The monitor tag has no wiki summary.
-6
votes
0answers
43 views
Two signals on a single Monitor VGA [closed]
Is it somehow possible to have two PCs connected to single display via VGA, to make the screen look like this:
Sort of picture-in-picture view of both PC-s screens ?
2
votes
3answers
141 views
Low current battery monitoring
I want to run a micro-controller from a 1S lipo through a 3V linear regulator. I need to measure the battery voltage however. The problem with using a voltage divider is that it would drain the ...
1
vote
2answers
31 views
Creating a unit to input an array of different computers display/sound and output only 1 with a switch to select
I have a few computers and I was wondering if there was an inexpensive way to link them all to a box that I would be able to use to select which ones I want outputted to my monitor(s).
I've only ...
1
vote
1answer
84 views
What's the input resistance of an opto-isolator?
I need to sense if a 48 volt power supply is supplying voltage or not, I plan on doing this with a opto-isolator and I am happy with the output circuit from isolator.
Can I connect the input of the ...
1
vote
1answer
101 views
How to measure force that applied on grab bar
I recently start a project to measure the force on a bathroom grab bar. The force/load is applied by the person who need to the grab bar for assistant. My aim is to do the real-time monitoring of the ...
3
votes
2answers
239 views
Custom VGA output : what resolutions are expected to work?
I am thinking of creating a device which displays graphics and animation to generic computer display with 16:9 aspect ratio via analog interface (D-sub).
The question is which resolutions are ...
0
votes
0answers
177 views
Electromagnetic radiation from specific monitors [closed]
I'm concerned about the health impact from EMF produced by home/office appliances. In particular I would like to know if somebody measured the Electromagnetic radiation of any of the following ...
6
votes
4answers
131 views
Placement of undervoltage monitor and cutoff
Suppose I have a circuit running at 3.30V, supplied via an LDO regulator (e.g., ADP124), powered by a Li-ion battery. In other words:
Now, I would like to implement an undervoltage cutoff to "turn ...
-6
votes
3answers
214 views
Powering Laptop internal monitor
So I have a problem with my old laptop. Internal monitor is not working. External is working.
So I tried to understand what's the problem.
I tried to check if inverter is broken. It get's a good 19V ...
0
votes
3answers
116 views
Getting 7-12V from a computer monitor
Does anybody have an idea how to safely get 7-12V from an ordinary LCD computer monitor?
I wish to control the monitor via a microcontroller after the fashion of the guide at lucidscience. I'd like ...
0
votes
2answers
100 views
battery management IC - duracell alkaline
I'm trying to monitor the health of my duracell consumer battery.
Is there an IC that can do this? I've come across the MAX6775, but it appears that you have to use a voltage divider. Isn't this ...
0
votes
4answers
1k views
How do indicator light circuits work?
On many control panels, one finds indicator lights that indicate whether a device is working. I.e. not only whether it is switched on but whether current flows.
E.g. a car dashboard which indicates ...
3
votes
3answers
2k views
LCD / LED panel power consumption
Does an LCD or LED monitor consume lot more power if the pixels are changing their colors or does the backlight have way more impact on power consumption, which makes changing pixel colors' power ...
1
vote
2answers
108 views
Non intrusive controlling & monitoring system
I have read and researched online about electric monitoring systems like the kill a watt and wattspn and i have observed something in vpmmon, they do reuire intrusive devices like sockets as means of ...
2
votes
2answers
456 views
How to make a VGA monitor display a white screen at all time?
I am hacking around with an old (CRT) VGA monitor. Trying to make an oscilloscope.
What I want is to make the monitor display a blank white screen at all time, when the power is connected of course. ...
-1
votes
1answer
512 views
Use laptops monitor on another computer [closed]
I just bought a new pc, but i dont have a monitor yet. Is it posible to use my old laptops (omnibook 3000) monitor with VGA cable?
Added:
Options
Old PC working as a PC - just connect somehow - ...
5
votes
4answers
833 views
Power monitoring 240VAC devices
I'd like to monitor the power usage of a number of single phase mains devices (0-10A). The system is to be added to an industrial automation system (on DIN rail), and should be able to talk to a ...
1
vote
2answers
2k views
Hacking a display [closed]
I'm a computer engineer, otherwise total n00b to electronics. I have this old 15" display (ltn152w5). I would like to turn it in a st. valentine gift for my girlfriend. I would like to frame it and ...
4
votes
2answers
330 views
Can a computer monitor output light invisible to the human eye?
From what I understand a computer monitor can output lots (couldn't think of a better word) of colours. Is it possible for a computer monitor (television etc) to output light invisible to the human ...
1
vote
1answer
829 views
Serial port monitor for Arduino in Eclipse (on Linux x64)
I like to program my Arduino using Eclipse. However, I still need the Arduino IDE to use the Serial port monitor.
This is very inconvenient and breaks my work flow
I tried to use RXTX but this would ...
0
votes
2answers
136 views
Cheap visual indicator for a PA loudspeaker line
I have a PA system which is outputting at most 200Vrms AC peak, around 100Vrms AC nominal, from the transformer. The current is around 4Arms.
Since the system is comprised of 12 output transformers, ...
0
votes
1answer
284 views
TFT Monitor output is blurry and weird looking - but OSD works fine
I don't really know how to describe what happened to my monitor, but I made a small video here: http://www.youtube.com/watch?v=Gjh5crE-Zx4
In summary, the output of the monitor is all garbled, but ...
1
vote
2answers
571 views
Low Voltage Shunt Regulator
Hey, I came across this Low Volatage Shunt regulator on a Hobby RC forum, I am trying to figure out how the resistor Values are Calculated,
...
