MICROCONTROLLER
We decided to use the Arduino Mega 2560 as our main microcontroller for this project. For more detail on the decision making process, open here and go to Individual Component Analysis on Microcontroller.
Price: $16.99
ARM ACUATOR SYSTEM
For the Actuator System, we decided to use 2 stepper motors equipped with its motor driver and a servo for the tip. these are the actuators that we decided to use.
Price: $7.95
CIRCUIT & PRINTED CIRCUIT BOARD
In order to create a much more tidier and simpler cabling system, we decided to design a Printed Circuit Board. The image below shows the full circuit schematic as well as the cabling system of a finger with the PCB embedded. as seen below, the PCB decreases an amount of cables needed.
Full Circuit Schematics
PCB Schematics, Assembly, and Installation