The I2C address can be specified two ways.
As a base 7-bit address or as an 8-bit address with the LSB a write/read bit.
The bus wants to see address 0x52(write) or 0x53(read).
The problem is the I2C generally refers to the 7-bit address (0x29)
And one shifts the address left by one and adds the read/write bit.
But lots of people interpreted the 0x52 as the 7-bit address rather than the write address.
Put 0x29 in your code if the code is going to left shift by one and OR in the write/read bit.
And by the way, this is an amazingly common mistake.
Half the datasheets advertise the 7-bit address, and the other half specify the write address.
It’s very confusing.
Our data sheet says: “…uses a default device address of 0x52.
And does NOT specify which type of address it is.
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