Simple attachment method, uses only two straps
around the leg with half straps supporting it
around the knee. Easy and quick attachment and
removal, though it may not remain as stationary
as we need.
More robust attachment method which may take
longer to place on a patient, but should hold
very well in place.
Alternate robust attachment method.
Simple strap method for securing to a patient's
head. Fits a wide range of head sizes and shapes.
Sensor easily mounted in the front. Only issues
could be that it may not be robust enough to not
Same style strap. Replace flashlight module with
sensor enclosure. Easily obtainable for testing
Wrestling style head strap. A very robust way to
attach to a head as it will move around very
little if at all. May be uncomfortable for some
patients and more difficult to attach to head.
Combines previous methods into a very secure head
mounting solution that should not move around
Redesigned head tilt sensor test stand.
USB to I2C
- allows multiple sensors to connect to I2C bus
- only allows I2C connection
- has no A/D converters
- simple on sensor end
- adds complexity to communication
- does not allow future expansion to wireless
- minimal number of parts
- allows a variety of connections (I2C, SPI, analog,
- has A/D converters
- simple to control communication with FTDI to USB
- more complex on sensor end
- allows future expansion to wireless or different
- requires board with ATmega/ATtiny and a converter to