Part Number: BQ27750
Hello,
I want to use the bq27750 chip to read the state of charge of a 9V battery. For this I use the I2C interface of an Arduino.
I am not sure how to configure it correctly to get my information.
I start by sending the address 0x55 to start the communication.
However, I'm not quite getting through the communication protocol yet.
Which bytes do I have to send, if I want to know the current voltage value, for example.
I would build the protocol as follows:
0x55 (adress) - 0x08 - 0x09 and 16 bits for the answer. Is this correct?
Which general configurations do I have to make in order to be able to read out values such as charge state, temperature etc.?
Is an I2C protocol normally not structured in such a way that the address is sent, then the register to be addressed and then the data are transferred?