ROSbot unable to detect wifi

I’m trying to upgrade a ROSbot 2 with an RPi 4 in order to use ROS2. I’ve flashed the RPi with the ROSbot2R image however the wifi connection does not seem to show.

Output of sudo iwlist wlan0 scan:
wlan0 Interface doesn’t support scanning

Output of nmcli dev wifi returns with nothing.

Any ideas or has anyone had success doing this upgrade process before?
Thanks.

Hello @jjm53,

If you replaced the board yourself and used RPi4, it is necessary to add a WiFi card because the WiFi module on RPi 4 is disabled by default in our image and the module will not work when closed in a metal box.

The ROSbot 2R is sold with a USB Wi-Fi card connected inside the robot, the antenna of which is connected to the rear panel of the ROSbot.

I hope this information will help you find a solution to your problem.

Thank you that’s very helpful. The external wifi card works.

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