I don’t see a COM port listed for Sparki
- Make sure the USB cable is plugged in firmly
- Make sure the drivers are installed. They should be installed when you install SparkiDuino or miniBloq, but you can also find the dedicated driver installer on the downloads page:
http://arcbotics.com/downloads - Try doing a manual upload. This will help in case a previously uploaded program is crashing Sparki:
http://arcbotics.com/lessons/manual-upload/