Wi-Fi
Wi-Fi® is the branding used by the Wi-Fi Alliance® to describe the family of wireless local area network standards specified by the IEEE 802.11 Working Group. The two industry bodies work closely together, with the Wi-Fi Alliance focusing on the requirements and certification of the technology, and the IEEE focusing on the underlying technical specifications. The Wi-Fi Alliance is responsible for the Wi-Fi CERTIFIED™ accreditation program, which aims to achieve a high level of interoperability, reliability, and security compliance.
Wi-Fi is an evolving standard, with new IEEE 802.11 standards being incorporated every 4-6 years, along with the corresponding Wi-Fi Alliance certification program. The branding Wi-Fi 6 is defined by the Wi-Fi Alliance, and aligns with the IEEE 802.11ax specification, but includes all previous versions of the IEEE 802.11 specifications dating back to the introduction of Wi-Fi in 1997.
The evolution from the base standard started with the introduction of IEEE 802.11b and IEEE 802.11a in 1999, IEEE 802.11g in 2003, IEEE 802.11n in 2008 (and subsequently branded Wi-Fi 4), IEEE 802.11ac in 2014 (subsequently branded Wi-Fi 5), and finally IEEE 802.11ax in 2019, branded Wi-Fi 6. These standards operate in the unlicensed spectrum of the 2.4 GHz and 5 GHz bands. However, 11b and 11g are only applicable in the 2.4 GHz band, while 11a and 11ac are only applicable in the 5 GHz band. The IEEE 802.11ax standard is also specified for operation in the 6 GHz band, with this variant being branded Wi-Fi 6E to signify extension to the 2.4 and 5 GHz bands used in Wi-Fi 6.
For nRF70 series documentation, see the following:
Working with nRF70 Series for the information related to Wi-Fi support in the nRF Connect SDK and using the development kit (DK).
Wi-Fi samples for the available samples.
nRF70 Series for the technical documentation on the nRF70 Series devices.
If you want to go through an online training course to familiarize yourself with Wi-Fi and the development of Wi-Fi applications, enroll in the Wi-Fi Fundamentals course in the Nordic Developer Academy.