I’ve got a load of grove nfc 1.1 boards.
On the wiki seeedstudio.com/wiki/Grove_-_NFC it says to cut the UART->P1 jumper, and solder across P1 and I2C.
But the 1.1 boards have 3 jumpers,
UART -- P1 I2C RX ---- P2 SCL TX ---- P3 SDA
and there are no instructions on the wiki about how to change the jumpers for I2C.
I first tried following the instructions on the wiki and just changing the first jumper, like this:
UART P1 ---- I2C RX ---- P2 SCL TX ---- P3 SDA
Then I tried moving all the jumpers across, like this:
UART P1 ---- I2C RX P2 ---- SCL TX P3 ---- SDA
again it doesn’t seem to show up as an i2c device.
Has anyone actually used the 1.1 board with i2c, and can you tell me what jumper configuration you used. I don’t think my board is broken, because it worked fine on the normal serial connection.