Questions tagged [indicator]
The indicator tag has no usage guidance.
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A simple visual indicator (LED light?) when a USB fan is on
I have a USB fan, some distance away from me, which I use occasionally. It's plugged into a charger and it has a manual switch. I sometimes forget to turn it off, because it's very quiet so I can't ...
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What is the name of these old colored indicator bulbs and are they still manufactured?
As an electronics project, I would like to create a PCB that generates random blinking lights similar to the computer panel props featured in late 60s/70s era television series:
The scale is possibly ...
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How to light up a rocker switch powered by a battery of only 1.5v?
I have a small hobby project for which I wired 4 AA batteries in parallel to achieve the desired result, which comes to 1.5V, as the batteries are in parallel, which is what works for my project.
My ...
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Power indicator circuit with overcurrent signaling
I'm seeking advice on a circuit I've developed through experimentation, patience, and determination.
While I have a technical education in electronics and electric systems from middle school, I'm not ...
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Will my circuit to add status LEDs to indicate VBUS current draw work as intended?
I am a mechanical engineer with very limited electronics knowledge. Recently I decided to undertake a project to design a USB 3.1 hub for a personal project, to get a better understanding of ...
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Simple overvoltage protection circuit (LED indicator modification)
I saw this overvoltage protection circuit from theoryCIRCUIT. I was wondering if instead the LED indicating that voltage continues to flow, we could instead make the LED turn on when overvoltage ...
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Best way to indicate a good ground connection?
I'm working with 120VAC, and I'd like to have an LED indicator light showing that there is a connection to ground (earth). Like the way a receptacle tester does.
I could connect the LED between hot ...
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MOSFET P-channel switch with LED indicator
I'm trying to design a P-channel MOSFET switch with LED indicator. When the motor will turn on at same time a led indicate the the MOSFET switch is turned on. I could not find such a circuit.
Can you ...
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Multiple 240v AC LED indicators cross-talk
I have these 230V AC indicator LEDs, which I'm using in a project to indicate when I have various switched circuits live.
Due to space constraints, the switched lives of these LEDs are routed through ...
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I am looking to cut off voltage from an LED when voltage drops below 1.7V
I have this indicator that will inform me with an LED when a switch goes bad. I am creating a test unit that will mimic the equipment. The equipment wont show a fault unless the switch leaks more than ...
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Indicator LEDs to see which voltage rail is used to power the board
I have two voltage rails, 3.3V and 5V, that can be used to power the board, switchable by SPDT.
I am trying to provide two indicator LEDs so it is always obvious which rail is being used.
Probably ...
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What type of SMD LED packages are used in the for tell tale in the dashboard of bikes? [closed]
I am trying to identify what kind of LEDs are used in tell tales found in the dashboards of bikes etc. The ones used to show if the high beam, indicator is turned on or any warning lights.
Because the ...
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Missing indicator in XL4016 buck converter module
I’ve bought below XL4016e1 buck module. There is an empty spot between the Indicator light and Input negative, between the left ...
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Is it possible to add an indicator LED to a mains outlet?
I am building a power filter/distributor for one of my HiFi systems. Nothing fancy, but I wanted to add an LED indicator for each outlet, signaling that a device is connected and is drawing current ...
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Linear or logarithmic LED bar for speaker overload protection
I have built a 2.1 home cinema audio system. The amplifier modules are severely overpowered for the mid/high speakers I use.
Main reason for this is that the amplifier modules (TDA8954) produce an ...
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