BLE - 3 ESP32 as Client, 1 ESP32 as Server - Communication

I want to have one ESP32 who sends data via BLE to the other three ESP32's.

At the end, the main ESP32 will get information if a certain button is pressed (the buttons are connected to the ESP32 through jumper wires) and send this information via bluetooth to the other three ESP32's (they would light up a specific LED).

I just want to ask, would such a project be possible?
And is BLE recommandable for it?

Thank you for your attention :smile:

Possible, yes, but not via BT. That's a communication between two paired units. What would it look like if Your neighbour hooks into Your phone BT, or changes Your TV?

What would you recommend instead?

RF, radio...
As I'm not radio active I suggest google on Ardiino + RF. Threre are several thinkable alternatives having different ranges, prices, data rates etc.
Hopefully some radio guy steps in giving more advice.

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Thank you very much :grin:

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