1. By Alaa Dwikat Mohammad tami Supervised by Dr. Samer Arandi
RoboArm By
Alaa Dwikat
Mohammad tami
Supervised by
Dr. Samer Arandi

2. Content Overview Mechanical part Sensors Communication Controller part
Conclusion

3. Overview
RoboArm is a machine which allows the user to capture items (stuffed toys, balls ) that are placed in a round.
The player wears a special glove and moves his hand left – right, forward - backward and closes his fist in order to control wirelessly the moving arm that ends with a gripper.

4. Overview
Our project can be used to control a group of components coordinated together to complete a specific tasks.
Quarantine Environments (e.g. Chemical laboratories)

5. Content Overview Mechanical part Sensors Communication Controller part
Conclusion

6. Mechanical part

7. Mechanical part
Material
Design
Motors

8. Material of structure We used PVC It’s very light
can be easily clipped

9. Design
4-degree-of-freedom robotic arm

10. Motors
Two types of motors used
DC motor
Servo motor

11. Motors
DC used for rotating the structure

12. Motors Servo motors It’s an angular position controlled
Generate pwm to control the angel/position

13. Motors
Servo motors

14. Content Overview Mechanical part Sensors Communication Controller part
Conclusion

15. Sensors
Player hand act as a main controller of all mechanical part components.
Two type of sensors are used:
Flex Sensor.
Accelerometer Sensor.

16. Sensors Accelerometer Sensor
Accelerometer is a device that measure acceleration in one, two, or three orthogonal axes [8]. The ADXL345 is a low-power, 3-axis accelerometer modules with both I2C and SPI interfaces

17. Sensors Accelerometer Sensor Small and thin component. low power.
Complete 3-axis

18. Sensors
Flex Sensor
It’s simply a variable resister that changes value depending on its bend

19. Content Overview Mechanical part Sensors Communication Controller part
Conclusion

20. Communication
Wireless XBee

21. Communication Wireless XBee
Send results of sensors (located on the glove ) to microcontroller that control the mechanical part.
Frequency 2.4 GHz ( 16 channel)
Data rate 250 Kbps
Range 30 meters in door, and can reach up to 90 m outdoor.
Point-to-point, point-to-multipoint and peer-to-peer topologies supported.

22. Content Overview Mechanical part Sensors Communication Controller part
Conclusion

23. Controller part
Sender Circuit
Receiver circuit

24. Controller part

25. Content Overview Mechanical part Sensors Communication Controller part
Conclusion

26. Conclusion
We are able to simulate user hand movement by sending sensors data to the microcontroller that controls arm robot.

27. Future Work Provide an additional degree of freedom by add more axes.
Using another module for wireless connection, so that the cost be cheap
Finally we can design five-fingers hand instead of a gripper.

28. Demo Time