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Raspberry Pi Radio Module 2 is a radio module designed for use with Raspberry Pi’s low-cost, high-performance microcontrollers. It uses Infineon’s CYW43439, a single-chip combo device featuring 1 × 1 single-band 2.4GHz Wi-Fi® 4 (802.11n) and Bluetooth® 5.2 for low-cost applications. It is a small form-factor solution with minimal external components for reduced mass production costs. The radio module has castellated edge pads to allow for a variety of mounting options, and features an on-board single 2.4GHz antenna for ease of design. It has full modular certification, making integration straightforward with regard to regulatory compliance.
