Has your first Mini Maestro ever worked before? Can connect the Maestro into your Windows 7 computer, and then post a screenshot of your Device Manager with the “Ports (COM & LPT)” and “Pololu USB Devices” entries expanded?
Thank you for the screenshot. I suspect that your USB cable might be causing the issue since nothing changes in the Device Manager when connecting the Maestro board to your computer. We have seen the same problem when other people try to connect their Maestros to their computers using power only USB cables (e.g. cell phone charging cables) instead of USB cables with data lines. You said you tried three different USB cables and that they work with other USB devices. What are those devices? Are those devices capable of sending and receiving data?
Hi! I’m not sure what I have used the cables i’very tried so far for. I know that I have an USB-cable between my raspberry pi mediacenter, and the media disk. Tonight I will try that cable.
Com&lpt doesn’t show up under device manager after clean win 7 install and install of pololu driver. Is that a problem?
I am glad that the problem has been resolved; thank you for letting us know.
By the way, to answer your question in your previous post, it is normal for “Ports (COM & LPT)” to not show when no external devices are detected; since your computer did not detect either of your Maestros (or any other USB serial devices), it is not a problem for “Ports (COM & LPT)” to not show up in your Device Manager.