Controlling the AD5254 Digital Potentiometer

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i'm having heck of time trying control first potentiometer rdac0 in ad5254 chip.
i've read 2 other forum posts i've found on particular chip , i'm trying modify digital_potentiometer example controls ad5171 digital potentiometer similar exceptions.

the question following:
how query acknowledgement slave chip  supposed come after sending slave address down bus, after instruction set slave , after data byte? 

i'm assuming wire.h library takes care of start sequence , notifying slave (by sending slave address down bus) has instructions coming way wire.begintransmission()

does library take care of acknowledge bit slave sends out? or have end transmission , query bus?

any insight helpful.

thanks in advance.

p.s. if has working sketch chip great if can shared.  i've tried 1 neurostar can found on these forums not quite work.  if else has gotten code work out changes please let me know can troubleshoot set-up.

this should answer of questions:

http://www.gammon.com.au/i2c


it's not complicated, library of it.


Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Controlling the AD5254 Digital Potentiometer


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