What is the pi's voltage and current rating - Raspberry Pi Forums

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when design circuits want know how voltage , current returns gnd pin on board. since voltage little more complicated (from prospective), , decreasing current simpler, want know should out for. voltage destroys circuits, or current. know can combination of both want know if need watch out for. prevent electrical currents destroying pi while having handle large currents smaller current delivers gpio pins.

the gpio pins not receive higher 3.3v or less 0v when in input mode.

should not source or sink more 16ma @ 3.3v pin when set output, can't remember total current limit is, best keep low possible.

pi should powered 5v (+/-0.25v max), preferably supply capable of providing 2a (although may away less).

i'm not sure mean ground pins. ground. don't have worry current much. fuse blow (2a) before pins overloaded.


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