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How to disable WiFi and BlueTooth on CC6UL SBC Pro

Q: Is there a hardware mechanism to disable WIFI & Bluetooth on my CC6UL SBC Pro?
A: No there is no direct hardware mechanism, but firmware can disable power to the chip:

On a Linux shell to disable WiFi and BlueTooth, as user root enter:

root@ccimx6ulsbc:~# ifconfig wlan0 down
root@ccimx6ulsbc:~# ifconfig wlan1 down
root@ccimx6ulsbc:~# /etc/init.d/bluetooth-init stop
root@ccimx6ulsbc:~# rmmod wlan

To get it back active, enter:

root@ccimx6ulsbc:~# modprobe wlan
root@ccimx6ulsbc:~# /etc/init.d/bluetooth-init start
root@ccimx6ulsbc:~# ifconfig wlan0 up
root@ccimx6ulsbc:~# ifconfig wlan1 up

wlan1 commands are only necessary if you have wlan1 in your system.

This will remove power to the wireless chip effectively disabling it. No RF signal (intentional) is present on the CC6UL SBC Pro module antenna connector when disabling the Bluetooth and the wireless interfaces as above.
Last updated: Sep 24, 2020

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