Session 11 Introduction to Robotics and Programming mbot. >_ {Code4Loop}; Roochir Purani

Transcription

1 Session 11 Introduction to Robotics and Programming mbot >_ {Code4Loop}; Roochir Purani

2 RECAP from last 2 sessions 3D Programming with Events and Messages Homework Review /Questions Understanding 3D Programming environment, events, and objects. Understanding of Camera movement through the story scene. Progress check on Project work and presentation questions.

3 Introduction to Artificial Intelligence (AI) In order to perform tasks, a robot needs to be able to know what to do. This means it must be able to think and make decisions. In computers, this is called Artificial Intelligence orai. What do you think it means to be intelligent? Can you give some examples of intelligent things?

4 Artificial Intelligence (continued) Can you give some examples of things that possess artificial intelligence? Let's watch more movie clips that show Hollywood's interpretations of artificial intelligence and robotics. While you watch the movie clips, think about how Hollywood's version is the same as and different from the definitions we have just been discussing.

5 Artificial Intelligence (AI)! Artificial Intelligence (2001) This trailer shows a bit about a robot who looks like a boy and provides the opportunity to discuss the possible fine line between a highly intelligent robot and a human. What makes a boy real as opposed to a robot? Can you compare this story to the classic story Pinocchio?

6 Artificial Intelligence: Discussion! How is Hollywood's version of robotics the same as what we have discussed here?! How is it different?! How is Hollywood's version of artificial intelligence the same as what we have discussed here?! How is it different?! How has Hollywood's vision of robotics changed in the last 100 years?

7 Introduction to Braitenberg Vehicles We have discussed that robots need intelligence in order to be controlled. We often use the term behavior to describe how the controller works and reacts to its environment. There are many, many different ways to design robot behaviors. Here we will look at one simple way of defining behaviors, created by a psychologist named Valentino Braitenberg.

8 Braitenberg Vehicles (continued) Valentino Braitenberg described a series of vehicles, from simple to more complex. Each vehicle has one or more abstract motors and sensors. Here is what a simple "Braitenberg Vehicle" looks like: Its sensors are in the front Its motors are on each side

9 Braitenberg Vehicles (continued) In order for a robot to move, there must be physical connections (e.g., wires) between the robot's sensors and its motors. These connections can be: Positive A sensed property has a positive effect on a motor by providing more power in relation to higher sensory input. Negative A sensed property has a negative effect on a motor by providing less power in relation to higher sensory input.

10 Braitenberg Vehicles (continued) Braitenberg labeled robot reactions in terms that describe how humans react. The next slides shows one examples of simple vehicles that Braitenberg created andnamed: "aggression" "fear" "love" "exploration"

11 Braitenberg Vehicles: Aggression Aggression is a vehicle that speeds up as it gets closer to an input source.

12 Braitenberg Vehicles: Fear Fear steers quickly away from an input source.

13 Braitenberg Vehicles: Love Love is a vehicle that slows down as it gets closer to an input source.

14 Braitenberg Vehicles: Exploration Exploration turns away from an input source slowly, as if looking for another source to investigate.

15 Robotics Introduction Robots come in different sizes and shapes because of the functions and use that they provide to humans. Input Devices: Sensors provide input to the computers. Output Devices: LED s, Display screens, motors, actuators, servo motors Processing Unit: CPU is an ARM processor on Arduino Uno motherboard Multiple sensors on board : Light sensor Sound Sensor Multiple LEDs, Button, Buzzer for sounds, Wi-fi Connection to connect to the One computer Next slide shows the main computer picture.

16 Arduino mbot vehicle onboard sensors and external sensors

17 mbot Robot Movement : Activity! Now you will experiment with an mbot robot vehicle using Programming language Scratch and Robot extension to connect to mbot! Follow the instructions on the lab worksheet.! The lab has two parts: 1. Each student identifies the part of the robot including sensors 2. Object collision hands on 3. Each student program the movement to complete the robot route/journey

18 Scratch MakeBlock mbot Robot commands

19 Robot Programming activity Step 1 Make the robot move forward at speed 50 Turn LED Light Green Step 3 Make the robot turn right Turn LED Light Red Step 5 Make robot read Ultrasonic sensor values Step 2 Make the robot turn left Step 4 Make the robot reverse (backward) Make sound C4, E4 C4 E4 Step 6 Collision detection and avoidance Robot act based on the value Move forward check for condition If Reading value is < 5, Stop

20 Step 1, 2, 3

21 Robot Collision detection and avoidance logic Flow chart

22 Robot Programming Object Collision detection and avoidance Step 6

23 Homework Identify 5 different kinds of robots that you may have seen or heard about and identify their function/what they are used for. Continue to refine your project and presentation. Setup 1-on-1 time.

24 Session 11 Extra How to Present Guide Hints and Tips >_ {Code4Loop}; Roochir Purani

25 Organizing your presentation Duration of Presentation: 10 Minute or less per Student Here are some steps to follow when organizing your project presentation: Make sure your project is fully tested and complete. Plan to demonstrate how you used the concepts learned in this course. If it is a group presentation, plan who will do which parts of the presentation. Be clear and Loud so everyone can hear you. No hands in the pocket Look at Audience (they are all familiar to you, and feel comfortable) No Umm s and Uhh s Try to avoid these if possible. Say Short and Clear Sentences.

26 Preparing Presentation Guidelines Create a presentation outline to plan your complete animation project presentation. : Introduction, Presentation of the project, Conclusions Section 1: Introduction Introduce yourself. Gain your listeners attention. Say the theme of the project. Give the overview of your project. Give the audience a reason to listen to the presentation. Say why you picked it and what you liked about it. What is the usefulness of the project and may be One or Two features.

27 Project Presentation Guidelines Section 2: Presentation of the project Organize the presentation in a logical flow. Show all capabilities of your project. User screens, navigation, action, menu, help, documentation etc. Demonstrate how different course concepts were used in the over project. e.g. Use of Flow chart, Screen design (Show printout OR on the Screen) If-then-else, Forever loop, variables and data, events and messages testing, debugging, documentation, If possible, include helpful transitions between different topic. e.g How does a different scene work? How does user get score, what happens when some events occur?

28 Project Presentation Guidelines Section 3: Conclusion Summarize the project in a memorable way. Motivate the audience to respond. Ask questions : Did you like it? What would you like to see different? Have the audience Try and Share with others!! Provide closure. Thank the audience for listening.

29 Thank you!