So, curently my project requires wireless communication with a connection like in the picture. Where 1 master can send data to 2 slaves and both slaves can still communicate each other both send and receive. Is there any wireless communication that allows this kind of communication? thank u in advance
I think you are mixing up what a master and slave means. A master will tell a slave when to send data back to the master. This will allow the master to control when a slave is transmitters. If you have the slaves sending and receiving to each other there is a danger of two transmissions at the same time, and this can't be allowed to happen because the receiver will receive a corrupted signal. So your diagram, as drawn does not make sense.
If you want the two boxes labelled "slave" to communicate it has to be through the master. The master would pole the slaves asking if it had any information to pass to the other slave. If it had it would transmit it to the master which in turn would transfer it to the other slave.
You haven't mentioned the distances involved.
Look into ESP-NOW which can do exactly what you want to do when using ESP32 or ESP8266 devices.
Don
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