Alien Motion Tracker Build

FAQ and Troubleshooting

The following is a list of frequently asked questions as well as some troubleshooting tips. For more help, please join my Discord Server.

• Device Won`t Charge
  If you are using the 2-Wire USB-C connector, then it will only charge with dumb USB-C chargers or with USB-C to USB-A Cables.
• Framerate is VERY SLOW
  Your Raspberry Pi isn't getting enough power, you'll need to thicken up the power wires and shorten them where possible. See power throttling for more information.
• Volume Control is Backwards
  No worries, simply swap the first and last pins around on the PCB.
• Sensitivity Slider is Backwards
  No worries, simply swap the first and last pins around on the PCB.
• Pi Crashes/Locks up when moving Slider or Volume to one extreme
  DISCONNECT IMMEDIATELY. You have wired up the variable resistor incorrectly and are shorting out the power supply!
• UV LEDs Not Lighting Up
  Reverse the connection, you have the polarity wrong.
• Pi doesn`t detect the PCB
  Check you have inserted the flat cable properly at both ends and that the blue side is facing upwards. Check the cable type is a Type B, or Reversed.
• Top Section/Air Vent Didn't Print
  You need to enable detection of thin lines for this to print properly.
• The radar display is rotating even when it's sitting on a table
  The accelerometer has either lost its calibration or you were holding the tracker while it powered up. Please follow the proper startup procedure.