BLE Nano kit v2 I2C with IDE Arduino


#1

Hello
I have bought a BLE Nano 2 kit with DAPLink board and I test it since some days with the Arduino IDE.

I have tried the “BLE_Examples/SimpleChat” example, it works very well with the “nRF Connect” application. GPIO input / ouput run very well also.

Now I try to use I2C to drive a BME280 sensor. I have not able to have correct SDA and SCL signals on the DAPLink.
I have tried also the BLE Nano 2 without DAPLink, on a breadboard supplied directly with 3.3V, I have the same problem. I2C do not run.
I also try the “TWI/AT24C512_Demo” example without success. The SCL signal is always high, SDA is always low.

Some person on this forum have problem with I2C, other person NO. Is there a particular configuration to have I2C running with IDE Arduino?

People who had I2C problems how did they solve them?

Thanks for yor help.
Best regards.
Christian


#2

Hello
You should confirm that SCL and SDA whether have pull-up resistor or not.And The TWI/AT24C512 sketch is verified which you can refer to.