[SOLVED] Wireless Communication for Home IoT Nodes

[adnan0]

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]

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

 

[danadakk]

Pretty cheap modules -

0.83US $ 20% OFF|Esp8266 Esp-01 Esp-01s 5v Wifi Relay Module Things Smart Home Remote Control Switch Phone App Wireless Wifi Module For Arduino - Integrated Circuits - AliExpress

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

Just search "ESP8266 relay" at above web site.


Regards, Dana.

 

[adnan0]

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

 

[adnan0]

Pretty cheap modules -

0.83US $ 20% OFF|Esp8266 Esp-01 Esp-01s 5v Wifi Relay Module Things Smart Home Remote Control Switch Phone App Wireless Wifi Module For Arduino - Integrated Circuits - AliExpress

Smarter Shopping, Better Living! Aliexpress.com

www.aliexpress.com

Just search "ESP8266 relay" at above web site.


Regards, Dana.

that's something. Thanks