Questions tagged [level]
The level tag has no usage guidance.
79
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Using 1.8V digital signals with TPS281C100A and AP22653A
I plan to use the following two devices: AP22653A and TPS281C100A and drive the enable pin from 1.8V logic. They are specified for minimum 3V3 operation, but for both inputs the VIH is 1.5V. Would ...
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6
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Water level monitoring: simplest way
I like to develop a water level monitoring for my cistern tank: empty level, low level, mid level, high level.
One of my booster pumps broke because it runs even when there is no water in the cistern ...
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2
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Level shifter controlled by external voltage (VL,VH)
I used a MOSFET to design a level shifter, but it must be adjusted according to this value by receiving an external power source.
For example, if VL = 1V and VH = 4V, the output should be between 1V ...
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209
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Parallel resistor in line-level output
I have a mono line-level output and I want to share it with two devices which will receive the line level output and use it.
In one of those devices I need to use a 10 kΩ potentiometer in order to ...
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254
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What is a feasible way to measure water level in a pool skimmer?
I need to implement a wireless autofill system for a pool. The skimmer is the only place that I can install the sensor (nine inches in diameter, made of ABS). When the pool is full it is 2" from ...
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adding a low fuel light
im wanting to add a low fuel level light to my car. it has a fuel gauge, 33 ohms full 270 ohms empty.
the tank has two terminals, one to the body for ground and one directly into the back of the gauge....
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176
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How to do a pulse generator whose pulse width is controlled by a voltage measured in proteus without using a microcontroller or an analog circuit?
how are you?.
I'm trying to emulate the behavior of the HC-SR04 distance sensor in proteus but using variables.
I succesfully could make a simulation of a water tank whose level is indicating by the ...
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4
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933
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Confusion about edge/level triggering interrupt
I have read this answer.
My understanding is, there are actually 2 lines logically:
clock/gating line
event/interrupt line
And the clock/gating line can make the circuit take event input at an ...
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2
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1k
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Are those electric fields dangerous?
Is 8.6 amperes per meter, 70 microtesla, 0.70 gauss, 695 milligauss, safe on long time exposure?
I am just worried.
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1
answer
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Control R channel volume from L channel
I have a mono line level (signal and GND) and I want to create L and R channel from it (to output sound to 2 separate speaker) BUT I want to be able to control the volume of the R channel.
Creating ...
3
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1
answer
435
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Get resistor values for voltage divider/attenuator
I have a 10 V audio source that I want to bring to line level: 1 V. That's pretty easy: I just need to use a voltage attenuator, 10:1, like in the image below. I used resistor values of 1 k\$\Omega\$ (...
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3
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256
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Using the same power supply produces no sound [closed]
AS SOME OF YOU ASKED, here is the video showing the connection and the problem: https://photos.app.goo.gl/GRsxQ783Rec6jVxo6
One clue that I got today: the problem happens EVEN if I disconnect the ...
3
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1
answer
455
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Water level indicator LED lights up even though circuit is open
I have built a water level indicator with a 555 timer. The supply is a 12 V SMPS adapter, the output of 555 timer is a square wave with a 21 kHz frequency. I pass this signal into AC coupling to ...
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1
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325
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Humming sound when not touching wire
I explained this problem in a video so you can see with your own eyes the problem... touching the GND wire makes the problem go away, however touching the signal wire creates the problem. Even ...
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2
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969
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Convert speaker level to microphone level
I have a digital piano without line output (not even earphone output) but I would like to record what I am playing. So I decided to convert the speaker level to mic level so I can record the audio in ...