All Questions
20
questions
0
votes
2
answers
4k
views
How should I test my USB cables?
Some time ago, I purchased the FNB58 USB multimeter from FNIRSI with the intention of testing some of my USB cables. Ideally, I wanted to throw away those that are redundant and/or those that pose a ...
- 121
2
votes
3
answers
79
views
Power Cycling USB
BACKGROUND
I am connecting a USB device to a PCB with a microcontroller. The USB must be power cycled (plugged out and in) in order for the USB to be recognised by the software. The USB connector will ...
- 39
0
votes
0
answers
283
views
Connecting a smartphone android camera while charging the phone
I am hoping for advice. I have a android camera (the same as in this video: https://www.youtube.com/watch?v=AvWIp5vtsEU) and want to connect it to a Sony phone to see if I can use it as a streaming ...
0
votes
2
answers
213
views
Two USB ports for one IC
I have to get two USB 2.0 ports connected to a single chip delivering data and power. If only one port is connected, this connection and power should be forwarded to the IC and if both are connected ...
- 1
6
votes
1
answer
359
views
USB 3.0 power and usb 2.0 data
I am planning on providing a system with the option of powering via USB.
Now the system will require greater than 100mA, so USB 3.0 interface will need to be used for powering the system.
The data ...
- 61
1
vote
1
answer
10k
views
USB Charge and data separate cables
Is it possible to split micro USB to USB cable so two cables (data + and data -) go to the PC with USB and two other power cables go to power brick?
- 13
0
votes
2
answers
298
views
SharkX6 Flight Controller USB data connection cable [closed]
I have a SharkX6 flight controller (FC) that I am using in a quadcopter that I am building. The flight controller came with a broken (the fried IC is to the left of the '100' component) power ...
- 9
3
votes
3
answers
9k
views
Will cutting the data lines of USB still let the power to go through?
I am trying to Charge a USB connected device through a computer without transferring data.
An USB 2.0 cable should have 4 wires: Vcc, Data+, Data- and Ground. If I only cut the Data wires and let the ...
- 189
0
votes
1
answer
653
views
If a USB Cable is being used between two devices, are the power wires needed?
I am trying to figure out a way to give power to an android tablet and a DSLR camera at the same time (for a photo booth).
I was able to purchase an AC adaptor "battery" plugin for the camera, but ...
- 350
5
votes
3
answers
7k
views
2.5mm Jack to USB data Cable
I was recently diagnosed with Type 1 diabetes. With the need to test my own blood upwards of 8 times a day I have a ton of data to keep track of. My testing unit has the ability to upload its data to ...
- 185
4
votes
1
answer
3k
views
How does USB 3.0 negotiate power states?
I noticed, in another question, a comment regarding USB power states. I know that USB 2.0 negotiated power by tying the D+ and D- lines to specific voltages but I can't seem to find any information ...
- 3,598
-2
votes
1
answer
517
views
What actually limits the speed of a USB flash drive? [closed]
My system outputs data through USB which is to be stored in a external memory. But it seems that flash drive is not having that much speed like that specified in USB 2.0 protocol.
What actually ...
- 3,192
3
votes
1
answer
4k
views
How to "Mirror" or "Split" bar code data scanned by one USB scanner to two computers using Y cable? [closed]
I have searched this site and many others looking for a way to "split" or mirror data from an USB device (bar code scanner) to two computers. We need to do a parallel cut-over from a legacy asset ...
- 31
2
votes
4
answers
339
views
Gui float data from micro controller
I am building a framework for a data acquisition system where the controller sends a (integer/float) data in to the GUI. I have done some ground work on data types and compilers and found out that ...
- 2,138
0
votes
2
answers
123
views
Wireless data acquisition for PC [closed]
I’m looking for an off the shelf device to send a serial stream of data (low speed ok) wirelessly to a PC. I’m guessing the easiest way is through a comm port or USB port. Distance is less than 25 ...
