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| What is the NXT-G Calibration block for? |
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The Calibration block (located in the 'Advanced' section in the 'complete palette' tab on the left side of the screen) is used to determine what real-life sound and light levels correspond to the 0% and 100% levels of the sound and light sensors. In order to fully calibrate a sensor, two calibration blocks are needed.
In the above program, the value in port 1 calibrates the minimum light sensor reading, then the NXT waits for the touch sensor to be pressed. Then the value in port 1 calibrates the maximum light sensor reading. This sets the scale of the sensor relative to these minimum and maximum levels.
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