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Testing the GPIO pins
MarkHaysHarris777
Professor of The Pine
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#2
08-09-2016, 01:01 PM
I suspect that these pins have built-in current limiting resistors. I know this is true for at least the PL7 GP(359) !

PL7 is the system LED (on the board between the IR module female plug and the power button. (LED on the left)

This is designed for a 3mm low-power 2-4 ma LED. There is a 1000 ohm resistor in-line with this LED built-in. Hence, it is dimly lit (even with a low-power LED).
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Messages In This Thread
Testing the GPIO pins - by shockr - 08-09-2016, 07:54 AM
RE: Testing the GPIO pins - by MarkHaysHarris777 - 08-09-2016, 01:01 PM
RE: Testing the GPIO pins - by martinayotte - 08-10-2016, 09:44 AM
RE: Testing the GPIO pins - by MarkHaysHarris777 - 08-10-2016, 10:53 AM
RE: Testing the GPIO pins - by martinayotte - 08-10-2016, 01:02 PM
RE: Testing the GPIO pins - by MarkHaysHarris777 - 08-10-2016, 01:38 PM
RE: Testing the GPIO pins - by martinayotte - 08-10-2016, 05:24 PM
RE: Testing the GPIO pins - by MarkHaysHarris777 - 08-10-2016, 05:30 PM

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