from rgb led laboratory to servomotor control with websockets and iot as educational tool (rev 2015)

From RGB led laboratory to servomotor control with websockets

and IoT as educational toolGerman Carro Fernandez, Elio Sancristobal Ruiz, Manuel

Castro Gil*, Francisco Mur Perez

Electrical and Computer Engineering Department Spanish University for Distance Education (UNED)

Madrid, Spain

http://www.ieec.uned.es/Research on Technologies for Engineering Education http://ohm.ieec.uned.es/portal/

German Carro Fernandez [email protected]

Index• Introduction

• First there was light

• Then was the wheel

• Control your device using IoT capabilities

• Finally was the robotic arm

• Conclusions



Introduction- UNED are working long time ago on useful eLearning

- Technology of today let increase the develop of reusable remote laboratories on engineering

- This study was born from the idea to bring robotics and electronics to the students to close them to technology using IoT tools

OR

knowledge is the key!Let’s go to see how!

Laboratorios desarrollados: Go-Lab (LedRGB, Brazo robotizado) y robots








• Conclusions



First there was light



New hardware added: Raspberry Pi

New software used:

Javascript

New protocols used:

Websockets







• Conclusions



Then was the wheel



Two possible options were considered:

Javascript and Node.js

Tornado and Python

First was chosen because counts with Socket.io library, very useful for our interests.







• Conclusions



Control your device using IoT capabilities



Objective: Control remotely

devices, information and events using IoT

How?: Server hosted on the

Raspberry Pi has direct communication with the Arduino UNO via USB.

Client side receives and manage settings using REST protocol


Control your device using IoT capabilities



Previous test using the system:https://www.youtube.com/embed/bfNULdKcQFk

https://www.youtube.com/embed/bfNULdKcQFk









• Conclusions



Finally was the robotic arm



Move the system to a robotic arm laboratory:

Increasing the number of websockets channels (one for each service)

Adaptating of Arduino source code to manage the 6 services available (led, clip, wrist, elbow, shoulder and base).

Modificating REST system customizing JSON’s content (embeded all information individually by service)


Finally was the robotic arm



Develop, and display it into, an Inquiry Learning Space (ILS) to use for educational environments.

In this case even with a virtual laboratory to compare the results.

Golab Project environment ILS link: http://graasp.eu/ils/54d49bcd479265d7425bfa95?lang=en

http://graasp.eu/ils/54d49bcd479265d7425bfa95?lang=en

http://graasp.eu/ils/54d49bcd479265d7425bfa95?lang=en







• Conclusions



Conclusions

New technologies greatly facilitate the deployment of information, data and services using the Internet

The philosophy of IoT allows to display different remote laboratories on the Internet and convert them into useful tools for the educational environment

Teachers have seen how technology can help them teaching on their sessions with new ILS, and the students are a little more motivated to learn due to the novelty of using a robotic (or electronic) tool remotely.




Conclusions

Other laboratories are coming using this technology and philosophy



Electromagnetic Crane laboratory Led Cube laboratory

More…

Thank you for your attention! If you have any question, please do not hesitate to send it me at:

[email protected] [email protected]

German Carro Fernandez, Elio Sancristobal Ruiz, Manuel Castro Gil*, Francisco Mur Perez

Electrical and Computer Engineering Department Spanish University for Distance Education (UNED)

Madrid, Spain


from rgb led laboratory to servomotor control with websockets and iot as educational tool (rev 2015)

Engineering

engineering education

german carro fernandez

spain http

robotic arm conclusions

brazo robotizado y robots

distance education uned

lab ledrgb

iot capabilities