Devoxx4Kids NAO Workshop

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Information about Devoxx4Kids NAO Workshop

Published on February 19, 2014

Author: steveonjava



English version of the Devoxx4Kids workshop deck to teach programming using the NAO humanoid robot. (Credit to Daniel De Luca for content creation and Nicolas Rigaud on translation)

NAO Programming a humanoid robot

Introducing NAO • But I'll let him introduce himself! 2

Choregraphe Software • NAO Visual Programming – Allows users of NAO to create and edit simple movements and interactive behaviors. • Demonstration 3

NAO's Mission 1. Make NAO walk towards you and stop in front of you. 2. NAO asks you to give him the ball and asks you where to put the ball. 3. NAO looks around and finds the place you identified. 4. NAO goes ball down. there, and places the 4

Preparation • • • • Start Choregraphe Create a new project Load the Library: Devoxx4Kids.cbl Place and configure boxes – Set Speech Language – Set Reco. Lang. – Tactile Head • Connect the boxes to the starting point. 5

Exercise 1 • Make NAO walk towards you – Infrared Sensor (Eyes) – Sonar – Eye Color 1. Create a new box in the root plane 1. Change the Name: Walk to Person 2. Change the Image: move.png 3. Type: Flow Diagram 6

Exercise 1 (continued) 2. In the new box Walk to Person 1. Make NAO stand (Stand Up) 2. Walk Tracker 1. 2. Green eyes when NAO finds you (Eye LEDs) Red eyes when he doesn’t find you (Eye LEDs) 3. Use NAO’s sonar 1. 2. Detect an obstacle (you) Stop the Walk Tracker 3. Link the sensor on NAO’s head to the new box 7

Exercise 2 • Ask for the ball – Raise NAO's right arm and open his hand – Make NAO speak – Make NAO ask a question understand • NAO asks a question with 2 possible answers – Lower NAO's arm and close his hand 8

Exercise 2 (continued) 1. Create a new box in this plane 1. Change its name (up to you to choose) 2. Type: Flow Diagram 2. Add 2 outputs 1. 2. 3. 4. Double-click on the new box Click on the (top right) Name for output 1 : Chair Name for output 2: Box 9

Exercise 2 (continued) 3. Change the color of the eyes 4. Raise NAO’s right hand (library) 1. Box : Raise Right Hand 5. Make NAO speak with the Say box 1. NAO must ask for the ball 10

Exercise 2 (continued) 6. NAO asks where he should place the ball 1. Create a new box • Type : Flow Diagram 2. Add a Choice box • Edit the output of the box – Rename the output answer into answer1 » Type : Number : 1 » Nature : Punctual – Add a second output : answer2 » Type : Number : 1 » Nature : Punctual • Double-click on the box to enter the question and the answers 3. Make NAO repeat the answer you gave him 11

Exercise 2 (continued) 7. Make NAO lower his arm and close his hand – Go back to the root plane. – Add a Close Right Hand box • Link both outputs to the box 12

Exercise 3 • NAO looks for the right place to drop the ball – Turns his head – Looks for the right NAOMARK – Says he found the right place – Says he hasn’t found the right place 13

Exercise 3 (continued) 1. Create a new box in the main place 1. Change name : Research 2. Type: Flow Diagram 2. Add 1 output 1. Double-click on the new box 2. Click the (top right corner) 3. Name for the output : Found 14

Exercise 3 (continued) 3. In the new box, add: 1. 2. 3. 4. 5. 6. 7. A NAOMark box A Center Head box A Move Head Left box A Move Head Right box An IF box Two Say boxes Three Wait boxes (Change timeout to 4,000000) 15

Exercise 3 (continued) 4. Connect the starting input of Research box to: 1. Center Head 2. NAOMark 3. A wait box 5. Make NAO’s head turn from left (Move Head Left) to right (Move Head Right) 6. Connect the NAOMark to the IF box 1. Configure the IF box : 1. 2. Condition Operator : = Value to compare : 68 16

Exercise 3 (continued) 7. Conect the output output_then of the IF box to the Input : 1. onStop of boxes Wait, Move Head Left, Move Head Right 2. onStart of a Say box 1. 2. Use Say box to say that NAO has found a box to drop the ball Don’t forget to make NAO say he hasn’t found any box to drop the ball. It’s up to you to find out how to do this! 8. Then get back to root plane and do the same thing for the chair (copy/paste + modifications). 17

Exercise 4 • NAO goes to the required place to drop the ball – Walk to the box or the chair (NAOMARK) – Foot sensors to avoid collision with the box or chair – Drop the ball 18

Exercise 4 (continued) 1. Create a new box in the root plane: 1. Edit name: Walk to NAOMark 2. Type: Flow Diagram 19

Exercise 4 (continued) 2. In the new box, add: 1. A Mark Walk Tracker box 2. A NAO facing Mark box 3. A Bumpers box 4. A Move To box 5. A Say box 6. 2 Wait boxes (Change timeout to 0.500000) 7. 2 Eye LEDs boxes 8. A Drop Ball Move Back and Sit box 20

Exercise 4 (continued) 3. Connect the starting point of Walk to NAOMark box to the input of NAO facing Mark 4. Connect the output of NAO facing Mark to the onStart input of: 1. Bumpers : 1. 2. 3. 2. NAO must walk 2 steps backward Stop all other boxes NAO must say he found the place "Im in!" Mark Walk Tracker 1. Eyes turn to blue if NAOMark is no longer detected 1. 2. 3. 2. Output: onLost connected to Input onStop NAO should take a step NAO must say he has arrived "Im in" Eyes turn to green if NAOMark is detected 21

Exercise 4 (continued) 5. In the root plane, add the Drop Ball Move Back and Sit box and connect it to the Walk to NAOMark box 22

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