All Questions
15 questions
3
votes
1
answer
485
views
Can you separate the D+/D- wires from the GND/Vcc wires in a USB 2.0 cable?
I am currently designing a wiring loom which includes USB 2.0 cable within it. It is critical that the thickness of this leg is as thin as possible due to the constraints of my client. Unfortunately, ...
- 33
3
votes
1
answer
754
views
Need help identifying the 4 microphone wires in my laptop webcam
I am trying to adapt my laptop's webcam into a USB webcam. Although I couldn't find any schematics online, the manufacturer did print (I assume) labels to identify the 8 wires coming out of the webcam....
- 31
0
votes
2
answers
153
views
USB Receiver switch between two PCs
I use two desktop PCs and one set of wireless keyboard and mouse (Logitech with the 2.4 GHz Receiver). I got tired of plugging and unplugging the receiver so I took two old usb cables, a usb socket ...
-1
votes
1
answer
135
views
2 LEDs on 1 SPDT switch
I'm a beginner who saw a video from YT channel DIY Perks about hooking up a 3w LED to a phone and decided to try it, changing it a little bit.
The basic idea is getting power from a phone using a USB ...
- 1
0
votes
2
answers
1k
views
What causes a USB Cable to fry a PCB?
When assembling my own USB 2.0 spec cables, I haven't had any experience with frying PCBs they get plugged into (of custom-made keyboards primarily), but I hear stories of it happening. So I'm trying ...
- 273
-4
votes
1
answer
3k
views
Converting a wireless mouse into a wired mouse [closed]
I saw this question in one of the electronics sites, and many answered him that converting wireless mouse will damage the PC's USB ports .
The question on those websites was:
I am trying to convert a ...
user202574
1
vote
4
answers
5k
views
DIY 5V power supply from phone charger
I want to power 25 Adafruit NeoPixel LEDs. According to the specifications they draw a maximum of 60mA at 5V each. In total that would be 1,5A at 5V.
I would like to use a 2A USB phone charger as a ...
- 13
0
votes
2
answers
733
views
Getting circuit input on a computer
(Modified repost from stackoverflow since it might be more suited to this site)
I wanted to try building an arcade stick starting as simple as possible(ICs and basic electronic components as opposed ...
- 1
1
vote
1
answer
847
views
Which end is host in a USB-C to USB-C charging/power cable?
I have two different kinds of DIY USB-C connectors...one kind that is rigged to be a "host" USB-C connector (pulled-up with a 56k resistor per spec), and the other is rigged to be a "device" USB-C ...
- 273
3
votes
1
answer
897
views
What causes failure in longer USB cables?
I wired up some USB-C 2.0 to USB-A 2.0 cables, and tested the maximum length I could get out of them when connecting a PC (host, USB-A) to an external hard drive (device, USB-C). I got stable power ...
- 273
2
votes
2
answers
12k
views
Problems trying to wire a USB-C cable
I have been trying to figure out how to custom wire a USB-C to USB-A cable for a while, with no luck.I have tried some different connectors, but wanted to get some outside ideas on what I might be ...
- 273
3
votes
6
answers
7k
views
How can I build a simple USB signalling device?
I would like to construct a simple device that plugs into a USB port and sends the computer a signal (i.e just a 1) when a user presses the button or switch etc.
I ...
- 445
3
votes
1
answer
716
views
How to find connections on board? - DIY Keyboard from Old Laptop
I have a project that I have hit a wall on. I need your guidance!
I need to find the spots on the board for the 4 USB connections.
The attached photo is of the board.
There are 4 connections I need ...
- 33
1
vote
3
answers
10k
views
Wiring of a USB Y-Connector [duplicate]
Recently I bought an LG External DVD Writer that is TV compatible. But after a couple of times it stopped working on my Sony LED TV. It would start spinning, but stop after two seconds. This would go ...
- 175
0
votes
2
answers
3k
views
Has anyone built an rs232 to usb converter?
I want to implement serial communication into one of my projects, but I'm hesitant to use a serial cable due them them being exceedingly hard to find nowadays. I found an old converter and took it ...
- 1