New Guide: Adafruit Shield Compatibility

compat

Arduino shields are splendid in concept…but, as new Arduino variants mutate and evolve, one inevitably runs into the issue that each board has its own distinct personality, and just following the shield pinout is no longer a guarantee of interoperability.

Our new guide aims to clear up this confusion. It’s a one-stop cross-reference with each combination of Adafruit shield and Arduino board, finding workarounds where incompatibilities exist and improving our library code along the way.

We have five Adafruit shields to start with: PWM/Servo Shield, Assembled Data Logging Shield, Motor/Stepper/Servo Shield, NeoPixel Shield and the PN532 NFC/RFID Shield, and we have these working across all the mainstream Arduino boards: Uno, Leonardo, Mega (all variants), even the Due! More shields will be added incrementally until the whole stable is represented.

Adafruit Shield Compatibility Guide


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

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