Guide.Troubleshooting2 History

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July 18, 2007, at 04:05 PM by David A. Mellis -
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July 18, 2007, at 04:05 PM by David A. Mellis -
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Why won't Arduino run on old versions of Mac OS X?

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Why won't Arduino run on old versions of Mac OS X?

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What do I do if I get the following error when launching Arduino?

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What do I do if I get the following error when launching Arduino?

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What about this error?

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What about this error?

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What can I do about cygwin conflicts on Windows?

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What can I do about cygwin conflicts on Windows?

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Why doesn't my board show in the Tools | Serial Port menu ?

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Why doesn't my board show in the Tools | Serial Port menu ?

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Why I can't upload my programs to the Arduino board?

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Why I can't upload my programs to the Arduino board?

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What if I get this error when uploading code or using the serial monitor (on the Mac)?

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What if I get this error when uploading code or using the serial monitor (on the Mac)?

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I'm having trouble with the FTDI USB drivers.

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I'm having trouble with the FTDI USB drivers.

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Why doesn't my sketch start when I'm powering the board with an external power supply?

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Why doesn't my sketch start when I'm powering the board with an external power supply?

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Why doesn't my sketch start when I power up or reset the Arduino board?

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Why doesn't my sketch start when I power up or reset the Arduino board?

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Why does my sketch appear to upload successfully but not do anything?

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Why does my sketch appear to upload successfully but not do anything?

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How can I reduce the size of my sketch?

The ATmega8 chip on the Arduino board is cheap, but it has only 8 Kb of program code, which isn't very much (and 1 Kb is used by the bootloader).

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How can I reduce the size of my sketch?

The ATmega168 chip on the Arduino board is cheap, but it has only 16 Kb of program code, which isn't very much (and 2 Kb is used by the bootloader).

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Why don't I get a PWM (an analog output) when I call analogWrite() on pins other than 9, 10, or 11?

The microcontroller on the Arduino board (the atmega8) only supports PWM/analogWrite() on certain pins. Calling analogWrite() on any other pins will give high (5 volts) for values greater than 128 and low (0 volts) for values less than 128.

Troubleshooting Old Versions of the Arduino Software

These questions are for reference only, as older versions of the Arduino software are no longer supported. Please download the latest version from the software page?.

Arduino 0005 won't start on Mac OS X.

Check your console log (Applications > Utilities > Console). If you see a message like "unsupported major.minor version 49.0", your Java is too old. Run Software Update to upgrade to the latest version.

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Why don't I get a PWM (an analog output) when I call analogWrite() on pins other than 3, 5, 6, 9, 10, or 11?

The microcontroller on the Arduino board (the ATmega168) only supports PWM/analogWrite() on certain pins. Calling analogWrite() on any other pins will give high (5 volts) for values greater than 128 and low (0 volts) for values less than 128. (Older Arduino boards with an ATmega8 only support PWM output on pins 9, 10, and 11.)

July 18, 2007, at 04:00 PM by David A. Mellis -
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