Yes. Through power micro USB connector.frak wrote:This is output through a USB socket and I guess I can just connect that to the Pi.
Shortcut.... which is not recommended, because you bypass internal overvoltage & overcurrent protections.frak wrote:However, in the project the power is given to the Pi through the GPIO header and I was wondering why this was?
Not at all. The risk is increased if you'd supply the RasPi through GPIO.frak wrote:It would obviously be much simpler for me to provide the power through the mini USB socket, but I wonder if I am risking damage to my Pi if I do this?
Overcurrent protection is activated when the overall current is exceeded significantly. The protection is RasPi-wide and not per-output-pin.frak wrote:This all makes sense, but the over current protection you mention - won't that stop the current getting through to the GPIO header that will power the LEDs?
I am not sure I fully understand this. From what I have read about the LED strip https://learn.adafruit.com/light-painti ... i/hardware, it requires about 2A of power per metre, and I have two metres, thus needing about 4A for the LEDs. Are you saying that this will pass the 4A through to the GPIO?FLYFISH TECHNOLOGIES wrote:In case of nothing but LEDs attached, the GPIO outputs' limit are met before the overcurrent protection is activated.
You haven't mentioned LED strips... just LEDs.frak wrote:I am not sure I fully understand this. From what I have read about the LED stripFLYFISH TECHNOLOGIES wrote:In case of nothing but LEDs attached, the GPIO outputs' limit are met before the overcurrent protection is activated.
No, it will not "pass".frak wrote:Are you saying that this will pass the 4A through to the GPIO?
After some time spent here, you'll find out that people are jumping to all kind of subjects within a single thread.frak wrote:If you had looked at either of the links in my question you would have seen what is involved in the project
It's up to you to make a decision which information to follow...frak wrote:However, the schematic here seems to suggest that powering the Pi from the GPIO is ok with a 2A supply
My statement about protections is (still) applicable.frak wrote:wouldn't the current go mostly to the LEDs and the Pi would only draw what it needed?
Basic misunderstanding...frak wrote:how do I protect the LED strip from too much current?