In June last year, we launched Raspberry Pi Pico W, a $6 wireless-enabled variant of our Pico platform, built around our RP2040 microcontroller. In the year since, we've sold over half a million of these tiny boards, and they've found their way into countless projects, from singing fish to web servers to communicative house plants. But one thing has been missing: Bluetooth support. Now that's been fixed - and you don't even need to buy a new Pico W.

Pico W's wireless functionality is provided by the Infineon CYW43439 device, which contains a 2.4 GHz radio providing both 802.11n Wi-Fi and Bluetooth 5.2, supporting Bluetooth Classic and Bluetooth Low Energy (BLE) functionality. At launch, our firmware and host-side software only enabled Wi-Fi, not Bluetooth.