Author Topic: BRUCE WHEELS - Multifunction Robot  (Read 1697 times)

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Offline jcmatosTopic starter

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BRUCE WHEELS - Multifunction Robot
« on: March 28, 2012, 12:10:47 PM »
Hey Guys,

Check this robot that I've made:

Bruce Wheels - Multifunction Robot


It has several functions, and it is controlled by a single microcontroller, using C language

Hope you like
« Last Edit: March 28, 2012, 12:26:31 PM by jcmatos »

Offline Mastermime

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Re: BRUCE WHEELS - Multifunction Robot
« Reply #1 on: March 28, 2012, 01:47:19 PM »
Nice job!  Very impressive!

Offline infurl

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Re: BRUCE WHEELS - Multifunction Robot
« Reply #2 on: March 28, 2012, 02:55:12 PM »
Beautiful work, thanks for sharing!

What kind of sensor(s) are used for "hand following" mode? In fact, could you describe all the different sensors that you have on the robot and how they are used please?

In the video I can see a pair of Sharp infrared distance sensors on the front and a pair of what I assume are infrared proximity sensors down low in front of the wheels. Motor control appears to be very accurate as well, so I expect you've got some on the wheels or motor shaft as well.

Offline jcmatosTopic starter

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Re: BRUCE WHEELS - Multifunction Robot
« Reply #3 on: March 28, 2012, 03:46:04 PM »
Hi infurl,

Thank you for your reply (and Mastermime too, btw)

The sensors used for this robot are:

Light sensor (for turning on the leds when it's dark)
Electrec Mic (for detecting the whistle frequency)

2 Mid-Range Sharp sensors, like you said - http://www.sparkfun.com/products/242

2 Optical detector - http://www.sparkfun.com/products/246
These are used for line following, for area measurement and to avoid falling down from a table (for example) when in autonomous mode (represented by the black line in the bottom).

The sensors output an analog signal, that connects to the analog inputs of the microcontroller. So I get the distance value, instead of only 0v and 5v. So this is useful for hand controlling. If the hand is near the sensor, it moves backward, if is far away, it moves to front and if it doesn't detect anything, it stops.

I don't have any sensors in the wheels or in the motors. Just normal stepper motors.

Any question, please ask.

Offline jkerns

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Re: BRUCE WHEELS - Multifunction Robot
« Reply #4 on: March 29, 2012, 07:34:56 AM »
Nice job whistling on key too!!!  ;)
I get paid to play with robots - can't beat that with a stick.

http://www.ltu.edu/engineering/mechanical/bachelor-science-robotics-engineering.asp

Offline kplee

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Re: BRUCE WHEELS - Multifunction Robot
« Reply #5 on: May 10, 2012, 08:07:18 PM »
Hi, i am interested on your robot 's whistling function, may i know how you did it.

regard
Michael 

 


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