I2C sensor

Hi, Dialog
我检查了peripherals demo project (..\DA1468x_SDK_BTLE_v_1.0.8.1050.1\projects\dk_apps\demos\peripherals_demo) and found that this is not a 'BLE' project - no RF trans/receive.
I know that the peripheral device with I2C or UART or SPI will cost more power, but usually you need to add a sensor with analog/digital interface.
Is there a good sample for that? in BLE mode and have the external sensor ? and the programming manual?