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1  Using Arduino / Storage / Re: Sparkfun microSD OK on my Uno, why not on my MEGA 2560? on: March 15, 2014, 04:49:15 pm
that fixed it - thanks
2  Using Arduino / Storage / Re: Sparkfun microSD OK on my Uno, why not on my MEGA 2560? on: March 15, 2014, 08:05:07 am
correction, make that:

pin     - Uno to MEGA
================
SS       - 10 to 53
MOSI - 11 to 51
MISO - 12 to 50
SCK    - 13 to 52

right ?
3  Using Arduino / Storage / Re: Sparkfun microSD OK on my Uno, why not on my MEGA 2560? on: March 15, 2014, 07:59:31 am
aha ... so 50,51,52 instead of 11,12,13 ?
4  Using Arduino / Storage / Sparkfun microSD OK on my Uno, why not on my MEGA 2560? on: March 15, 2014, 04:32:41 am
I've been using microSD card successfully for many months but I'm stuggling to get my Sparkfun microSD to work on m MEGA 2560. I tested the card on a Uno using the Cardinfo example sketch, but with chipselect to pin 8 per Sparkfun directions, and it works just fine.
But when I try same on my MEGA, except with pin 53 set as the output for hardware SS, it never sees the card!
Any clues appreciated
TIA
5  Using Arduino / Programming Questions / Re: unusual syntax - what does it mean? on: July 21, 2012, 07:32:16 am
excellent, thanks all
6  Using Arduino / Programming Questions / unusual syntax - what does it mean? on: July 21, 2012, 05:56:32 am
well it's unusual to me anyway... from the Starlino IMU 6DOF code, here: http://www.starlino.com/imu_guide.html
 
              signRzGyro = (cos(Awz[0]*PI/180) >= 0 ) ? 1 : -1;

hoping someone can explain what this code does?

tks
7  Development / Other Software Development / Re: DCF77 library for Arduino - synchronize with atomic clock on: April 20, 2012, 04:51:13 pm
that's a very neat and clever testing technique!
I will steal your idea and give it a try on my GPS, but it will be a while before I get to it because I'm focused on getting code working for my new accelerometer code at present - too many toys to choose from  smiley but I'll let you know what I find
8  Using Arduino / Programming Questions / Re: Time and TimeAlarms Libraries – Ask here for help or suggestions on: April 19, 2012, 03:19:02 pm
Would you mind pointing out the corrections that need to be made to help it run faster and cleaner ...

have a read through this thread where problems with String are discussed, and PaulS even provided an example of how to use sprintf() that may help you. it worked for me!

and here's a full explanation of sprintf() works:
http://www.cplusplus.com/reference/clibrary/cstdio/sprintf/
9  Development / Other Software Development / Re: DCF77 library for Arduino - synchronize with atomic clock on: April 19, 2012, 03:12:37 pm
thanks for explanation. I'm already up to speed on GPS, I use a LS20031 that gives me time just fine (using time library). However although I have been able to get setsyncprovider to work with a DS1307 RTC I can't get GPS to respond... hence my interest in your thread.
I ran a thread on it here: http://arduino.cc/forum/index.php/topic,81175.msg612786.html#msg612786
10  Development / Other Software Development / Re: DCF77 library for Arduino on: April 19, 2012, 05:32:20 am
excuse my cruiosity, but what does a dcf77 do and where do you buy them?
11  Using Arduino / Programming Questions / Re: Printing special characters on: April 06, 2012, 03:27:55 pm
Next day Google will push books ad to you that features a whole chapter on "How to type degree symbol on PC"  smiley-wink

LOL , and I'm a the perfect target for such smiley
12  Using Arduino / Programming Questions / Re: Printing special characters on: April 04, 2012, 06:54:32 am
º how about alt+0186 º  smiley
ºXºXºXº
google is so amazing these days, I just googled "How to type degree symbol on PC" and bingo
13  Using Arduino / Programming Questions / Re: Printing special characters on: April 03, 2012, 02:02:07 pm
The degree symbol (as in 27°C) ...

Morris - how did you insert / type the degree symbol into your text above ?
14  Using Arduino / Programming Questions / Re: Printing special characters on: April 03, 2012, 05:35:37 am
excellent help, thanks all

I must use/learn that list of backslash codes ...

found the magic syntax too ...

Code:
lcd.print((char)223);    // degree

yeeha  smiley  smiley    


... great forum, friendly players, top advice, fascinating topic(s) smiley
15  Using Arduino / Programming Questions / Printing special characters on: April 02, 2012, 04:36:47 pm
Where can I find a list of all the special characters for char arrays and printing, like \n, \o and similar

Also how would I print the little superscripted 'o' symbol for degrees C or F, e.g. in 27<degrees symbol>C

TIA
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