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「Leonardo」+「Adafruit Data Logger Shield」Please check the ske
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Please be positive and constructive with your questions and comments.
- FROMJAPAN
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- Joined: Thu Sep 11, 2014 4:15 am
Re: 「Leonardo」+「Adafruit Data Logger Shield」Please check the
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- adafruit_support_bill
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- Joined: Sat Feb 07, 2009 10:11 am
Re: 「Leonardo」+「Adafruit Data Logger Shield」Please check the
Your wiring looks OK. It is possible that pins D2 and D3 are damaged on the Arduino. This can happen if they are overloaded.
- FROMJAPAN
- Posts: 35
- Joined: Thu Sep 11, 2014 4:15 am
Re: 「Leonardo」+「Adafruit Data Logger Shield」Please check the
After verifying the D2 · D3 in the sketch that lights the LED, it did not move .
D2 · D3PIN seems to have failed .
If you do not use the serial monitor , it is safe to remove this?
Serial.begin (9600);
Serial.println ("Card failed, or not present");
Serial.println ("card initialized.");
Do you who the removed becomes faster processing speed ?
Thank you very much
D2 · D3PIN seems to have failed .
If you do not use the serial monitor , it is safe to remove this?
Serial.begin (9600);
Serial.println ("Card failed, or not present");
Serial.println ("card initialized.");
Do you who the removed becomes faster processing speed ?
Thank you very much
- adafruit_support_bill
- Posts: 88136
- Joined: Sat Feb 07, 2009 10:11 am
Re: 「Leonardo」+「Adafruit Data Logger Shield」Please check the
It is safe to remove. But you will not have any error output if the SD card fails.If you do not use the serial monitor , it is safe to remove this?
Serial.begin (9600);
Serial.println ("Card failed, or not present");
Serial.println ("card initialized.");
No. Since there is no serial output in the loop. There will be no change in the loop speed.Do you who the removed becomes faster processing speed ?
If you want to increase speed, you can try using direct port i/o:
http://www.arduino.cc/en/Reference/PortManipulation
http://tronixstuff.com/2011/10/22/tutor ... ipulation/
Please be positive and constructive with your questions and comments.