Go Down

Topic: Ultrasonic sensor Vs pressure sensors (Read 867 times) previous topic - next topic

Can i use a pressure sensor in place of a ultrasonic sensor in a robot type situation.

johnwasser

An ultrasonic sensor is usually used to detect distance to obstacles.  How would you use a pressure sensor?
Send Bitcoin tips to: 1L3CTDoTgrXNA5WyF77uWqt4gUdye9mezN
Send Litecoin tips to : LVtpaq6JgJAZwvnVq3ftVeHafWkcpmuR1e

Docedison

Well he could use a spring loaded bumper to move a switch or 4 or connect a microphone to the bumper and listen for the bump although it might not work too well for a couch or a large sleeping dog... but you could certainly use the reflective IR device home made or purchase one,  I've seen both red and IR commercially. Make one is the easiest way though easily calibrated and if you pulse the device  it should work or find a photo interrupter and gut it for the source/sensor and do the same. IR phototransistors are easy to find so are IR LED's inexpensively too. IR photodetectors can be made from LED's as well but that takes an op-amp, phototransistors are much easier, some even bring out a physical base lead to adjust sensitivity. Easy task too.  IMO

Doc
--> WA7EMS <--
"The solution of every problem is another problem." -Johann Wolfgang von Goethe
I do answer technical questions PM'd to me with whatever is in my clipboard

Thanks Docedison I'm going to substitute a spring bumper and have it hit a pressure sensor, just until I get my ping ultrasonic sensor.

Go Up