Entries by Jordan Smallwood

Pathfinder Final Blog Post – Spring 2018

By: Jordan Smallwood (PM) Approved By: Miguel Garcia (Quality Assurance) Pathfinder Team: Jordan Smallwood (PM) Diane Kim (E&C) Mohamad Yakoub (MST) Adolfo Jimenez (Manufacturing) Executive Summary: By: Jordan Smallwood (PM) Mission Objective: Figure 1: Final Course Outline The Spring of 2018 Pathfinder will follow the path laid down by previous Pathfinders. The mission will begin […]

Final Arduino Code

By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) 6-Wheel Differential: The six-wheel differential takes advantage of pin-change interrupts since most of the external interrupt pins are lodged within communication pins on the ATMega 2560. The way it works can be viewed here. Currently we are experiencing difficulties getting the software to work, this may […]

Final Pathfinder Design

Author: Adolfo Jimenez (Manufacturing Engineer) Verified By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) Introduction: Figure 1: Isometric View of the Pathfinder Robot Many modifications were made to our original designs of the pathfinder rover. These designs were implemented to accommodate the requirements of the rover being able to operate in a […]

PCB Fabrication

Author: Diane Kim (Division Manager of E&C Hardware) Verified By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) Introduction To fabricate our board, we use a PCB fabrication machine called the V-One from Voltera. Its function includes printing, soldering, and drilling. Printing V-One uses conductive ink to print the traces of the circuit. […]

Solar Panel Charging

By: Mohammad Yakoub (Mission, Systems, and Testing) Verified By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) Introduction The objective of this blog post to find a way to charge the main battery with the solar panel cells. There are different ways to go about this, but I found that the best way […]

Stepper Motor Study

By: Adolfo Jimenez (Manufacturing) Verified By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) Introduction In order to test the articulation of the solar panels before they were assembled onto the chassis an EasyDriver stepper motor driver was used to run and test the motors, and thus by extension the solar panels. Stepper […]

Custom PCB for Solar Panels

Author: Diane Kim (Division Manager of E&C Hardware) Verified By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) Introduction The second PCB is for the solar panels which consists of the connection for the stepper motor drivers (3), current sensors (6), and GPIO expander. We are using the stepper motor from Sparkfun therefore […]

Custom Chassis PCB

Author: Diane Kim (Division Manager of E&C Hardware) Verified By: Jordan Smallwood (Project Manager) Approved By: Miguel Garcia (Quality Assurance) Introduction Unlike many of the other projects that are required to use the 3DoT board, we will be using the ATMega 2560 due to a large amount of connections. Since many of the interconnections are […]

Fritzing Diagram Training

By: Diane Kim (Division Manager of E&C Hardware) Verified By: Jordan Smallwood (Pathfinder Project Manager) Approved by: Miguel Garcia (Quality Assurance) Introduction Fritzing is a program that allows easy PCB design. It allows the user to convert their design on breadboard to CAD files. On the breadboard view, there are parts that are commonly used […]