Log in

No account? Create an account

Previous Entry | Next Entry

Why It Pays To Read Directions

I'm sitting at my workbench, playing with different combinations when I hear the knock on my door.

Who is it?

"'Who is it?'  Who do you think it is?"

Ah, yes, my head of research and development!  Come in!

"So what is it?"

I'm trying to build the component circuit, and I'm having problems getting it to work.

"What exactly is the problem?"

The purple LED lights.  They turn yellow after a split second, and then you smell the blue smoke that tells you electronics don't work anymore.

"Did you read the package of LED lights?"


"It says, 3 to 3.4 volts.  You are plugging them directly into a 9 volt battery.  Fuckin' derp, dude."


"How many of those things have you fried?"


"How many do you have left?"

Based on math of how many I ordered?  95.

"Oh.  I thought you were out."

Nope.  Bought them in bulk.  Real bargain for only five bucks.

"So.  What has your play told you?"

Well, I was hoping to power the entire circuit with only one AAA battery.

"Not working?"

Nope.  The light alone needs two AAA's to run.  And when I put the buzzer in series, it doesn't work at all.

"Tried different buzzers?"

Yup.  No dice.

"So you can have one or the other, but not both?"

Well, no.  If I put three AAA's in there, it works in series.

"Will it fit in the housing you are considering?"

Don't know yet.  I will need to see if I can find a three battery harness that will still fit.  If not, I need to come up with something else.

"You can do without the noise.  It doesn't even sound like what you are aping."

I want a light and I want a noise.  That's all there is to it.

"Okay.  Let me know what you figure out."



Aren't YOU supposed to be doing the research around here?


( 2 comments — Leave a comment )
May. 7th, 2012 05:15 am (UTC)
Have you considered adding a resistor before each LED to choke the voltage?
May. 7th, 2012 09:48 pm (UTC)
Shouldn't be necessary, the buzzer pulls enough juice to keep things okay. 4.5 volts is enough to get the sound and light up. My only concern is my best option might be to just tape three AAA's in series and attach wires to it when I put it in the housing. I'm not sure others will want to dick with that set-up, but all the battery holders I'm finding are side by side, not in line. Need to do more research.
( 2 comments — Leave a comment )

Latest Month

June 2019


Page Summary

Powered by LiveJournal.com