Output Issue

Some of the outputs are in this form: ['.28', '0.00\r\n']
Thus, python code is not properly working:
```
Traceback (most recent call last):
  File "main.py", line 149, in <module>
    if __name__ == '__main__': main()
  File "main.py", line 140, in main
    read_data()
  File "main.py", line 118, in read_data
    az = float(angles[2])
ValueError: could not convert string to float:
```