1. Maker Education Manipulator
A guest education robot

2. The manipulator skills competition
(Lesson 15, Lesson 16)

3. CONTENTS I. Final review II. Competition introduction
III. Grouping and discussion
IV. Competition preparation
V. Official competition
V. Competition summary

4. I. Final review

5. Responder link
In order to test whether you have kept in mind what you learn, one responder link is coming here, you may not read the handbook or notes in the responding process, let’s see who responds quickly and accurately! Are you ready?

6. Part of experience The main structure of the manipulator?
In the experience course, which functions of the manipulator have we experienced?
Which kits of the manipulator have been used in these functions?
What is the name of the software that controls the Dobot manipulator in the computer?
What are the three modes of the mouse control manipulator?
What is the communication transmission technology used for handle control?

7. Part of experience
Which modes are available for point-to-point movement in the teaching play? What is the difference between them?
In the writing & drawing function, the pen tip is required to fall onto the paper accurately to work out the clear text, what is the most critical parameter to be adjusted?
What is the basic principle of 3D printing?
What is the saving format of the 3D model file designed?

8. Part of programming
What is the name of the graphical programming software used in DobotStudio?
What are the applications we have achieved in the programming lesson?
What are the cycle structures we have learned?
Which kind of cycle should be used in automatic cycle stamping program to achieve a certain number of stamping?
What is the difference between “when” cycle and “till” cycle?
If many modules need to be programmed for a frequently-used function, what method can make the program more concise?

9. Part of application
What is the way for the manipulator to connect with the external module?
Which four models can be set for EIO interface in DobotBlockly?
What are the manipulator applications we have designed? What external devices are used respectively?
How to distinguish the positive and negative poles of a LED light?
How to achieve the reverse movement of the pipeline conveyor belt in DobotBlockly?

10. II. Competition introduction

11. Subject: the joy competition for sorting and stacking objects on the pipeline
Competition form:
The whole class will be divided into two groups for the competition (for example, the class has 20 people or less), each group will complete the task to design multiple links by means of multiple manipulators as well as devices and accessories like pipeline, building blocks, etc., a manipulator will be used in each link, and the two adjacent links are linked each other, in which different knowledge or skills are required, so you have to cooperate with each other to complete all aspects of the task.
Note:
Besides those involved in programming and operation of the competition items, the members of the group can be arranged to observe and guide the competition process, and also can be arranged to watch the placement of props, devices, etc.

12. Link design 1
For the stacking within the warehouse area, three layers of building blocks in red, green and blue are available randomly, you can control the manipulator 1 with the handle 1 to pick up the building blocks in turns and handle them to the top of the slope 1, and then the building blocks slide down from the slope 1 and stays at a fixed position at the bottom of the slope 1; (1-2 members recommended)

13. Link design 2
An infrared sensor is provided nearby the fixed position at the bottom of the slope 1, the manipulator 2, after sensing the building block through the infrared sensor, moves there automatically to pick up the block and handle it onto the pipeline, the pipeline transports the block to the other end which is connected with the slope 2, the block slides down from the slope 2 and stays at a fixed position at the bottom of the slope 2; (2-3 members recommended)

14. Link design 3
A color sensor is provided nearby the fixed position at the bottom of the slope 1, the manipulator 3 senses the color of the blocks through the color sensor, and then sort the blocks to the storage area of the blocks in red, green and blue according to their colors; (2-3 members recommended)

15. Link design 4
After the blocks in red, green and blue have been correctly sorted at the designated storage area, the last member uses the Bluetooth handle to control the manipulator 4 equipped with a sucker to move the blocks to the storage area for stacking at the fastest speed, and the competition will be completed after three blocks are stacked in the sequence of red, green and blue from top to bottom. (1-2 members recommended)

16. III. Grouping and discussion

17. Grouping and discussion
Free combination is recommended for grouping, the whole class will be divided into two groups, each group elects a group leader who is responsible for the coordination of task allocation and the specific division of labor within the group, the group members combine freely according to the requirements of the group leader, each member is responsible for at least one task or one link in the competition, and one member should act as the principal in one link or one task. The members should understand their respective responsibilities and division of labor, and the discussion of the method to achieve the various tasks should be made within the group.

18. Free combination!

19. IV. Competition preparation

20. Competition preparation
The slopes with the fixing devices at the bottom (2X)
The fixing device of the infrared sensor and the color sensor (1X, each)
Design and setup of devices
Programming
Development: operation method of the color sensor
Operation and exercise of the competition links
Control the manipulator with the handle
Note:
The half classhour may not be enough to complete the setup of all devices and the competition preparation, and no more than 20 minutes will be reserved for the competition preparation and exercise before the official start of the game in the next lesson, so the students can proceed with the setup of related devices and programming after the class. 

21. Operation method of the color sensor
Firmware burning
There is a file named "Dobot_debug.hex" in the course file, we need to open the folder tools\Mcuisp in the root directory of DobotStudio, find and start the program Mcuisp.exe, find the file in the "Open File”, and then click "Start Isp", and after burning is achieved, start DobotBlockly to find the corresponding color sensor module in DobotAPI classification. 1
Mcuisp-Dobot interface
Note:
The updated version of DobotStudio may have integrated the function of the color sensor into the DobotAPI, so the firmware burning may or may not be required.
Color sensor module

22. Operation method of the color sensor
Connection of the color sensor
The color sensor used currently can only test red, green and blue accurately, and is connected through the Communication Interface at the base of the manipulator.
Operation of the color sensor
The color sensor is provided with four LED lights and one light receiving device, LED light emits the light, and the emitted light is reflected from the object, thus sensing the color of the object. When operating the color sensor, you need to place the color sensor close to the object to be tested, and 1-2mm is the best test distance. 2
Connection of the color sensor
Color sensor

23. Operation method of the color sensor
Operating principle of the color sensor
The principle for the color sensor to sense the color is very simple, the three values of RGB are obtained respectively by the color sensor: r, g, b, which represent the red, green and blue respectively, the numerical range is 0-255, them the three values are compared and the maximum value is the most approximate color. Therefore, the following program can be used to demonstrate and output the sensed color. 3
Example of the color sensor operation program

24. V. Official competition

25. Official competition
The competition will be started officially after the devices at all links are set up and placed by the two groups, the group members complete the debugging and the teacher confirms no error.
In the course of the competition, the two groups should begin the competition at the same time and should be time counted respectively, and in case of special circumstances, the time counting of one group can be suspended or the competition can be restarted, or the two groups restart the game with the agreement between them.
The two groups can designate a member to observe the competition process of the other group and to feedback any non-compliance operation method in a timely manner, so as to ensure a fair and impartial competition.
The teacher or a designated student will be responsible for time counting, the group who completes the game should raise his hand timely to stop the time counting, and the group who first completes all links of the game successfully according to the rules will win the game.

26. VI. Competition summary

27. Competition summary What have you learned in the game?
What is your role in the group?
The most impressive thing in the game?
What do you think is the reason for the success / failure of the game?
......

28. THANK YOU