Author Topic: 50$ robot - will these parts do?  (Read 2700 times)

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Offline morglumTopic starter

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50$ robot - will these parts do?
« on: October 25, 2010, 11:37:17 AM »
thanks!

1- Servo by PArallax]    900-00008-ND
2-  PDV-P5001Photocells:[/url]  8k ohm to  12k ohm (light) 300 k ohm  dark
3-  Resistor for photocell is  sqrt(12000 ohm * 300000ohm) = 60 000 ohm, correct?
4 )  I'm planning to get this roboduino (http://cgi.ebay.ca/Roboduino-Servo-Ready-Freeduino-Atmega168-/280536722940?pt=LH_DefaultDomain_0&hash=item41514aadfc)
  a) good idea?
  b) what connectors should I get to connect my photoresistors/servos/batteries to the robouino?  I looked at the "wire connector tutorial" .. should I get the 3-pin connectors from digikey (WM2801-ND 3 pin housing ) since most of roboduino's pins come in group of three?
 --- also would these jumper wire fit?? (http://cgi.ebay.ca/One-Pack-60PCS-Solderless-Bread-Board-Jumper-color-wire-/160441288042?pt=LH_DefaultDomain_2&hash=item255b0bc56a)

thanks

edited to make clearer --- please ignore next 6 posts..

thanks
« Last Edit: October 26, 2010, 12:19:07 PM by morglum »
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Offline Soeren

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Re: 50$ robot - will these parts do?
« Reply #1 on: October 25, 2010, 12:50:05 PM »
Hi,

Quote from: morglum on October 25, 2010, 11:37:17 AM
1- Servo by PArallax
2- Photocells: 4k ohm to 150 k ohm
3- 390 ohm resistor instead of 340
4- 1.5k ohm resistor instead of 1.62k ohm
5- arduino instead of ATmega8 AVR  and 28 pin DIP socket
Your links are dead.

Apart from item #4, which needs to be adapted to the specifik LDR (item #2) you should be OK, but you probably have to modify the program (or make a new one).
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Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline morglumTopic starter

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Re: 50$ robot - will these parts do?
« Reply #2 on: October 25, 2010, 01:44:45 PM »
Hi,
Thanks for replying.

The links work here, but here they are again:

servo:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&itemSeq=92229681&uq=634236058280301585
SERVO CONTINUOUS ROTATION, Manufacturer Part Number   900-00008
 
photocells:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&itemSeq=92234341&uq=634236068889371536

cheers!
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Offline Soeren

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Re: 50$ robot - will these parts do?
« Reply #3 on: October 25, 2010, 01:54:34 PM »
Hi,

Yes, but I don't have the cookies you got from the session.
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Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline GearMotion

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Re: 50$ robot - will these parts do?
« Reply #4 on: October 25, 2010, 04:41:34 PM »
Quote from: morglum on October 25, 2010, 01:44:45 PM
Hi,
Thanks for replying.

The links work here, but here they are again:

servo:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&itemSeq=92229681&uq=634236058280301585
SERVO CONTINUOUS ROTATION, Manufacturer Part Number   900-00008
 
photocells:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&itemSeq=92234341&uq=634236068889371536

cheers!


Send the digikey part numbers. They all end in "-ND"
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Offline morglumTopic starter

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Re: 50$ robot - will these parts do?
« Reply #5 on: October 25, 2010, 05:32:48 PM »
oops - sorry guys.

Servo
 900-00008-ND

photocell
PDV-P8101-ND

cheers
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Offline morglumTopic starter

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Edited OP -- please refer to the OP
« Reply #6 on: October 26, 2010, 11:53:18 AM »
Please read the edited OP, and ignore all messages between the OP and this one, as they only show how much of a newbie I am :)
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