New scan flags mismatch

[SamihQabaha]

who can help fixing the following error: "New scan flags mismatch"

the logs are

request: b'\xa5P' descriptor: b'\xa5Z\x14\x00\x00\x00\x04' response: b'\x06\x05\x01\x01\x02\x00\x01\x08\x01\x00\x02\x00\x00\x00\x00\x00\x04\x00\x01\t' {'model': 6, 'firmware': (1, 5), 'hardware': 1, 'serialnumber': '02000108010002000000000004000109'} request: b'\xa5R' descriptor: b'\xa5Z\x03\x00\x00\x00\x06' response: b'\x00\x00\x00' ('Good', 0) request: b'\xa5R' descriptor: b'\xa5Z\x03\x00\x00\x00\x06' response: b'\x00\x00\x00' request: b'\xa5 ' descriptor: b'\xa5Z\x05\x00\x00@\x81' response: b'\xaaU\x01\x01\x03' response: b'B\x03B\xabT' response: b'\x00\x00\xaaU\x00' Traceback (most recent call last): File "C:\Python\test_radar.py", line 17, in for i, scan in enumerate(lidar.iter_scans(max_buf_meas=500, min_len=5)): File "C:\Python\lib\site-packages\rplidar.py", line 365, in iter_scans for new_scan, quality, angle, distance in iterator: File "C:\Python\lib\site-packages\rplidar.py", line 341, in iter_measurments yield _process_scan(raw) File "C:\Python\lib\site-packages\rplidar.py", line 77, in _process_scan raise RPLidarException('New scan flags mismatch') rplidar.RPLidarException: New scan flags mismatch

[hhelmric]

I'm having the same issue. I'm currently trying to rotate the rplidar with a servo to create a 3D point cloud and want to grab data from a scan for every angle of the servo's rotation. After I call next(scans) more than 106-108 times, I receive either this error or the "Check bit not equal to 1" error.

[elulaelia]

I experience the same issue. @hhelmric did you discover any viable solution?

[hhelmric]

Not sure... this was a while ago and I honestly can't remember. We stopped experimenting with the RPLiDAR over a year ago

[m3pan]

Did anyone find a solution?

[pascalpradel]

I found out that the error occurs when there is a time.sleep() inside the loop using the scanner function. After I deleted time.sleep() everything worked fine.