Rover Generation #1
Executive Summary Overview By: Andrew Le – Project Manager The objective of the Rover Project is to improve on RObot SCOut (ROSCO), a rover created by Arxterra. It is controlled remotely by using Arxterra’s Interface in conjunction with an Android OS phone running version 3.2 or newer. The brain is the Arduino Uno and each […]
By Eduardo Contreras – Computer, Power, and Powertrain Here is the final code needed to run the rover with Arxterra. The highlighted lines are the new changes I made in order for it to work with the updated version of the Adafruit Motor Shield, as well as for the motors replacing the servos. Personal Note: […]
Post by Andrew Le Testing conducted by Eduardo Contreras, Jimmy Fernandez, and Santiago Landazuri After calibrating and tweaking the tracks’ tension, grip on surface, and hold on the wheels (wheelslip), test runs were conducted. Speed Tests To test typical speed of the Rover, a yardstick was used to measure distance. A stop watch was then […]
NiCd vs NiMH vs. LiPo Battery Packs By Jimmy Fernandez – Systems Engineer Abstract In this study, we are researching the best battery pack to use for our Tracked Rover project. While each of the batteries have their pros and cons, the properties of our chosen battery must satisfy our project requirements. The choice ultimately […]
By Eduardo Contreras – Computer, Power, and Powertrain The following code is a beta version of converting a dc motor into a servo: #include <Wire.h> #include <Adafruit_MotorShield.h> #include “utility/Adafruit_PWMServoDriver.h” Adafruit_MotorShield AFMS = Adafruit_MotorShield(); Adafruit_DCMotor *myMotor = AFMS.getMotor(1); const int deg_error = 15; int cur_pot = 0; int new_pot = 160; int inputPin = A0; void […]
Tread Development Progress By Julian Sanz – Manufacturing, 3D Printing The original tank tread for the Rover is a single continuous printed piece. It is actually a reconstruction of a 3D printed bracelet. It had undulations that would allow it to stretch slightly due to nylon’s flexibility. This allowed the tread to snap on around […]
Bill of Materials By Andrew Le – Project Manager See list below for detailed bill of materials with description and vendor sources:
Resource Report – Power/Mass By Jimmy Fernandez – Systems Engineer Power consumption and mass resource reports for the Rover Project are provided below:
Interface Definitions By Jimmy Fernandez – Systems Engineer A schematic for the interface definition and a system resource table was generated for the Rover Project.
Level 2 and Level 3 Requirements By Jimmy Fernandez – Systems Engineer System Requirements System requirements for the Rover Project were derived from our on-field testing results and planned course route. Specific system requirements were formed by these field surveying tests. These requirements are necessary to fulfill our top level mission requirements.