| A) Arduino Uno (R3) |
An open-source, low-cost microcontroller for the purpose of communicating with all mouse wheel sensors and recording the ongoing distance traveled. |
$23.00 |
| B) Hall Effect Magnetic Sensors (A3144) |
Small, standardized magnetic sensors to detect the state of a magnetic field. These include the necessary pull-up resistor and a red LED on an integrated PCB, simplifying circuit construction and allowing for visual validation of sensor triggering. |
$6.00 |
| C) Small Magnets (10mmx3mm) |
Once attached to the mouse wheel, the magnet rotates around the perimeter and triggers the hall effect sensors to count a single wheel rotation. |
$14.00 |
| D) Non-toxic PVA Glue |
Washable adhesive necessary to glue the wheel in place, ensuring proper alignment between the sensors and the rotating magnet. |
$8.26 |
| E) Long Breadboard Jumper Wires |
Wires to connect the hall effect sensors to the microcontroller. |
$9.00 |
| F) Breadboard |
Hub for wiring to break out shared power and ground for all sensors. |
$9.00 |
| G) 3D Printing Filament |
A 1 kg roll of PLA filament costs around $30 and the printed components of our system utilize approximately 80g to print. |
$2.40 |
| Total: |
- |
$71.66 |
