The HF-A21 module is a compact high performance WiFi module providing 802.11b/g/n 2.4 GHz WiFi networking for a printed circuit board device design. With a rich feature set and an industrial temperature range, this surface mount embedded module is well suited for many applications even in harsh environments. A small footprint makes the HF-A21 easy to use in handheld devices.
Available with 2 antenna options, the HF-A21 module provides design flexibility to meet specific application requirements or can be used in existing device designs.
The interface with the HF-A21 is via 10/100 Ethernet and high speed UART. Using either the user-friendly web page or an AT+ instruction set, this module is easy to configure. The HF-A21 can operate in Infrastructure Station (STA) mode, Soft Access Point (AP) mode or AP+STA mode. Support for Ethernet-to-WiFi Router/Bridge mode networking is also provided.
HF-A11 Ordering Summary:
Part # Antenna/Connector Type
GC-HF-A21-SMT-EXT U.FL/I-PEX Antenna Connector
GC-HF-A21-SMT-INT Internal PCB Antenna
Call for Volume Pricing.
The knowledgeable and experienced engineers at Grid Connect provide complete technical support for the HF-A11 and the High Flying line of embedded WiFi modules. We offer phone support and on-line chat support during regular business hours.
Grid Connect Team