ENGR 50 Robotics Woody Knapp Monterey Peninsula College Robots in the News air surveillance drone Eldercare robot Robots at MPC MPC Team competes in National ROV Competition 2013 Team forming soon ENGL 38 More or Less Than Human? Online class studies sci-fi implications of tech ENGR50 Robotics Rachel, Tom and Ross, MPC ROV Team Members From Metropolis to The Matrix, this MPC class investigates classic, historical, popular, and contemporary films, TV, and associated literary works which ask, “What is a human being . . . and what isn’t?” Considerations include representations of utopias and dystopias, computer technologies and networks, artificial intelligence, reproductive technologies, virtual reality, and genetic engineering. The emphasis will be on how formal qualities affect/effect meaning and interpretation. In this class we use a kit from Parallax, Inc. • • • • • • • Build circuits Write programs Draw pictures with bots Respond to whiskers Respond to light levels Use IR LEDs in navigation Maze competition or [other?] NO PURCHASE NECESSARY But if you want: (optional) Parallax Boe-Bot Full Kit, cost $149 Group discount rates may be available—let me know if you plan to buy one Order online: http://www.parallaxinc.com/ Or call: 1-888-512-1024 You do need: A thumb drive (or DropBox acct) for shuttling programs Robotics Tool Kit • • • • • • • • PC for writing and downloading programs "Brain" or Microcontroller (BASIC Stamp, Lego Mindstorms, PIC, Arduino) Programming interface (serial cable, infrared (LEGO), wireless) "Skeleton" or chassis, arms "Muscles" or wheels, motors, relays Energy source—batteries Sensors: – Speaker, Bumper switch, Photoresistor, Infrared headlights What's a Microcontroller? • An ultra minimal computer chip that normally performs a single set of tasks in an embedded system (automatic doors, airplane avionics) • Unlike PCs, microcontrollers have special ports to enable simple interfaces with the outside world (input/output) • For every PC there are 12-18 microcontrollers in the world Microcontroller vs. Microprocessor Progrm Space PC (Intel Duo) BASIC Stamp Arduino Uno Lego RCX Clock 3 GHz 20MHz 16 MHz 16 MHz Long term "RAM" Storage 1GB Hard Drive 2 KB 2 KB 32 KB 32 KB 1.2K per prog (up to 5) PIC16F84 An excellent source of detailed information: The Robot Builders Bonanza, Gordon McComb (RBB) Cost $350 $50 $30 $100 Microcontrollers Can Teach You About: • Digital circuits • Use of: resistors, capacitors, LEDs, diodes, transistors • Cook book circuits are readily available (RBB) • Control theory -- feedback, proportional control • Computer architectures • Test & calibration • Software -- compact notation for expressing solutions to problems • Learning by Osmosis Many Academic Fields Related to Robotics Computer Science Electrical Mechanical Engineering Engineering Perception Motion Planning Sensors Control Mechanisms Mechanics Lab 0 -- Music Programming • • • • You can hear your program running! Variables If statement For next loops • Explore the structure of music and software Lab 1 Navigation and Drawing Lab 3 Navigating with Photo Resistors Lab 4 Infra Red Detectors Final Design Project Along the way you’ll also learn about… Light Emitting Diodes • A type of diode designed to emit light • Can be visible or IR • 2 V voltage drop • Typically draws 20 mA (0.020 A) • Schematic Symbol… How to Read a Circuit Schematic IT 3W i1 6V i2 6W 6W How to build Circuits on Breadboard Vin (6 V) Vss (Ground) Today, a brief trip to Mars • We check out kits – – – – – Grab a kit Run Stamp software on PC Plug in serial cable Power up bot Download MarsRover.bs2 program • Modify this line to make bot move in a pattern – data "FFFBBLFFRFFQ" A Simulated Mars Rover Mars Sequencing Team (You) • Develop sequences to take Rover to visit a rock (or three) over several Martian days (called “sols”) • • • • • Five tries (1 per “Sol”) 5 points for hitting a rock -1 point for each Sol -3 points for rolling off table! Your Command Sequence is made of Letters: FFrBbRFfLlFLFQ Sequence Key: • • • • • • • • f = 2 inches forward b = 2 inches backward l = 20 – 30 degrees left r = 20 – 30 degress right F = 10 – 12 inches forward B = 10 – 12 inches backward L = 80 – 100 degrees left R = 80 – 100 degrees right • All measurements are approximate! The Rules 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Table is “Mars” Measure rock distances Design your sequence Test at your work area (Earth) (no testing on the table!) Carry bot to “Mars” Start in the landing zone Wherever bot stops, place your team’s postit note. Report score to instructor. Take bot back to earth Plan next day’s sequence Resume bot at postit note from last sol etc Happy Driving!