Comments (6)
Hello aussetg,
The total system power consumption depends on many factors including devices attached to the USB 3.0 Type-A ports.
If you are seeing a potential power issue, I think it is worth considering supplying power through the DC barrel jack (which is rated for 5V/4A, thus 20W).
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Hi,
I tried both nano and JetBot image with a 5V/2.1A power bank, but the power bank couldn't boot up the system. My power bank has a 2.1 A and 1A port, so can I use both ports at the same time to supply 3.1A power to the Nano? I tried to short J48 with both DC plug and uUSB came from power bank, but it did not work. Could you recommend a way to supply more current using a power bank? Thanks.
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@RyanC1681 Is your powerbank really able to provide 3.1 A total? Most powerbanks I've found that fit the provided chassis have two outputs but a maximum combined output of 2.1-2.4 A. I found a powerbank that has a USB C output with Quick Charge 3.0 can provide more, but then I ran into the problem of the QC 3.0 protocol needing to be implemented by whatever device is connected to that.
from jetbot.
@RyanC1681 I've found that the Nano requires from 0.5-1.5 A of current. During boot up it doesn't seem to go over 1 A, and around 1.5 is peak during object detection, but maybe it peaks a bit higher and my USB power meter wasn't fast enough to spot it. The driver depends on how fast you run the motors, when I set one to 0.9 and the other to 0.75, I was getting around 1.5 A locked motor current, but around 0.5 A free spinning. So ideally we should have 3 A total available, but it's not a constant current requirement.
EDIT: I am running the Nano at half power, so that might be why it boots just fine on 1 A.
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The battery in the BOM is NOW available in the UK via Amazon after discussions with Topstar (INIU)
Edited: Removed.
see blog
http://andysworld.org.uk/2019/05/25/all-the-parts-have-now-arrived-for-my-project-which-is-a/
from jetbot.
The battery in the BOM is NOW available in the UK via Amazon after discussions with Topstar (INIU)
@einsteinagogo
Is that an affiliate link I see there?
CC: @tokk-nv
from jetbot.
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