That seems to be due to he microcontroller using its pins in duplex. There is indeed no radiation being emitted in that case, just the lamp and rotation. https

That seems to be due to he microcontroller using its pins in duplex. There is indeed no radiation being emitted in that case, just the lamp and rotation. https://news.ycombinator.com/item?id=46979936 https://news.ycombinator.com/item?id=46979936