A proximity sensor detects the presence of another object without physical contact. There are many different kinds, examples include capacitive, inductive and others using various wavelengths including ultrasonic, visible and non-visible light and RF.
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Building a waterproof and cheap proximity detector
I'm new to electronics, so I would like to directions for building an effective proximity sensor.
Requirements:
Must detect objects within 10-50cm.
Waterproof.
It may be exposed to sunlight.
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Connecting Altera de2 to a sensor via UART
Is Nios II required when implementing UART core using the SOPC? (or a default Nios is included) I tried writing my own module for the uart connection but it didn't work out. I need a method to ...
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Vehicle buttocks detection
In my truck a warning light comes on when I go to take off if a passenger is sitting there but the seatbelt is not secured. After some research and thinking it may be their weight, capacitance or ...
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Q1113 Ir sensor verilog and Fpga board,how to program?
I have been working with s one of the line IR sensor from sparkfun(Q113). It has 3 port a vcc, ground and signal. As I know one way to find if the object is black or white is through reflection of ...
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PIR sensor current consumption too high. Need a different PIR?
I am trying to build a wireless motion detector that can work on a battery for a really long time. I am using this PIR sensor:
http://www.digikey.ca/product-detail/en/555-28027/555-28027-ND/1774435
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