Max current 5V pins
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I am looking to run a smartphone on the front of my printer as an interface/camera. Ideally I'd like to power this from the 5v supply on the duet wifi. The current draw is 2.4 A for the phone, can the duet 5v pins provide this?
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The maximum recommended current from +5V is 2A total. Your phone will probably draw no more than 500mA except when it is connected to a high current charger that it recognises.
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Ok great, so should all be fine to do that. Cheers!
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while running with screen on and camera recording most phone will use more than the 2.5W you get with 500mA.
if you are running 12v from your power supply have a look at Autoleader 12V to 5V Dual USB Power Adapter
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@veti said in Max current 5V pins:
while running with screen on and camera recording most phone will use more than the 2.5W you get with 500mA.
I would expect the phone to draw most of the current from its battery in that case. USB devices should draw no more than 500mA until they negotiate a higher current with the USB host. But of course 500mA isn't going to keep the battery charged if the phone actually needs 2.4A in that configuration.
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Rather than connecting directly to the Duet, consider getting something like this: https://www.amazon.ca/BlueFire-Waterproof-Voltmeter-Motorcycle-Black-Blue/dp/B07MKFYQHQ/
They can be wired directly to your PSU and should provide exactly what the phone needs to charge. Then you can use a plain USB cable. Plus it also has a handy voltage display.
