high-speed connectivity but with a limited range on the order of hundreds of feet. The Wi-Fi Alliance’s Wi-Fi HaLow (802.11ah) pushes its range to kilometers with an associated reduction in throughput (Fig. 1).

1. Wi-Fi HaLow provides 10X the range of Wi-Fi, but it cuts power and throughput significantly using the unregulated sub-gigahertz band.

Morse Micro is a company that supplies chips and modules supporting Wi-Fi HaLow. The technology builds on conventional Wi-Fi using the same protocol and security features. The main differences are bandwidth and range. Wi-Fi HaLow has been compared to other long-range and low-power wireless solutions like Bluetooth, low-power Wi-Fi 6, and LoRaWAN.

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What’s the Difference Between Wi-Fi HaLow and LoRaWAN?

As the IoT continues to expand, wireless protocols need to support applications that require higher network capacity, faster data rates, and more robust security.

Wi-Fi HaLow, which uses unlicensed sub-1-GHz spectrum, can handle over 8,000 devices. It’s designed to work up to 1.5 km, although it has exceeded this amount. Single-chip 802.11ah can run for years on a single battery. Wi-Fi HaLow provides the same functionality as Wi-Fi, so it works with higher-level protocols like Matter and Thread.

Beyond chips and modules, Morse Micro offers development boards with its Wi-Fi HaLow subsystem and, in this case, an STM32 microcontroller (Fig. 2). The interface is SDIO 2.0 or SPI. The company’s chips are also incorporated into modules from partners including AzureWave, MegaChips, Quectel, Silex, and Vantron. The modules are FCC and TELEC certified.

Morse Micro Wi-Fi HaLow development board — 2. Morse Micro’s development board includes an STMicro STM32 microcontroller with a Morse Micro Wi-Fi HaLow subsystem surrounded by multiple peripherals and peripheral connectors like mikroBUS.

About the Author

William G. Wong | Senior Content Director - Electronic Design and Microwaves & RF

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