Troubleshooting Sensor Accuracy

Because this type of sensor was originally designed to track hand and finger movements, not necessarily arrows moving at very high speeds, you may occasionally see shots that seem to not register or register off from where you actually hit, particularly if operating the system in bright sunlight.  However there are many troubleshooting steps you can take to minimize the frequency of these errors.  Below is a list of the most common causes of these types of issues:

1. The system needs recalibrating.  Be sure when you are collecting arrows you do not bump the projector.  Even a slight bump and you will likely need to recalibrate again.  You can do this between photo and video rounds or from the main menu by clicking the crosshairs in the upper right corner of the screen.
2. The sensor sample time or outlier threshold need adjustment. See the section of this guide for an explanation of these settings and how they work.  Editing them can take some trial and error as the optimal settings will be different according to your computer, sensor, and arrow speed.
3. The sensor is dirty.  Be sure to wipe clean periodically with a soft cloth.
4. The Projected image is too large.  If the light from the projector is overlapping with the sensor edges, the sensor may be picking up light from the projector or the projector light could be washing out the arrow reading.  Move the projector slightly closer to the screen to shrink the image down slightly and then recalibrate.
5. There is too much light pollution from the sun.  If running outdoors, even in a popup tent, the sunlight may be interfering with a good sensor read on a sunny day.  Adding additional material inside the tent wall on the sunny side will block more of the sunlight from the sensor.  (If your popup tent has 4 walls, this is a great use of the front wall not being used already).
6. The sensor is too close to the screen.  If you are shooting a faster bow, the sensor may not have enough time to sense the arrow before it bounces off the backstop and out.  Move the sensor assembly farther away from the screen as discussed in the calibration chapter.  This will give the sensor more time to respond.
7. The computer is too hot. Watch that your computer isn't sitting in the direct sunlight for long shooting sessions as it may overheat and this can severely impact performance.
8. Arrows are resting on the sensor after a shot. Sometimes the sensor can get a little confused if too many arrows land propped up on top of the sensor during a round.  Raising up the sensor as high as it will go (while remaining in front of the backstop) can help arrows to fall more cleanly off of the sensor.

That's it for the build guide for now! Enjoy shooting MinumOS and feel free to reach out with any questions!