How String Hex to dec

Projects Programming
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What do I have to do want 759

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What is in buf? What is the source of what goes into buf? Post a complete sketch (and not as a screenshot).

Probably stop thinking in text.

Your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with (nor for advise on) your project :wink: See About the IDE 1.x category.

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You have to explain your problem better.

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Please read How to get the best out of this forum and pay special attention to the section about posting code.

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Serial.print(canId);

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