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1  Using Arduino / General Electronics / Trouble with transistor's on: May 05, 2013, 07:43:51 pm
I've used the following 2 products numerous times
https://www.sparkfun.com/products/10213
https://www.sparkfun.com/products/10256

I always have trouble with product 10256.

But product 10213 always works perfect. I wire product 10213 on a bread board with this wire guide.
http://bildr.org/2012/03/rfp30n06le-arduino/

I used a comment on product 10256 to wire it. Comment is below.

Looking at this picture going clockwise starting at the very top left:
* The headlight’s negative lead
* The headlight’s positive lead
* Your supply voltage (The voltage/current your headlight needs)
* Gnd
* And Arduino IO pin
1 and 4 are connected through the mosfet. Connectivity between those two pins is controlled by 5.
2 and 3 are connected together directly, so they could be omitted.

Is there a reason for this? Am I wiring it wrong?

This is for PWM on 12V LEDs and fans.
2  Using Arduino / Project Guidance / Re: running out of pins on: January 01, 2013, 04:29:32 pm
A link to a page with actual content would help.
You can use alternat pins for you key pad and that will free up the five out of six PWM pins you need for your LED dimming.
Alternately use a shiftbregistervto give you more pins and use shiftPwm libary to control them.
For some reason the last ) is left out of the link.

I'll read more on this method since I'm stuck using an UNO and no expansion boards.
3  Using Arduino / Project Guidance / running out of pins on: January 01, 2013, 04:21:05 am
I have an uno and this shield
http://www.dfrobot.com/wiki/index.php/Arduino_LCD_KeyPad_Shield_(SKU:_DFR0009)

And I need to dim 5 LEDs with MOSFETs via PWM. Am I stuck with using 2 arduinos or is there another way around this?
4  Community / Gigs and Collaborations / Re: Need simple LCD/keypad menu built $$$ on: January 01, 2013, 02:23:34 am
First and only person to reply is working on it.
5  Community / Gigs and Collaborations / Re: Need simple LCD/keypad menu built $$$ on: December 31, 2012, 10:16:27 pm
If this is not a "simple" menu I still need it done. please pm me a price. Also after this is done I will need the menu and functions expanded later on.
6  Community / Gigs and Collaborations / Need simple LCD/keypad menu built $$$ on: December 31, 2012, 09:40:03 pm
Using this and an uno r3

http://www.dfrobot.com/wiki/index.php?title=Arduino_LCD_KeyPad_Shield_(SKU:_DFR0009)

I have 5 LEDs that use PWM. I need each color listed on the menu. After selecting the color I need the up and down keys to +/- the PWM value. After its at the value I like I want to press select and have the value stored to EEPROM. Then the sketch can run the PWM value for that color from the EEPROM values stored.

I've tried and tried to understand this shield but I can't get it. I can pay half upfront and half when done. Also this is not for a private deal. The code can be published where ever you would like to put it with full credit to you.
7  Using Arduino / Project Guidance / Re: 6 PWM channels, input device and display on: September 13, 2012, 12:50:36 pm
6 PWM - fine
4 push buttons -fine
One LCD - is 6 pins
So total of 16 pins. On most arduino's like the UNO you have 19 pins so what is the problem?
Which LCD do you know of that uses 6 pins? All I find is 10 pins.
8  Using Arduino / Project Guidance / Re: 6 PWM channels, input device and display on: September 12, 2012, 12:02:39 pm
I forgot to mentionthe RTC as well.
9  Using Arduino / Project Guidance / 6 PWM channels, input device and display on: September 11, 2012, 11:37:56 am
I need to find the parts to make this work off of one board. I need 6 PWM pins for lights. I need a keypad or atleast a 4 button layout and a display of some sorts. 2x16 lcd?

Any ideas on some hardware thats light on the pin use? What would you use or suggest?
10  Using Arduino / Project Guidance / Re: need to add odds of value getting picked inside random on: September 10, 2012, 02:48:31 pm
I have this, which I think should work. I have yet to test.
Code:
ran1 = random(1,21);
if(ran1 < 20)
{
  low = random(1,100);
}
else
{
  low = random(100,1000);
}
11  Using Arduino / Project Guidance / Re: need to add odds of value getting picked inside random on: September 10, 2012, 10:49:50 am
Its a 50/50 chance that it would pick ran2 for the value. I need it to be a 30/70 chance.
12  Using Arduino / Project Guidance / Re: need to add odds of value getting picked inside random on: September 10, 2012, 09:52:45 am
Yeah I noticed. But I don't think using an if else command is the right way to handle this and thats the only way I can think of to check it. I know it sounds right. I'll post my code later so you can see why I think it might be wrong. Is there another line to use other then if else?
13  Using Arduino / Project Guidance / Re: need to add odds of value getting picked inside random on: September 10, 2012, 08:34:58 am
I was thinking it would be something like that but I'm not sure what command line I would use.
14  Using Arduino / Project Guidance / need to add odds of value getting picked inside random on: September 09, 2012, 11:09:44 pm
I have a code much like this

ran1 = random(1,100);
ran2 = random(100,1000);

delay(random(ran1,ran2));

That means its a 1 out of 2 odd for either ran1 or ran2. Now I have a VERY ugly and wrong way of changing the odds. So ugly that I'm ashamed of posting it here. So how would I make it say... 1 in 20 chance of getting ran2?

Warning! I have not googled this yet so if you reply within the next 4 hours you are encouraging extreme laziness. smiley-twist
15  Using Arduino / Project Guidance / Re: Multiple Arduinos on One Receiver on: September 07, 2012, 02:18:04 pm
@CrossRoads

I was thinking more on the lines of taking ritalin. LOL.
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