8.14.5 BT_POWER_DOWN
The following command is used to chip down the power when the BT is not in use.
$ echo BT_POWER_DOWN > /dev/wilc_bt
The chip cannot be powered-down using the BT_POWER_DOWN command, if Wi-Fi is active. However, using BT_POWER_UP and BT_POWER_DOWN in the correct sequence the user can power on and off the chip successfully.