Hi i am Working on a project to control multiple door locks using arduino Due ... and i am stuck in between circuit ... with the help of code i can control my LEDS ( one pin to ground other to digital output ) but when i use NPN transistor to control it i am not able to do it so. Following describe …

HELP: Use Arduino Due To Control Lock Circuit

RayLivingston November 27, 2015, 5:30am 4

What tutorial? Give a link.

A transistor with the collector and emitter connected together is not a transistor, it is a diode...

Regards,
Ray L.

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