Chillout Zone
Let's Make Robots!
Home

Servo

Robot
 
eagle030388's picture
By eagle030388
@ September 21, 2010
Navigates via 3 Sharp IR detectors

 

This robot uses Mark Tildens H-Bridge design for motor drivers. The brains of the robot is a HEX inverter that until the Sharp IR detects an object the motors go forward.

This is the schematic for the SHARP IR  detector.  I have all the schematics, but i dont have a scanner to get it off of my notebook so i apologize for the quality.  the state of the motors are either forward or reverse depending if the IR detects any object.  output 2 and 4 go to the forward and reverse input of the h-bridge. 

 

I used the wheels of an old model airplane and just screwed them to the servo hornes. 

 The servos are hacked...basically means i took out all the fancy stuff and just hooked two wires straight up to the positive and negative terminals of the motors.  Also i had to take the mechanical stop out of the gear so that it could make a full 360 revolution. 

 <object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/CtLN8BoMIlQ?fs=1&amp;hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/CtLN8BoMIlQ?fs=1&amp;hl=en_US" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

 

Here is a picture of the electrics.

H-bridge upclose and personal.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
By eagle030388
@ Wed, 2010-09-22 00:08
eagle030388's picture

haha voodoobot is funny

By webmaster
@ Wed, 2010-09-22 09:35
webmaster's picture

Yes he is :)

However, he was referring to your use of capital letters, just as I was earlier, when I wrote to you about it. It is called "Shouting" in internet lingo, sorry if I was not clear in my mail ;)

I have now edited your entire post for you, and transformed the places where you wrote with CAPITAL LETTERS ONLY to a more pleasant format to read.

Please, in the future, do not use Caps Lock, do not write with capital letters where it is not needed. And I will repeat myself from when I wrote to you; It is all in the Rules (top menu), that I will ask you to read, and which you where asked to read upon registration.

Thank you for joining in on the site, and sorry for the non-robot-related welcome :)

 

By OddBot
@ Tue, 2010-09-21 09:00
OddBot's picture

Thanks for posting your robot on LMR. Aside from reading the rules and not SHOUTING your post at us could you post more information. Schematics would be a good start if it is a beambot. Tell us why you made it, how you made it and how you overcame any difficulties in making it.

More photos are also important.

By Krumlink
@ Tue, 2010-09-21 04:34
Krumlink's picture

Caps lock broke?

By voodoobot
@ Tue, 2010-09-21 05:57
voodoobot's picture

Oh come on KL, can't you tell it's the hex inverter at work here....