Adding default baudrate for mount

[wtgee]

No description provided.

[codecov]

Codecov Report

Merging #403 into develop will decrease coverage by 0.1%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #403      +/-   ##
===========================================
- Coverage    69.14%   69.03%   -0.11%     
===========================================
  Files           60       60              
  Lines         4757     4757              
  Branches       656      656              
===========================================
- Hits          3289     3284       -5     
- Misses        1294     1298       +4     
- Partials       174      175       +1

Impacted Files	Coverage Δ
...tests/serial_handlers/protocol_arduinosimulator.py	69.53% <0%> (-1.57%)	⬇️
pocs/observatory.py	83.23% <0%> (-0.29%)	⬇️

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