http://www.ereshop.com/shop/analog-inpu ... p-805.html
I'm relatively new to i2c and I can't figure this out at all. The board is connected to a 4-20 mA current loop generator (with a current loop).
i2cdetect -y 1 shows the board at 0x68.
I can access the board via smbus and notsmb, but I have no idea how to use it.
The data sheet provided there (http://www.ereshop.com/shop/free/I2C-AI418S_SHEET.pdf
) doesn't offer much help. I have the jumpers set to the first setting and it says the address byte for reading is S[0xD1]A, address byte for writing is S[0xD0]A.
I tried sending those and didn't get back anything useful. I don't know how many bytes to expect or even what those bytes are for.
Has anyone done something like this before? Any pointers? Any i2c primers I should be reading (preferably for someone as dumb as a bag of rocks)?
I'd appreciate any help.