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1  Forum 2005-2010 (read only) / Troubleshooting / Re: Low Voltage problem on Pin4 on: February 04, 2009, 09:46:35 am
When we setup Idovers board all we did was load the sketch and read pin 4. he was never attached to my project board.

I jumpered pin4 to pin6 and used pin6 in the sketch and all is well.

I have since put my shield back on and everything is now good to go. I just cant use pin 4.

btw i am on Vista as well.
2  Forum 2005-2010 (read only) / Troubleshooting / Re: Low Voltage problem on Pin4 on: January 31, 2009, 10:58:07 pm
there really isnt. I was using a shield. and part of it wasnt working.

After tracing everything out i detected that pin4 was going high but just barely. So i simplified the code down to the bare minimum and posted it here.

I then uploaded it to someone elses board and found the same thing.

They then expanded the program to try out 3-4 interfaces and saw the same thing.

We checked it with a meter, any pin but 4 would go high for a second and read 5v.

pin 4 would go high and read about 1.5. ALso wanted to note that all testing was done on a bare arduino no shield attached.
3  Forum 2005-2010 (read only) / Troubleshooting / Re: Low Voltage problem on Pin4 on: January 31, 2009, 08:28:57 pm
decimilia...

i tried it on mind and another guys at the user group i was at today...

we also added pins 3 6 7 all of them produced 5v as expected.
4  Forum 2005-2010 (read only) / Troubleshooting / Low Voltage problem on Pin4 on: January 31, 2009, 03:30:15 pm
So i have created a shield that uses pin 4 and discovered a problem.

Code:
int outRam = 4;

void setup() {
  
   pinMode(outRam, OUTPUT); // Fire Ram output
  }

void loop (){

          digitalWrite(outRam, HIGH);
            delay(1000);
         digitalWrite(outRam, LOW);
         delay(1000);
 }


What i see when pin 4 goes high there is minimal voltage on it only like 1-2 volts. if i change the pin to 12 or any other pin there is no issue. I duplicated this on 2 seperate arduinos. and this is with no shield just measuring the the voltage on the pin.

On pin 12 i obviously see it go to 5v.

Thanks for the help.
5  Forum 2005-2010 (read only) / Exhibition / Re: Arduino 3DOF Head Tracker on: March 12, 2009, 11:39:29 am
How about if i build it. ill send you one and you can code it?

6  Forum 2005-2010 (read only) / Exhibition / Re: Arduino 3DOF Head Tracker on: February 25, 2009, 10:53:45 am
Zitron, If you want to help me put together a board ill Order 2 and send you one for free...

I thought about making an arduino shield, but the i would prefer to have it as small as possible and just run a wire since its going to be on top of your head or glasses.

We can use the LIS302DL - $12.95 sparkfun
and the LISY300AL Single axis Gyro - $11.95 sparkfun

that lisy300al should give you about 100x better capabilities of controlling drift.
7  Forum 2005-2010 (read only) / Exhibition / Re: Arduino 3DOF Head Tracker on: February 02, 2009, 03:00:01 pm
COuldnt you use a dual axis Gyro only and skip the accelerometer?

just wondering about wayts to simplify.
8  Forum 2005-2010 (read only) / Frequently-Asked Questions / Do you guys know anyone selling on: June 01, 2010, 10:49:37 am
the Atmega 328 TQFP package with preburned bootloader?

im trying to make a really small board and would not like to build something else to burn 5-6 boards.
9  Forum 2005-2010 (read only) / Bar Sport / Re: Resistor Group Buy on: September 13, 2008, 09:43:00 am
Thanks for the link. I think i can survive with those kit smiley-wink

Sorry for the typo on the 86000 as well smiley-wink

CANCELED!
10  Forum 2005-2010 (read only) / Bar Sport / Resistor Group Buy on: September 12, 2008, 08:31:41 pm
seeing as how nobody sells a large pack of resistors cheap with the variety i want. i am going to do my own.

I have a supplier that can do 100 each of 86 different types of resistors 1/4 watt carbon film  for $28.

That is 86,000 resistors for $28.

I need 10 total people to join, i have 3 so far, I have offered this to the atlanta arduino group

Once i have 7 People Commit to buying, They can send me $28 via paypal. and should recieve their resistors in about 2 weeks.

Sorry US shipping only.

You can email me at socoj2@gmail.com
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