Publisher's Synopsis
The Raspberry Pi Pico W is the first small wireless board made specifically for physical computing; it's the successor to the popular Pico board. It's built around the in-house ARM chip RP2040 created by The Raspberry Foundation. Both boards are built around the same material as the original Pico board, which we discussed earlier. The Bluetooth connectivity on the new Pico W model is significantly improved over previous models. The Infineon CYW43439 wireless chip comes with an IEEE 802.11 b/g/n wireless LAN chip, and Wi-Fi connectivity is also included.
The Raspberry Pi Pico W is identical to the original Pico board in every way except for the fact that it has 40 pins. The Pico W has 30 GPIOs accessible through its header; however, only 26 of them are multipurpose. The remaining two pins are GP23, GP24, GP25, and GP29.
Since these four pins are not exposed on the header, we only have access to 26 functional GPIOs with the Pico W board. PicoW supports a 3-Pin Header near the RP2040 Chip that is used for debug purposes. All GPIO pins on the board operate at 3.3V and have no other additional headers or options.
