Author Topic: $50 Robot  (Read 4471 times)

0 Members and 1 Guest are viewing this topic.

Offline LoriathTopic starter

  • Jr. Member
  • **
  • Posts: 7
  • Helpful? 0
$50 Robot
« on: July 26, 2009, 02:56:09 PM »
So my previous post of pan/tilt suggestions has turned to be a little advanced for me, so i've decided to start with the $50 robot. I have ordered all the digikey components and in the process of ordering the photoresistors from radioshack. They are 2.99 for the photocells but 6.5 for shipping...so im debating whether to look elsewhere. will these do the trick?

http://www.thesource.ca/estore/product.aspx?langauage=en-ca&product=2761657

I have a source 2 mins from my house that have them in at that price, whill they do the same as whats in the $50 robot parts list?
Logged

Offline MangoBot

  • Robot Overlord
  • ****
  • Posts: 185
  • Helpful? 1
    • BeginneRobot
Re: $50 Robot
« Reply #1 on: July 26, 2009, 03:50:11 PM »
yes, as long as you use the two same photocells then any from any place will work
Logged

Offline SmAsH

  • Supreme Robot
  • *****
  • Posts: 3,959
  • Helpful? 75
  • SoR's Locale Electronics Nut.
Re: $50 Robot
« Reply #2 on: July 26, 2009, 04:30:38 PM »
any will do as long as they have the same resistance values.
Logged
Howdy

Offline Razor Concepts

  • Supreme Robot
  • *****
  • Posts: 1,856
  • Helpful? 53
    • RazorConcepts
Re: $50 Robot
« Reply #3 on: July 26, 2009, 06:06:16 PM »
You do not need them both to have the same resistance values as long as you calculate the proper resistor value.
Logged

Offline wil.hamilton

  • Robot Overlord
  • ****
  • Posts: 207
  • Helpful? 6
  • rtfm
Re: $50 Robot
« Reply #4 on: July 26, 2009, 08:31:16 PM »
there are many ways to do a photocell type circuit, you could use a photodiode (ir) or even a IR emitter.  But yes, those would work.
Logged
use the google.  it's your friend.

Offline MangoBot

  • Robot Overlord
  • ****
  • Posts: 185
  • Helpful? 1
    • BeginneRobot
Re: $50 Robot
« Reply #5 on: July 26, 2009, 08:31:52 PM »
but in the end you're are making them the same(kind of) so using the same would make it a little easier and cheaper
Logged
 

data_list