USB is Universal Serial Bus. If your question relates to a specific chip, please mention it in your question.
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1answer
37 views
Board to board connection cable
I have a project where there are 2 board to be connected inside of a metal shielded chassis:
1) 2 layer power/analog/ext connector (usb/spdif/audio)
2) 4 layer digital board (lcd+mpu+fpga)
The ...
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0answers
27 views
How to / Can you take a 12V DC car charging cable and change it to a USB plug [on hold]
I have been using my dash mounted Radar detector (Cobra XRS 9470) for about six months now. It uses a 12V DC power cord that plugs into the cigarette lighter. Normally this wouldn't be an issue, ...
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0answers
21 views
Integrated touchscreen empowered by android cellphone
Not sure if this is the correct stack exchange platform for my question but I'm pretty sure you guys can help me out with my idea.
I was thinking about building a wall mounted touchscreen powered by ...
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2answers
71 views
How can USB extension cords affect of USB charging? [on hold]
I want to use USB extension cords to extend the USB power cords for various devices (specifically, an iPad and Android phones). When adding a USB extension cord to a closed system where the ...
2
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1answer
64 views
DC motor starting and stopping
I'm powering a motor, and instead of rotating at a constant rate, it rotates roughly a third revolution every half second or so; the rotation keeps starting and stopping. There's no load on the motor, ...
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3answers
99 views
RxD TxD equivalent pins in USB
I want to build a USB Programmer currently for AT89C51. I am stuck on how to make it communicate with PC. In RS232, the RxD TxD pins are straight forward, we just need to use Logic Level Converter to ...
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0answers
46 views
Eagle: Circular area under component colliding with traces
I am creating a PCB layout in Eagle and I noticed that when I add in the ground plane, there are two unfilled circular areas under the usb mini type B socket. Does that area need to be empty?
I ...
2
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3answers
72 views
Pin IO for a computer running Linux [duplicate]
I'd like to control a few input pins (say 5) and a few output pins (at least 2) from a computer. The computer has no parallel port. What is the best way to do this? USB-to-parallel adapter (anybody ...
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0answers
31 views
Not seeing set_address packet using USBTrace
I'm currently exploring the wonderous world of the USB Stack. I'm using a PIC18F2550 and the USB IO example available at www.moty22.co.uk. The code works as expected, but when using USBTrace (or any ...
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3answers
58 views
Output changing electrical currents from a PC
I need to send fast-changing electrical current from a computer to electrodes connected to muscle (Not the point).
I need to send multiple different currents simultaneously, and that the current ...
2
votes
2answers
48 views
USB header pinout, connecting a poorly marked cable
I have a "USB Cable" (http://www.evga.com/support/manuals/files/120-PG-1500.pdf pg 5 is all the info I can find on it) that connects my PSU to my computer for communication. My problem is the USB ...
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2answers
60 views
Radio waves reception through USB device
What do you have to do to receive radio waves, not only radio broadcast, but analyze what radio waves are around me, just using a computer, and some USB devide + antenna?
I suppose getting wifi ...
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0answers
66 views
PIC32, USB CDC + HID Composite Device fails with Code 10
I've been busy building a CDC + HID composite USB device for the past couple of weeks, and stuck with This device cannot start. (Code 10) error in Windows 7.
When looking at the device through ...
2
votes
4answers
101 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 ...
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2answers
63 views
Computer controlled air valve [closed]
I'm a software engineer but I've been asked to help on this.
I need to create a system where through software I can control the amount of vacuum in a pressure vessel.
The existing system has a large ...
