System Block Diagrams
System Level Block DiagramsAll designs will use the ATmega328 microprocessor as built into the Arduino Pro Mini board and then a FTDI to USB (or similar) to convert the signal into a protocol that can be read easily by the base unit.
Knee Flexion Sensor
Below is the block diagram for the knee flexion sensor. It consists of two options: one uses a variable resistor such as a potentiometer or a flex sensor and the other uses a pair of inclinometers.
Head Tilt Sensor
Below is the block diagram for the head tilt sensor. It is based around the Razor 9DOF sensor that can be found here.