this post was submitted on 06 Mar 2024
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Communication between Raspberry Pis on different networks (sh.itjust.works)
submitted 8 months ago by illectrility@sh.itjust.works to c/python@programming.dev
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I'm sorry if this isn't the place to ask this, I also asked over at !raspberrypi@lemmy.ml.

So what I want to do is this: Two RasPis are at different locations. They're on different networks but have internet access. Pressing a button on one of the Pis turns on an LED over at the other Pi via GPIO. How can I make the communication work? My first thought was Telegram bots as I'm familiar with those for notifications but you can't have Telegram bots communicate with each other, sadly. Is there a good (and secure) solution to this? Preferably using Python code and without continuous costs like server hosting, etc?

Thanks!

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[โ€“] xurxia@mander.xyz 1 points 8 months ago

There are free IoT cloud solutions to send and receive data and that work with MQTT protocol for this purpose.