Looking at the data inside of a USB signal ( Example: Decoding USB keyboard protocol )

Measuring USB signal and decoding the USB protocol is easier than I thought (but you may need a decoder). Thank you very much to Gregor Hofferbert

– Teledyne LeCroy: ​https://teledynelecroy.com/usb-electrical-test/#usb2
– Is the USB you designed perfect? This is how you test it … | Gregor Hofferbert https://youtu.be/q6fhmTL-Sgo
– Long vs. Short USB Cable – How much worse the signal looks if a long USB cable is used? https://youtu.be/M6dVOnISySc