Quote Originally Posted by mackrackit View Post
Maybe you should look in the manual that came with PBP when you purchased it??
Goog Idea, however I diid it before I opened this thread. Also I have read the on-line help of P2P. Both are the same. Nothing about "control" in I2CWRITE command. I have read all threads about I2C on this forum. It appears more users have problems with I2CWRITE.

In this moment I am using I2C analyzer and doing tests of communication on the I2C bus during I2CWRITE command. I think, the I2CWRITE doesn't work correctly. The problem isn't in hardware LAB-X1 and/or ByVac I2C LCD interface. The problem is in the P2B. The I2C is usable maybe for single EEPROM but not master/slave I2C devices on the bus.