[SOLVED]Wireless Communication for Home IoT Nodes

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Newbie
i want to make a communication to nodes which basically is a relay. I do not want to spend cost on equipping every nodes with mcu, so my idea is to make a one line wireless communication between main mcu and nodes. First idea that came to my mind is using rf 315MHz receiver on each nodes, but it would interfee each other right? So are there any solution on this? Thanks

KlausST

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Staff member
Hi,

I do not want to spend cost on equipping every nodes with mcu

What's the difference in cost between your 315MHz_modules and an ESP-01?

Klaus

Pretty cheap modules -

Just search "ESP8266 relay" at above web site.

Regards, Dana.

Points: 2

Newbie
Hi,

What's the difference in cost between your 315MHz_modules and an ESP-01?

Klaus
the module only cost $1 while ESP-01 around$2.76 each

Newbie
Pretty cheap modules -

Just search "ESP8266 relay" at above web site.

Regards, Dana.
that's something. Thanks

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