Search found 2999 matches

by timmeh87
Sat Sep 11, 2010 6:42 pm
Forum: Technical Questions and Answers
Topic: Wii Laptop Battery Help!
Replies: 2
Views: 847

Re: Wii Laptop Battery Help!

some observations:

- A Ni-Mh battery of the same capacity of a lithium battery weighs about twice as much (check weight. consider.)
- If you want a 12v, 6600mAh pack, then you need 8 cells (2x4 cell array) ... What you described makes no sense (1x4 + 2 extra???)
by timmeh87
Fri Sep 10, 2010 10:53 am
Forum: Technical Questions and Answers
Topic: Micro ATX PSU Troubles
Replies: 1
Views: 709

Re: Micro ATX PSU Troubles

I dont know what to tell you, usually with normal ATX power supplies you just unplug them, wait a second, and it works again.

Unless the short still exists.
by timmeh87
Thu Sep 09, 2010 11:27 pm
Forum: 1990's Gaming
Topic: 100uF capacitor and 2k Ohm resistor
Replies: 9
Views: 1654

Re: 100uF capacitor and 2k Ohm resistor

the current does not go through that resistor, and its more than 1 amp IIRC
by timmeh87
Thu Sep 09, 2010 12:09 pm
Forum: 1990's Gaming
Topic: protection circuit for 7 1.2volt lithium ion batterys
Replies: 2
Views: 745

Re: protection circuit for 7 1.2volt lithium ion batterys

Umm... seven 1.2v batteries?

If they are 1.2v batteries, they aren't lithium and dont need protection
If its a 7.2v lithium battery pack then you would have two (or an /even/ number of) 3.6v cells and you get a 2-cell protection circuit.
by timmeh87
Thu Sep 09, 2010 11:37 am
Forum: 1990's Gaming
Topic: 100uF capacitor and 2k Ohm resistor
Replies: 9
Views: 1654

Re: 100uF capacitor and 2k Ohm resistor

Sure will work but you could go with smaller resistors. Those ones are pretty big.
by timmeh87
Tue Sep 07, 2010 1:18 pm
Forum: Technical Questions and Answers
Topic: Mosfet control issues
Replies: 12
Views: 2641

Re: Mosfet control issues

Are you sure it isnt your code? If it fails the LED test and you say its hooked up right, theres not much else it could be. Are you putting in delays? You cant drive these things past 400khz or 1mhz or something like that. (also some 595's cant (shouldn't) drive LEDS directly. depends on the drive c...
by timmeh87
Tue Sep 07, 2010 9:34 am
Forum: Forum 42
Topic: song chuan 894h-2ah1-f-c Please Help
Replies: 9
Views: 2143

Re: song chuan 894h-2ah1-f-c Please Help

Id say you were pretty lucky to find them at all. Digikey has a similar $25 rule. Thems the breaks.
by timmeh87
Mon Sep 06, 2010 11:34 pm
Forum: Technical Questions and Answers
Topic: HeartBeat recorder...
Replies: 3
Views: 1012

Re: HeartBeat recorder...

You could just download the sound of someone else's heart and say its yours.
by timmeh87
Sat Sep 04, 2010 1:24 pm
Forum: Technical Questions and Answers
Topic: Li po issues
Replies: 8
Views: 1811

Re: Li po issues

1) You are being difficult. You cant know anything about the voltage without actually measuring it. When trouble-shooting you cant make a good decision on a statement like I know they are either undervolting or not putting out a voltage at all. You cant really "know" anything specific if you later q...
by timmeh87
Fri Sep 03, 2010 4:19 pm
Forum: Technical Questions and Answers
Topic: Li po issues
Replies: 8
Views: 1811

Re: Li po issues

Then stare at the battery until you get one. I dunno. They are like 10 bucks.
by timmeh87
Fri Sep 03, 2010 10:37 am
Forum: Technical Questions and Answers
Topic: Li po issues
Replies: 8
Views: 1811

Re: Li po issues

Measure the voltage.
Look up the protection IC datasheet.
by timmeh87
Fri Sep 03, 2010 10:30 am
Forum: Technical Questions and Answers
Topic: Getting started with diy PCB's
Replies: 13
Views: 5405

Re: Getting started with diy PCB's

Inkjet will definitely not work. I dont know where you heard that... Its called the toner-transfer, laser toner is the only thing that works.

http://gilmore2.chem.northwestern.edu/p ... z2_prj.php" onclick="window.open(this.href);return false;
by timmeh87
Fri Sep 03, 2010 10:25 am
Forum: 1990's Gaming
Topic: n64 question
Replies: 2
Views: 967

Re: n64 question

Cart slot wiring. Especially if it looks like this (funny meme aside)

http://www.youtube.com/watch?v=SP5c_MEs9mo" onclick="window.open(this.href);return false;
by timmeh87
Wed Sep 01, 2010 10:50 am
Forum: Forum 42
Topic: Why is there no topic for Metroid?
Replies: 11
Views: 1598

Re: Why is there no topic for Metroid?

I thought this game came out a year ago.

I still havent finished echoes....

I do not like the idea of using wii controllers to play metroid.
by timmeh87
Tue Aug 31, 2010 10:37 am
Forum: Technical Questions and Answers
Topic: Getting started with diy PCB's
Replies: 13
Views: 5405

Re: Getting started with diy PCB's

The photosensitive boards have to be exposed with UV light using a image printed onto clear plastic. ("overhead transparencies"). Then you wash away the photoresist and continue etching as normal I did it once and then decided to never do it again because I did not get good results. The photoresist ...