PING))) Substitutions

MachineMonkey

Hi y'all,

I need to measure the level of water in a container. Ultrasonics are the way to go, I think. But I want to protect my sensoir from the water itself. Does anyone have experience with replacing the stock Ping transmitter and receiver with ceramic component?

I've located a couple of sources that would work fine for moisture:

http://www.steminc.com/piezo/airtrans.asp

http://www.hobbyengineering.com/H2209.html

So far, so good. I intend to mount the Tx and Rx seperate from the board, so exact pin spread and sensor diameter is not terribly important. Can someone tell me which is the Tx and which is the Rx on the Ping? Or does it not matter once polarity is established.

Thanks,

Kalo

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Failure is not the only punishment for laziness; there is also the success of others.

- Jules Renard

Zoot

One transducer is the transmitter, one is the receiver. The Ping documentation has a diagram that shows which is which when you are holding the unit and looking at it from the top down.

www.parallax.com/dl/docs/prod/acc/28015-PING-v1.3.pdf

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When the going gets weird, the weird turn pro. -- HST

A.C. fishing

I made a water lvl detector a while kit. It is really simple. Water conducts electricity, so put a BS2 Pin probe on one side, and a Vdd probe on the other side, and if the water is up to that level, it will carry the + electricity to the Pin's probe, and the stamp can detect it.(Water conducts electricity)

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Somebody said...
-Never Underestimate the power of human stupidity.

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