2015-03-25 08:29:41 +08:00
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SDA is one of the i2c pins on the Pi, [learn more about i2c](/pinout/i2c).
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2015-02-25 06:07:11 +08:00
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It's easy to get started writing a digital HIGH or LOW to a GPIO pin, but you've got to remember a few things:
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* Run your script as root
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* Set your pin's mode to OUTPUT (1)
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