Electronics Hardware

Evaluating the ALFA Network AHPI7292S

The Alfa Network’s AHPI7292S was claimed to be the world’s first IEEE 802.11ah sub 1 GHz WiFi Raspberry Pi HAT when it was introduced in 2021. It is based on the 1st generation Newracom NRC7292 SoC and is still readily available today from various distributors such as The Newracom NRC7292 (and 2nd generation NRC7394) can operate in either host mode or standalone mode. While the NRC7394 2nd generation part has since been released, the easy availability of the AHPI7292S should make it a candidate for initial evaluation of the Newracom ecosystem – but with some caveats ahead (spoiler: lack of

Embedded Linux

Building an updated 802.11ah driver for the Alfa Network AHPI7292S

The Alfa Network’s AHPI7292S was claimed to be the world’s first IEEE 802.11ah sub 1 GHz WiFi Raspberry Pi HAT when it was introduced in 2021. It is based on the first generation Newracom NRC7292 SoC and is still readily available today from various distributors such as While more expensive than some other alternatives, the readily available aspect makes it still an option for evaluating 802.11ah Halow Sub GHz WiFi, especially the Newracom ecosystem. However, support is a little lacking. On-line reviews show a common frustration with documentation and source-code being years out of date. Alfa Network has a pre-built

Electronics Hardware

Evaluating 802.11ah HaLow using the ESP32-S3 & FGH100M-H

At the time of publishing, one of the easiest ways of prototyping or evaluating a 802.11ah HaLow client without having to spin your own PCB is using the commonly available Wi-Fi HaLow Transceiver for Seeed Studio XIAO (SKU: 109100041). This board is available from suppliers such as SeeedStudio, Aliexpress and DigiKey. The PCB is populated with a Quectel FGH100M-H HaLow module. This module operates in the 915MHz ISM band and according to the latest Product Brochure (V8.6) from Quectel has FCC (United States), RCM (Australia & New Zealand) and Anatel (Brazil) regulatory certification. The FGH100M-H is based on the Morse