Hello. I finally succeeded mouse keyboard combo. I use mouse sensor with SPI. I send mouse_move_data in loop. However, when I connect with the computer, the mouse pointer moves irregularly. A delay occurs in the 'sd_app_evt_wait' when used to 'power manage()'. When i erase 'power manage()', execute all the moves the mouse functions but differ in the cycle of sending data and receiving data. How to i solve ? I use 's110_nrf51822_7.1.0_softdevice'. Thank you in advance.