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31  Using Arduino / General Electronics / Re: 1.8v to 5v logic level converter on: April 15, 2013, 07:54:27 pm
Try one of these http://www.ftdichip.com/Products/Cables/USBTTLSerial.htm
This one TTL-232RG-VREG1V8-WE
32  Using Arduino / Project Guidance / Re: two pwm channels, for 5-12v and 0-100mA output on: April 13, 2013, 05:08:50 pm
Quote
Am I on the right track with the lm334z/nopb?
Nope that's  Voltage Reference
33  Using Arduino / General Electronics / Re: DIY recharging a battery on: March 29, 2013, 11:34:49 pm
I don't think that's for charging batteries.
Quote
At any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node, or:
 

That word sum means you added some thing to get a total in this case we are charging 4 cels we only have a set current of 360 and each will charge to that just like a cap 
34  Using Arduino / General Electronics / Re: DIY recharging a battery on: March 29, 2013, 09:32:46 pm
The op has his charger set to output 360 ma 18/50 = .360 amps divided by  cels 4 is 90ma a cel.
It will take 3.3 hours to charge and he better keep a eye on it there not anything to stop it from over charging.

Once the pack hits 5.6 volts you'll need to stop changing the pack. Thats if it is Ni-MH

 
35  Using Arduino / General Electronics / Re: P=V*I applied on DC resistor circuits. on: March 06, 2013, 09:42:26 am
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Yeah but 12 Ohms is little more than a dead short....

Yep and could look like a glowing heater if you used the right wire, or put it in a bulb and make some light.

36  Using Arduino / Project Guidance / Re: need help understanding code on: March 04, 2013, 01:00:52 am
You don't have to down load it to look at it But the OP is really lazy not to post it.
And what help does he need with the code looks fine and it worked in his video.

So the problem is how you make this work on his uno where to hook what and the like.


https://code.google.com/p/aguaviva-libs/source/browse/arduino/sketches/laserpojector/laserpojector.pde

37  Using Arduino / General Electronics / Re: 109.3035 ohm resistor on: March 03, 2013, 10:47:42 pm
Yep it looks like a match i just don't see a $100 for a resistor to set that.But who no's Thanks for the math PapaG
I would use hot and cold. And thanks for posting this It sure been fun racking my brain. But maybe we should ask the suppler. LOL just to see whats what.
38  Using Arduino / General Electronics / Re: 109.3035 ohm resistor on: March 03, 2013, 09:40:22 pm
I been racking my brain about this and I no I seen these things used in some thing just don't no what it was
But I don't think it's to set for 75 F cause it didn't add up on any chart I seen.

39  Using Arduino / General Electronics / Re: 109.3035 ohm resistor on: March 03, 2013, 08:05:21 pm
Where did you find that a PT100 is 109.3035   It's 109.73 at 25C could you show how you did the math for Fahrenheit
40  Using Arduino / General Electronics / Re: Why LED works but BC547 is not Working ? on: February 25, 2013, 02:20:31 pm
Its not going to work the OP doesn't have the gnd tied on the arduino
41  Using Arduino / General Electronics / Re: 23K256 SRAM Issues on: February 22, 2013, 08:34:11 pm
You did
Quote
At this point I'm contemplating sacrificing
you more then likely supplied them with sacrificing 5 volts

Code:
Part Number VCC Range Page Size Temp. Ranges Packages
23K256 2.7-3.6V 32 Byte I, E P, SN, ST
23A256 1.5-1.95V 32 Byte I P, SN, ST
42  Using Arduino / Project Guidance / Re: Video capture ! Possible? on: February 22, 2013, 03:04:14 pm
When you have computers that cant stream video whats 8 mhz micro controller going to do? 
43  Using Arduino / Project Guidance / Re: /Project/PIR+Sensor+Arduino+Alarm/72/1 on: February 14, 2013, 11:15:55 pm
There to things that cause that error one the reset didn't happen and two you didn't set the com port.

If it's a uno I would make sure I had the com port set right.
44  Using Arduino / General Electronics / Re: The ants come marching in (and release magic smoke) on: February 12, 2013, 03:36:04 am
Well what i see is poorly made boards plus a bug or two and things start to fell. The bad soldering show up I've pulled power transistor off a board the solder not even holding them. buttons the same thing. Reflow the board and it works like new. It't just poorly made stuff now days.
45  Using Arduino / General Electronics / Re: The ants come marching in (and release magic smoke) on: February 12, 2013, 03:10:08 am
Bugs do all kinds of things to boards I fix about 50 boards a year in stoves, dish washer and microwaves. And bugs are the number one killer. That and the fact that most newer stuff is made poorly.
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