Posted 17 October 2011 - 02:41 AM
Posted 17 October 2011 - 05:41 AM
Posted 17 October 2011 - 06:00 AM
I would also like to log a voltage in using the analog inputs, but I can't seem to make this work either.
I connected a 1.5v AA battery positive to GPIO_PIN_A0 and negative to ground and get random numbers. I also connected the 3.3v supply pin to GPIO_PIN_A0 and get the number 1023 and I'm not sure what this is.
So I just read that 1023 is because the analog inputs are 10bit adc, 10^2 = 1024 - 1. So do I just interpolate? 0v = 0, 3.3v = 1023. If this is true, I just multiple the input value by 0.003.
Posted 17 October 2011 - 01:15 PM
Posted 18 October 2011 - 02:13 AM
Just about nothing you do on the GPS till have any effect on how it locks. You just need to make sure it's in an area with a clear view to the sky and it should pick up fix.
A solder jumper is a pair or 2 pads that can be shorted together with a small drop of solder. These can sometimes be used for configuration settings and such.
Thank you for your feedback, I went ahead and tried to go out to an open area with and waited 45 minutes and still no lock.
Is it posible that the GPS is broken?
Posted 28 December 2013 - 02:22 PM
Did you ever resolve the above? I am currently experiencing the same problem...
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