Silibotics Computer Engineering Senior Design Project Mike Fivas, Jian Zhou, Jessica Sherrid all information on web site:

Original Project Ideas n Infrared Following n Barking Guard Dog n Flame Sensing (using IR) n Plan for Robot Structure with an Initial Build NOTE: These were only preliminary ideas.

Problems Encountered n First Plan Problems –No IR heat sensor available –Right and Left Drive Motors have Uneven Power –Cargo Area too Small

Secondary Project Ideas and Fixes n Flame Sensing using UV detector n Light Seeking n Sonar Avoidance of Obstacles n Adding a Pincher to the Robot n Water Pump with BIG Transistor n Rotation Sensors for more Accurate Travel n Expanding Robot Cargo Bed

Problems Encountered n Second Plan Problems –Yeah! We got a free UV sensor out of a Commercial Fire Sensor BUT, it runs off of 325v and doesn’t have an available data sheet Also, didn’t get here until after Thanksgiving –We also pulled an IR sensor out of a TV This had a narrow bandwidth and wouldn’t find heat

Final Project n Use photo resistors to make a color- finding robot –Spray with water pump –Grab with pinchers n Light Seeking n Sonar Avoidance of Obstacles n Other plans were dropped due to previously mentioned problems

Functional Diagram Mux Jstamp Sensor Board Jstamp Motor Board Sel1 Sel0 Sonar Hand-Made Color Sensor LED on/off Light Sensors Rotation Sensors Right Left Right Claw Water Pump RightLeftClaw Motors 9.6v Battery Transistor N-type 8A Left X0 X1 X2 X3 A4A2B5 GPIO-C Analog Mux

Software Flowchart Button Press Main Light Seek Squirt Green Find Color Sonar Avoid Left/ Right/ Front Back Up Turn Right Turn Left Go Forward Grab Red Found Circle for Strongest Adjust Direction Celebrate! Brighter Left/ Right Adjust Right Go Straight Adjust Left Sonar Avoid

What we learned n We improved our Java programming skills n We learned to debug a system, finding the faulty hardware/software component n We learned to work in a team in a industry-like setting n We learned better documentation skills

What We Would do Differently n We would investigate the availability of sensors before deciding to use them. n We would try to incorporate more functionality into the hardware.