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max Payload data



Hi,

I still dont have the hardware to check it,

but my question is about the maximum payload data that I can send in one message!

as I see for example that the movement sensor in the sensor tag project is sending 18 bytes as notify!

in my project I will use most of the time so often a message from the central device as "write request" and "read request".

so what is the maximum payload data that can be sent in write/read request over one packet in the air and not to send/receive one long message without dividing it to small packets?

and so can I find a simple example to do that?

******* All I need is to use Write/read request from the central to the peripheral to exchange data with my own protocol, lets say if I can send 40 bytes in write or read request so Iit may be enough! so what is the maximum bytes I can send? *************

Thanks,