Setting the Read/Write Bit in I2C Message



i need send ad hoc message sensor tell wake , measure, requires communication contains slave address , write bit (0) sent the
master. can standard data fetch.

i've spent hours looking on , can't see how send transmission only, have missed something?
tried variants of begintransmission, write etc. no avail.

so need send:
start, 7bit address, write(0), slave ack, stop

have tried begintransmission followed endtransmission? (dunno if work without write give shot).
the read or write bit set wire library.

pete


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Setting the Read/Write Bit in I2C Message


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