Qualcomm Atheros Inc. — the networking and connectivity subsidiary of Qualcomm Inc. — debuted the AR4100, a Wi-Fi system-in-package (SIP) for microcontroller based design. The new module is based on 802.11b/g/n single-stream Align technology, which enables long-range transmission and reduces energy consumption. The product is initially aimed at customers implementing machine-to-machine (M2M) communications in the smart home/building/grid markets.

The AR4100 is the newest product within the Qualcomm Atheros Internet of Everything product portfolio, which includes standards-based wired and wireless technologies to enable scalable Internet protocol (IP) infrastructures for smart grid, smart home, security, building automation, remote health and wellness monitoring and other M2M applications.

The AR4100 is the industry's smallest FCC-certified SIP package, integrating all Wi-Fi functionality into a low profile 8.3 mm by 9.2 mm LGA package that can be easily mounted via low-cost PCB manufacturing flows. The AR4100 is optimized for client applications hosted by low-resource MCUs that send infrequent data packets over the network. MCUs interface to the AR4100 via a simple serial peripheral interface bus (SPI) and will be initially aimed at customers in the smart-home, -grid and -building markets. The AR4100 SIP provides full offload of all Wi-Fi functionality, including security protocols such as WEP, WPA, WPA2 and WPS. The AR4100 is a pre-certified FCC solution that offers simple wireless system integration, requiring only a few external bypass capacitors and a connection to an antenna for a board-level design.