I'm a little bit lost... 1. Is there an easy way to visually identify an ARx model ? (MK2, MK3 , .. ) ??? 2. Where can I find a compatibility matrix ( what UI version is compatible with what firmware version and with what hardware MK ) 3. Is the most recent software backward compatible or should I pay attention to some limits ? 4. Suggestion / new feature : store the identification data (model, maybe a serial number, ..) in an EEPROM somewhere and read it at Teensy boot time and show it on the UI ? 5. What are the migration paths (hardware) ? I saw some upgrade kits on the web site but not sure what are the requirements.. Thanks Philippe

While playing with the programing, the teensy board had lost connection to the software. Come to find out that breakout board had shut off. All wires have been checked, ive looked at the wiring diagram and even looked up the specifications on the driver. i tested all the connections on the drivers, but im not getting 3.3v or 5v anywhere to the brakout board. ive checked all wires, and all connections seem to be good. Where is the power to the breakout board coming from? which port? Anything you have on this issue, please let me know.

Hello Chris and AR community. I'm pretty far along in my 3D printed build. I'm currently stuck getting the J6 motor into the J6 housing. The gearbox seems to be 35mm while the bore on the housing seems to be just over 32mm The bore seems to be almost 3mm to small. I started sanding my 3D printed J6 housing but that seems like way too much material to sand off. The bearing shafts on the J6 housing seem to be the correct size so it's not like the whole part is undersized. I believe this part was available for purchase on it's own as as upgrade for older robots but it seems to no longer be available. I'd love to purchase this part if it where still available. Is it possible there's an updated STL file with a larger bore?