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+=====XTension GPIO Kit API: Controlling GPIO outputs=====
+GPIO Endpoints setup as outputs can be controlled with a simple GET request to the /api/gpio url:  http://xtgpio.local/api/gpio
+To turn on gpio 3:
+http://xtgpio.local/api/gpio?index=3&command=on
+To turn off gpio 1:
+http://xtgpio.local/api/gpio?index=1&command=off
+Both index and command are required elements. Leaving any of them off will return an error instead. If you attempt to control a GPIO Endpoint that is lower than 0 or above the number of available GPIO endpoints an error is returned. If you try to control a GPIO channel that is not configured as an output an error will be returned.
+Upon success the same json data as returned from the /api/data request is returned showing the new values if any that were changed by your command.
+(BETA: Eventually the setvalue command will also be supported for endpoints like the servo and DAC outputs. This is not implemented yet in the current beta)

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