What is the maximum current that I get from 3.3V output of display connector? If I feed 3.3V trough GPIO can I get more more current from this connector?
Thank you very much for your reply. This changes everything now.mahjongg wrote: ↑Mon May 28, 2018 12:38 pmNO!
The 3V3 comes from exactly the same 5V to 3V3 converter source as the 3V3 going to GPIO's, the amount the converter can deliver depends on the model pf PI you are using, but even in the best case it will not be much more than a few hundred mA, probably much less.
Don't feed 3V3 to the GPIO from an external 3V3 source, or you will damage the PI (the converter).
the DSI ports power lines are dimensioned ONLY for the power requirement of the camera logic NOTHING ELSE!
especially it was never intended to power a LED Ring, as some Chinese re-sellers sell.
Using such a ring might damage your PI and camera!
If you are drawing only a few milliamps you would possibly be okay but you would never know for sure unless you can find a spec for the connector and cable, and after having tried it.