It looks like you mistyped the URL in your address bar or have followed an old bookmark.
No need for a multimeter - just build a component tester yourself with a Redboard and Flowcode!
Sandeep Mistry, from Arm, recently released this blog that teaches readers how to train and deploy a custom audio classifier machine learning model to a Raspberry Pi Pico or the SparkFun MicroMod RP2040, using TensorFlow and Google Colab