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Cheap On/Off Switch Solution From 50' Range?

Question asked by eeboarder in #Coffee Room on Oct 15, 2008
eeboarder
eeboarder · Oct 15, 2008
Rank E1 - BEGINNER
I'm looking for a solution for a single-pole switch(similar to a home light-switch) that can be turned off from 50'. There will be line of site. The device to be turned on and off will be using about 8-9 Amps at 12 VDC. On the control side, I was thinking about a cheap HC12 setup to an N-channel enhanced MOSFET. Is there anything cheaper and simpler?

What about the on/off control at that range? IR or RF? Something out of the box would be ideal. Thoughts? Posted in: #Coffee Room
binu_ji
binu_ji · Oct 28, 2008
Rank D3 - MASTER
if it is line of sight then you can use IR, it can work for a maximum distance of 10m. If you need more distance then go for RF. with RF you can get a maximum distance of 100m.

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