/nordic/nordic-blog/b/blog/posts/workaround-needed-for-twi-driver-nrf_5f00_drv_5f00_twi-in-sdIn SDK v8.1 we added the TWI driver (nrf_drv_twi.c). Unfortunately the nrf_drv_config.h file wasn't updated correctly with the new driver. The symptom is the error with "TWI_COUNT is missing". Here is what should be added to nrf_drv_conf...en-USTelligent Community 13