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Author Topic: 50$robot resistor value... wich one is it ?????  (Read 891 times)

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Offline rabadswompeTopic starter

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50$robot resistor value... wich one is it ?????
« on: September 17, 2010, 06:45:16 AM »
 I can't figure the value of the resistor that is supposed to be soldered-in next to the led.
The parts list specifies 2 different resistors (in packs of 5) 1.62 k ohm and  340 ohm BUt the instructables steps don't mention the value...just to bend the metal pins 90, solder and not cut them off. Yes... it took just that to stop me in my tracks :(

at the same time, the resitors mounted just behind the photoresistors... what value are they ????

Also, I did order from digikey and got my resistors but none are the same colour as the on in the pic... values are as asked though.

please help
« Last Edit: September 17, 2010, 07:00:25 AM by rabadswompe »

Offline rabadswompeTopic starter

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Re: 50$robot resistor value... wich one is it ?????
« Reply #1 on: September 17, 2010, 07:05:02 AM »
ok... i found my info on this thread :

http://www.societyofrobots.com/robotforum/index.php?topic=4737.0

the 340 ohm goes next to the LED and the 1.62 k ohm go to the photoresistors.   right?????

are resistors polarized ? It think they're not but still, more prudent to ask.

only one worry... the colour coding. CAN resistors from diff makers/sellers have same value but diff colour ?

Learning as I go

Yann
« Last Edit: September 17, 2010, 07:15:33 AM by rabadswompe »

Offline GearMotion

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Re: 50$robot resistor value... wich one is it ?????
« Reply #2 on: September 17, 2010, 07:31:04 AM »
Resistors are not polarized.

Differences in the color code may be because your resistor has fewer or more stripes. For now just write down the colors of a resistor and the value (taken from a package) in your notes just to keep from being confused. It might be simple enough to note that of the two resistors only the 340 has a yellow stripe, for instance. Later, though, you should learn the resistor color code. There are hundreds of web sites that will help if you google for "resistor color code".

« Last Edit: September 17, 2010, 07:33:30 AM by GearMotion »

Offline rabadswompeTopic starter

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Re: 50$robot resistor value... wich one is it ?????
« Reply #3 on: September 17, 2010, 07:49:10 AM »
super! Thanks GearMotion!

i must say tha the patience and helpfulness of the members of this forum is examplery and really keep newbees like myself at work and learning.

Offline GearMotion

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Re: 50$robot resistor value... wich one is it ?????
« Reply #4 on: September 17, 2010, 10:01:46 AM »
super! Thanks GearMotion!

i must say tha the patience and helpfulness of the members of this forum is examplery and really keep newbees like myself at work and learning.

Always glad to help!

 


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