8.4  Serial Line Protocol 

The Gemini system supports a subset of the Meade  LX200 Command Set, with some 

extensions added. From Level 2 up, nearly all Gemini parameters and settings can be 

downloaded or uploaded using the native command set described at the end of the page.  

Syntax: values in <> are (to be) replaced by actual values. Curled brackets {} show 

alternative characters.  

Upon completion, ASCII characters or strings are returned, if indicated.  

Command

Returns

Remarks

Usable for testing the serial link and 

determining the type of mount 

(German equatorial).  

During Startup, with a "b#" being 

returned, the PC can select the startup 

G# after completed 

mode by sending a  

startup or 

0x06 (ACK char) 

b# while waiting for 

bC# for selecting the Cold 

the selection of the 

Start,  

Startup Mode. 

bW# for selecting the Warm 

Start and  

bR# for selecting the Warm 

Restart. 

Synchronize

The string "No object!#" is returned 

if the mount is not aligned or no 

object was selected, otherwise the 

name of the selected object used is 

No object!#  or  

:Cm# 

returned.