Questions tagged [water]
Involving or pertaining to liquid water (flow, storage, measurement, conductivity of, etc.)
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Help understanding simple Arduino circuit from a datasheet example
I'm trying to use a water sensor in a new design, and I don't understand the example circuit that is given in the datasheet, even though it looks very very simple. I must be missing something. Any ...
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Does leaking water damage 7-segment displays?
Does leaking water damage 7-segment displays, so that some of their LEDs can light up but others can't?
If yes, can a 7-segment display which has been so damaged be repaired?
If yes, how can it be ...
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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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Is it possible to do water detection with a single electrode?
I need to detect the presence of water, but there is a catch. I can only have one single electrode contacting/submerged in water. It is in a mini-tank made of plastic (for a handheld device) so I ...
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If a shipboard antenna isn't "grounded" to the water on a fiberglass-hulled boat, would using the radio (TX or RX) attract more lightning?
Because of my poor understanding of the interaction between static and flowing electrical charge, I don't trust my intuition about the answer to this question.
Essentially I'm asking if there could be ...
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What is this electro mechanical sensor from a washing machine?
I am taking apart an old (2010) washing machine as a passtime, perhaps some day assemble a garden watering device out of the parts. What would the pictured device be? The white tube was sealed against ...
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Modifying a TDS Module for Higher Electrical Conductivity Measurements
I recently acquired a Keyestudio V1.0 TDS module, primarily used for measuring the electrical conductivity of water. The module is recommended for 0-1000ppm or 0-2000μS/cm measurements.
However, my ...
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Peltier-based liquid cooling system
I-m doing a liquid-cooling project for fun, and, well powering it and cooling the hot side seems borderline impossible. I need some help.
To clarify. This is literally only to cool water, and not to ...
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Sensitive electrical flow switch for 1-1/4" plastic pipe
As part of a water-treatment system without a holding tank, a chlorine pump is installed on a 1-1/4" water LDPE pipe. To test for flow, a section of the pipe was replaced with 2" PVC, and in ...
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Is USB-C unsafe in humid/water conditions? [closed]
We had a case in France of a teenager who died by electrocution while taking a bath when his phone that was being charged fell in the bathtub (as reported by the press).
How is it possible taken into ...
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Creating a thermostat regulated water heat bath that won't electrocute me if I touch the water
I have a basic knowledge of electronics and an even better knowledge of film photography.
I'm looking to create my own heated water bath with a thermostat that will allow me to adjust the temperature ...
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Why is my multimeter not measuring current?
I'm doing a little bit of experimentation with a glass of water and a 9 V battery. I added a little bit of salt to the water, and I measure the resistance in the water from probe to probe to be ~60 kΩ....
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Washing potentiometers with de-ionized water, or with distilled water?
I am aware water conducts electricity because of its impurities.
However I am not sure if distilled water is pure enough to be safe to use to wash the potentiometers(and electronic boards in general), ...
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Can I use a plastic water tube as resistance to protect bathing people within a safe voltage?
Suppose home water has a resistivity of 2 Ωm, home electricity is AC 220 V, and human body in shower has a resistance of 1 kΩ.
Then a resistance R = 8.2 kΩ, which is a plastic water pipe of 1.29 m in ...
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Why are two 555 ICs used in this automatic plant watering system's circuit diagram?
I have been working on this project but couldn't figure out why two 555 ICs are used and how they contributed to the operation.
