bt_port tx rx changed

button fix, drv8836 exposed pad fix

Merge pull request #9 from tardani95/pcb_board_routing Pcb board routing alpha v1_0

Merge remote-tracking branch 'origin/master' into pcb_board_routing

cubeMX pinout updated

pcb routing alpha v1_0

pcb route 4th phase

Merge pull request #8 from tardani95/pcb_board_routing Pcb board routing - master brought up to date

Merge remote-tracking branch 'origin/master' into pcb_board_routing

lib updated