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Re: Classic MPC C-3PO and R2-D2 uber detail build

Well for the last couple of days I've been messing around trying to get my circuit to work... I stripped it down to its bare components and am just trying to get 3 LEDs to flash/pulse properly. I almost got them working. I can get the first blue and the white to pulse but the last blue remains on constant. Still can't get it quite right, but I feel as if I'm almost onto something here. Here's a vid of what it looks like right now.

R2-D2 LED Circuit Test #3

Not sure what I'm doing wrong but I feel as if I'm on the right path... I know it has something to do with the resister values... but since these LEDs are scrap leds that i scrounged, I have no idea what their values are to come up with an accurate value for putting the resisters on them. Is there any way to test the resistance value of an LED to find out what the voltage drop of it is easily?

<blockquote data-quote="LrdSatyr8" data-source="post: 129476" data-attributes="member: 12737">Re: Classic MPC C-3PO and R2-D2 uber detail buildWell for the last couple of days I&#039;ve been messing around trying to get my circuit to work... I stripped it down to its bare components and am just trying to get 3 LEDs to flash/pulse properly.&nbsp; I almost got them working.&nbsp; I can get the first blue and the white to pulse but the last blue remains on constant.&nbsp; Still can&#039;t get it quite right, but I feel as if I&#039;m almost onto something here.&nbsp; Here&#039;s a vid of what it looks like right now.<a href="http://www.youtube.com/watch?v=yGKKzvcHVpU#ws" target="_blank">R2-D2 LED Circuit Test #3</a>Not sure what I&#039;m doing wrong but I feel as if I&#039;m on the right path... I know it has something to do with the resister values... but since these LEDs are scrap leds that i scrounged, I have no idea what their values are to come up with an accurate value for putting the resisters on them.&nbsp; Is there any way to test the resistance value of an LED to find out what the voltage drop of it is easily?</blockquote>

[QUOTE="LrdSatyr8, post: 129476, member: 12737"] [b]Re: Classic MPC C-3PO and R2-D2 uber detail build[/b] Well for the last couple of days I've been messing around trying to get my circuit to work... I stripped it down to its bare components and am just trying to get 3 LEDs to flash/pulse properly. I almost got them working. I can get the first blue and the white to pulse but the last blue remains on constant. Still can't get it quite right, but I feel as if I'm almost onto something here. Here's a vid of what it looks like right now. [url=http://www.youtube.com/watch?v=yGKKzvcHVpU#ws]R2-D2 LED Circuit Test #3[/url] Not sure what I'm doing wrong but I feel as if I'm on the right path... I know it has something to do with the resister values... but since these LEDs are scrap leds that i scrounged, I have no idea what their values are to come up with an accurate value for putting the resisters on them. Is there any way to test the resistance value of an LED to find out what the voltage drop of it is easily? [/QUOTE]

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