1. The buzzer makes four warning sound after powered ON.
Reason: The robot makes the sounds indicating that data cannot be obtained from the camera.
Troubleshooting:
a. The camera does not contact well with the extension board.
Please remove and reconnect the camera to try again.
b. The FPC cable does not contact well with the extension board.
Please remove and reconnect the cable.
c. The FPC cable does not contact well with the extension board.
Please remove and reconnect the cable.
d. The camera may be damaged. Please try to connect the camera to esp32 directly to test.
If the issue remains, then the camera module is damaged.
Please send us an email (support@freenove.com) to solve the issue.