It seems to have something to do with the reset pin. If I disconnect that, it works fine. Is the reset pin important on your shield?

Thanks for that, I'll get the minima :)

Hi, I have found that the Lambda Shield 2 Example works on the new Uno Wifi Rev 4 board, returning the expected 20.95% result in free air. However, I can only do this by first uploading the example without the shield attached. If I try to upload any program with the shield attached I get a board not...