The RP2040 microcontroller, developed by Raspberry Pi, there are over 100 third-party RP2040 boards available, each offering unique features. Requirements to consider when selecting a board:
GPIO Pin Count: Smaller boards like Pimoroni’s Tiny RP2040, SparkFun’s Pro Micro RP2040, and Adafruit’s QT Py RP2040 have fewer pins but fit well in compact projects.
Wireless Connectivity: The Pico W provides an easy and low-cost way to get projects online. Previously, add-on boards like Adafruit’s Airlift or Pimoroni’s Pico Wireless Pack were needed. The Arduino Nano RP2040 Connect also offers Wi-Fi and Bluetooth built-in, albeit at a higher cost than the Pico W.
Ecosystem Compatibility: Different RP2040 boards have varying pinouts. For example, the Adafruit Feather RP2040 aligns with FeatherWing add-ons, while the Pico directly connects to Pimoroni’s “packs.”