Today, I've been working on #WebPBrick again. One thing is input validation - which is where I've made progress. The second thing was working on support for the #LEGO USB IR tower... this thing is giving me headaches, though. It seems that using the USB TX endpoint works... the IR tower also receives data which can be seen in the statistics - but the USB RX endpoint stays silent. Will have to do some logic analyzer measurements in the future, I guess. Are there any spare #Mindstorms #RCX around?