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Sometimes signals are handled with positive voltages being pulled low (grounded). However, most MCUs (Arduino) can only sink 20mA continuous current … A simple NPN Transistor circuit can be used to interface between the MCU and these types of signals … 😁
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Preston joined the group
Electronics
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Description
A group for discussion of all things electronics: microcontrollers, Arduino, Raspberry Pi, addressable LED pixels, soldering, IC’s and more!
