Description: After the closure of the power, the power indicator light is bright, is this normal?Answer: This is normal, this indicator has 2 effects, action 1 is indicative of 5V total power, action 2 is directed parallel output,If completed learning board after the use of parallel lines are not disconnected, it will make the semi bright instructions, if a short period of time to often use the learning board, turn off the power switch.At this time, do not need to unplug the parallel and serial port, indicating lamp semi bright state does not affect learning board using the.
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002-如何点亮2个LED发光管\123
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002-如何点亮2个LED发光管
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