Questions tagged [distance]

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Making a device vibrate once seperated from another [closed]

I'm trying to make two devices, one with a vibrating motor in it. Once the two devices are separated at a distance I need the vibrating motor to start working, telling me that the two device's have ...
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can we use TCRT5000 sensor instead of IR proximity sensor?

I am planning to make a human following robot which requires two IR proximity sensors. I already have two TCRT5000 sensor. Can I use it instead of it?
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What module should I use for high precision localization?

I have a toy car and I want to measure the coordinates/location of that car in my house. It need to bee high precision equipment so GPS won't work here. My precision requriments is 5+- cm and the ...
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2answers
113 views

Is an Ultrasonic Sensor or Infrared Sensor better for measuring distance (to/from a human body)?

I'm trying to make a sensor to detect that a person is within 50cm to trigger a function. But when I use the HR-SR04 sensor, it works accurately on flat surfaces (e.g. walls, books) with a margin of ...