Function: Enable wireless connectivity based on IEEE 802.11 standards (Wi-Fi).

Common Standards: 802.11a/b/g/n/ac/ax (Wi-Fi 4/5/6).

Frequencies: 2.4 GHz, 5 GHz, and 6 GHz (Wi-Fi 6E).

Interfaces: SDIO, PCIe, USB, SPI, UART (depending on host system).

Applications: IoT devices, embedded systems, laptops, routers, industrial automation.

Key Features:

• Integrated RF transceiver and baseband processor
• Onboard or external antenna options
• Support for WPA2/WPA3 security
• Low-power modes for battery-operated devices

Popular Module Examples:

• ESP32 (dual-mode Wi-Fi + Bluetooth)
• Microchip ATWINC1500
• TI CC3301
• Murata Type 1LD (based on Broadcom BCM4339)

Design Tips:

• Ensure proper RF layout and impedance control (50 Ω traces)
• Use ground planes and shielding to reduce EMI
• Follow module manufacturer’s reference design
• Consider regulatory certifications (FCC, CE, IC)