CLEARPATH Turtlebot4 User Manual page 150

FAQ
Common issues with the Raspberry Pi 4B
1. Access point is not visible
If your Raspberry Pi is in AP mode, a Turtlebot4 WiFi network should become visible about 30
seconds after the robot has been powered on. If it does not, try the following.
Check that the Raspberry Pi is powered
The Raspberry Pi has a Power LED near the USB-C port. Make sure it is illuminated.
If the LED is not on, then the Raspberry Pi is not powered. Check the USB-C connection and
make sure the Create® 3 power adapter board is inserted fully.
Check for obstructions
If the Pi is on but you cannot see the access point, make sure that any wires in the robot are not
obstructing the WiFi module of the Raspberry Pi. This includes the ribbon cable connecting the
RPi to the UI PCBA on the TurtleBot 4, and the wires powering the fans on both models.
Raspberry Pi 4B WiFi module and antenna