OhBot Experiment

As a bit of fun and an excuse to play with the OhBot - I was wondering whether I could get it to produce an introduction to a module when hello is said by the user.

Features

• To move randomly with small movements.
• When the word hello is spoken it starts speaking (or appear to).
• Go to a standard starting point initially.

The video below shows the results.





Related links

Ohbot- social robot
OhBot (http://ohbot.weebly.com/)



All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.

Ohbot a social robot

I have just finished  building an OhBot (http://ohbot.weebly.com/); a robot face (see picture to the left - I fixed the cross-eyes later). This cool little kit actually comes with some very nice software, that includes face tracking and a Scratch-like blocks programming language.

One bit of advice is put as aside several hours to do this, my experience is takes quite a while to build (that might just be me though). It is worth it, when you see the head, eyes, etc moving it is very engaging. 

The site has links to all the software needed and some very useful sample programs.

This is nice engaging robot that comes with a user-friendly programming language. The finished robot reminds me a bit of Cynthia Braziel's Kismet robot (http://www.ai.mit.edu/projects/humanoid-robotics-group/kismet/kismet.html) from MIT in the 1990s. So this might also be a good introduction to the area of social robotics and, as at the time of writing this, only £99, a relative inexpensive way into this area.

All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.

Playing with Tickle and Mini-drone

Recently I bought a Minidrone Rolling Spider Parrot and used a beta version of the Tickle App (https://tickleapp.com/en-us/)  to control it.

This was the first time I have actual programmed something that flies and it is quite addictive having something you are controlling being able to move in all directions.

On the left is an example code used, essentially lift off, repeatedly move forward, turn and in the end land.

I wish the mini-drone had a little bit more battery time (I would suggest getting an extra battery).  Combining with the drone and the Tickle App does add something to the experience, rather than just control it directly (though that is fun).






All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.

Lego Mindstorms – Sentry Robots

Sameer Kumar Shrestha, Northampton

The report presents the dissertation on title Prototype of Sentry Robots for Advanced Security which includes the use of LEGO robots showing interaction between each other with the help of wireless communication medium in Bluetooth. The purpose of the work is to build a communication between multiple LEGO robots using the wireless technology. For this task, the NXT version of LEGO Mindstorms has been selected. It is because there is need of complex communication which is possible through wireless medium such as Bluetooth and also a suitable processing device for the proposed task which is present in the LEGO Mindstorms NXT. The report has also focused on the background information about the NXT system and its great flexibility with LeJOS NXJ as the programming platform. The outcome is the implementation of developed work with the use LEGO Mindstorms NXT and the LeJOS NXJ as programming platform. The task was approached with one LEGO NXT robot maintaining the distance between the object in the environment and searching the object by rotating in case of lost. After the completion of the first task, the next task was to study the communication behavior of multiple robots communicating with each other to fulfill the same job. For this, three NXT robots were taken and programmed in such a way that they form the shape of triangle and keep tracking the object.  All three of them send and wait for the information from each other and process this information to produce a suitable output, i.e. to respond to the action from each other. Thus, it was found that the implementation of several processes to multiple LEGO based communication had faults, due to the technical hitches with the communication technology and limitations of the NXT systems.

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All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.

Picobot - a swarm bot

One of the most interesting small robots on the market is the PicoBot from 4Tronix (http://4tronix.co.uk/blog/?p=708). 

These are small, relatively low-cost robots with a good range of basic sensors based around Arduino. A nice feature is they are quick to put together (5-10 minutes each for the two above).  The size, time to build and the radio modules make them an interesting option for playing with swarm robotics - if only I had the money.

Don't let the swarm robot idea put you off, as small robots to playing with programming they are good in their own right. Being small with the ultrasonic sensors gives them an non-threatening look; add in they have some build it programs to play with (select by buttons on the bot) to get you going without any programming.

Related Links

• Narinder's Swarm Robots
• mbots - graphical programming and Arduino
• Edge following CrumbleBot

All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.

Narinder's Swarm Robots

This time not my experimentation but by a colleague and student I was supervising.

Some interesting work has been developed by Narinder Singh (MSc Computing student and Technician) in the Department of Computing and Immersive Technology, University of Northampton. The work revolves around investigating the use of relatively simple robots, kilobots, to investigate swarm robotics.

The kilobots (http://www.k-team.com/mobile-robotics-products/kilobot) are relatively low-cost devices specifically designed for work of swarm/collective intelligence experiments.


Example:Dancing Kilobots 

For more examples go to: Kilobot videoss

Supervisor Scott Turner


opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.

Scratch Robot Arm

It is not physical but CBiS Education have release a free robot arm simulator for Scratch. 









Downloadable from their site http://www.cbinfosystems.com/cardboard2code_module2.aspx - it includes a Scratch project, guidance on Scratch along with an exercises in using the robot arm simulation and an exercise with teacher's guidance.

Left my son with it, asked him if he could make it do something if a new sprite is added and the gripper touched it (similar to the exercise in the notes). He went on to produce a sprite that when it is touched by the gripper, went on to change colour a few times. I could see this being potentially used in Coding Clubs within schools.

CBiS produce a physical version of this, details are available at  http://www.cbinfosystems.com/cardboard2code_module3.aspx




All opinions in this blog are the Author's and should not in any way be seen as reflecting the views of any organisation the Author has any association with.