This product (Grove-Shield-for-Wio-Lite) is not compatible with the Adafruit Feather. Your product has a GND pin in the “Enable” position of the Adafruit Feather, which is a significant mistake. I am writing to you to request that you make the necessary corrections and inform the consumers accordingly.
We are deeply sorry about this. We will definitely make the necessary changes and clarifications to this content as soon as possible. Thank you very much for your feedback.