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Topic: Arduino Mini Pro pin D8 is always HIGH (Read 799 times) previous topic - next topic

miclmr

I am using Arduino Compatible Pro Mini w/ ATMEGA328P Electronic Building
http://www.dealextreme.com/p/arduino-pro-mini-w-atmega328p-electronic-building-blocks-interactive-media-improved-version-104332

When I've connected 8 LEDs to it, the LED that was connected to pin D8 was always ON.

Despite the configuration the problem is still exist:
pinMode(8, OUTPUT);
digitalWrite(8, LOW);

Please help.
Thank you.

cyclegadget


Disconnect all of the leds, write a sketch that blinks D8 and report the results.

The other option is show your code for review.
Good links: Eagle tutorial= http://www.youtube.com/playlist?list=PLDE1858BD83D19C70
General Arduion tutorials = http://tronixstuff.wordpress.com
http://www.gammon.com.au/forum/bbshowpost.php?bbtopic_id=123

tim7

Does it make any difference if you set it as an input?

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