I guess doing it optically is out for some reason - I would have though
over that range that a flashing (& modulated?) LED would be
straightforward.
You may not even need the hall sensor if you have something to reflect off.
RP



Hi all,

Am looking for some ideas to transmit a hall effect output over a distance
of 5-6 feet wirelessley.

Key Requirement:

I need to measure a mximum of 10,000 RPM, but would like to avoid using two
pic's if possible (so i do not want a pic to aggregate the pulses and
transmit the rpm value over a RF link) so the idea would be to have a dumb
transmitter situated with the hall sensor that is activated every time a
magnet passes over a hall sensor and a reciever which would

This rules out a linx type Tx/Rx so my question....

are there any other RF solutions cheap (3-4 $) that would let me transmit
hall sensor pulses and recieve them at a distance of 4-5 feet?

Thanks
Jay


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