Tagged Questions
4
votes
1answer
674 views
Y USB Cable with external 5V supply
I just got a brand new Nexus 4 phone and am a bit dissappointed that it doesn't support USB OTG. One reason is that is doesn't supply 5 V out of its USB port, as opposed to other Android devices I ...
5
votes
2answers
242 views
How is this crystal / ferrite bead / ground shield connected?
This is part of the schematic for a TI TAS1020B USB Streaming Controller MCU that I don't quite understand. Obviously the shield connects to one end of the ferrite bead, but what else? Are the XTAL ...
4
votes
5answers
425 views
USB micro B receptacle has 6 mounting tabs. How many do I actually need to ground?
This USB micro B has 6 mounting tabs. If I ground none or only 1 of them, will it ruin the signal? There is a pad for the signal ground that is separate from the mounting tabs.
Fyi USB 2.0 has a max ...
2
votes
2answers
343 views
USB port and bench power supply ground difference
So I recently coughed up the $250 for a semi decent bench power supply, the thing that got me though is when powering a circuit from this unit and connecting the BusPirate via USB is that the ground ...
1
vote
3answers
1k views
Sensor reading is chaotic when Arduino is powered by laptop unplugged
I have a Sharp proximity sensor connected to my Arduino (analog input). This Arduino is connected and powered through USB by a laptop.
When the laptop is plugged in, everything works fine (I get
...
5
votes
1answer
1k views
Arduino Duemilanove external power source with USB connected
Can Duemilanove USB interface be used for data transfer/programming when the board itself is connected to an external power source? (say, USB is not powerful enough)
What are the requirements for the ...
