I try to set up a MyoWare to read facial muscle movement. Specifically the jaw muscles. I have some questions concerning this setup, and maybe here is someone who can help or have more experience using the MyoWare sensor.
My setup is the following: - Spark Core, powered by MacBook via USB at the moment - Power supply for the MyoWare via the Spark Core 3V output - AnalogRead of the sensor value via Spark Core - The CableShield is attached to the MyoWare Board - Cables attached to skin I use a serial monitor for debugging / displaying sensor values
The setup works, I got some good readings. Values roughly between 40 and 3000. E.g. when chewing gum, the values change correspondingly.
The following issues are reoccurring though: - After some time the MyoWare is not reacting anymore (values stay roughly the same, although the setup hasn't change) - Turning the sensor on / off doesn't help - The EMG cable is very very sensitive. Movement of the cable leads to high values.
My questions: - Is the MyoWare affected by turning it on off? E.g. restart of the Spark core leads to a loss of power in the MyoWare. Is it possible that this leads to some kind of crash? - Should the gain be increased for facial muscles? - Is there something like a MyoWare memory which can run full, or if a sensor value gets to high? - Whats the best way to power the MyoWare, should I rather use the battery shield? - Are facial muscles even possible to track?
Some help in this area would be much appreciated!