The indicator tag has no wiki summary.
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 ...
1
vote
4answers
345 views
Current Indicator
I want to turn an LED indicator on when current is flowing through a path. If there's no current the LED will be off, and when there's current, the LED would turn on.
I've been experimenting with ...
4
votes
3answers
491 views
What is the best low-power color indicator?
The project I am working on requires a color indicator which shows the current state (either red, green, or yellow).
Ideally the indicator would have a large surface area so you can quickly glance at ...
8
votes
3answers
290 views
Measuring force developed by a robot
I've been playing around with a Lego Mindstorms NXT robot, gearing it for speed and power. To my dismay, when geared for power, it wasn't any harder to stop than when geared for speed -- I suspect ...
16
votes
3answers
4k views
Low Battery Indicator
I'm looking to make a battery life indicator that I can use in conjunction with a micro-controller. I'm hoping that I can then read the current battery life remaining and increasingly put the ...
