Questions tagged [sensor]
Sensors convert a physical quantity (e.g. temperature, pressure) into an electrical signal.
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Help identifying I2C sensor from Propel Star Wars Drone
I have a sensor from a Propel Star Wars drone that I can't identify. The metal part of the sensor is marked with "A6103 040". I have tried various libraries and sensors, including BME280, ...
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Confusion with two types of differential signal coupling
I'm having difficulty to articulate the question. But perhaps I might get close to it by an example.
I know that in differential signaling, both the signal and the receiving amplifier can be in ...
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How to read position sensor values more accurately for stpper control?
I am using Feather M4 express development board with DC Motor + Stepper FeatherWing and Ethernet FeatherWing stacked on it. The idea is to read the target position from the UDP from 0 t0 360 degrees ...
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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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Impedance measurement using AD 5933
I hope this message finds you well.
I am using the AD 5933 evaluation board for impedance measurement, The data sheet says it can measure the impedance up to 10M ohm. I am currently measuring the ...
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Please help me identify this IC - top marking "CEK"?
Please help me identify this IC - top marking "CEK" such as picture below:
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Detection system for specific material
I'm looking for some ideas on how to detect some kind of material/tag that can be electrically distinguished amongst organic material, wood and iron. Such material/tag should be possible to detect ...
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Connecting Two 24VDC Power Supplies
I have a system that has multiple different gas detection sensors and we are datalogging our readings onto a PLC. To power our sensors we are using a 10 A power supply and have everything grounded ...
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I need a sensor setup to detect if something passes through an opening after I click a button [closed]
I am making a compartment that holds up to 7 different vitamin pills separately. Each of the 7 slots has a small doorway that allows the pills to exit from the slots (after I click the button) and ...
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Suggest appropriate substitute for cable glands
I have a 3.3 mm cable coming from a sensor (3.3 V) and going to an instrument.
I would not like any joints in the path in the form of connectors which could make problems for the sensor if the ...
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Modelling an eddy current sensor
An eddy current sensor is modeled as an air core transformer with shorted secondary:
simulate this circuit – Schematic created using CircuitLab
According to Kirchoff's laws, the total voltages ...
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Interfacing with 0..-2v Sensor using ADS1115
I'm designing a circuit to interface with a sensor that operates on a ±12VDC power supply and outputs a signal between 0 and -2V. I plan to use an ADS1115 ADC for reading this signal.
Circuit Design:
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Design of very long serial signal systems
In the current case there is a single signal conductor, tens (hundreds?) of meters long, which serially connects door and window sensors for a whole building. The sensors are simplest possible ...
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Opamp dual package IC configuration
I have a question regarding the configuration of opamps for sensor signal amplification. I have a circuit with two sensors going through identical signal conditioning circuits (amplification and ...
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Temperature Sensor Auto
I'm trying to make a temperature sensor for a Golf MK2, with an LM3914N to light an LED bar with 10 LEDs and in the signal I'm using a voltage divider for R2 to be the temperature sensor that operates ...
