We currently have an older Sena SD1000 bluetooth module in an embedded system that functions as a UART wireline replacement. We just connect it to a UART on the embedded controller and once we've paired it, we just write to the UART and the data shows up on the paired device. No programming of the SD1000 is required. We would like to replace this module with a smaller, lower power BLE module that doesn't require a UART.. Is there a similar Nordic module that would provide the same functionality using an I2C interface instead of the UART?
