SebastianG

Nevermind, I just bought two of those FTDI controllers and cut an old ST4 cable in half and used a man-in-the-middle to obtain the protocol: :MRSVE# => GET mount info :RMRVE12170518# 170518 -> firmware version, 12 SGP? :MGGR => GET guiding rate :HRGR5550# (0.55) :MSGR5050# => SET guiding rate :HRGR5050# :MSTR3# => SET tracking rate (3, sidereal) :HRAS013900105# :MSMR2# => SET tracking rate (2, 1/2 sid) :HRAS023900105# :MSMR1# => SET tracking rate (1, lunar) :HRAS011900105# :MSMR0# => SET tracking rate (0, solar) :HRAS010900105# :MSMR1# => SET move RA? 1, (slew right) :HRAS013900105# :MSMR2# => SET move RA? 2, (slew left) :HRAS023900105# :MSMR0# => SET move RA? 0, i.e. track :HRAS013900105# :MSMS1# set speed 1x :HRMS0# :MSMS2# set speed 2x :HRMS0# :MSMS3# set speed 8x :HRMS0# :MSMS4# set speed 16x :HRMS0# :MSMS5# set speed 64x :HRMS0# :MSMS6# set speed 128x :HRMS0# :MSMS7# set speed MAX :HRMS0# :MSELx# set light intensity x (0..9) :HREL3# :MSHE0# set hemisphere 0 (south)? :HRHE0# Pinout like this:

Hi BoulderLou, I've been looking for this info ever since I got that HBX for my SkyGuider Pro and noticed that it doesn't communicate with the iOptron commander. I'd be super interested in that command set, as I reckon this would allow the SGP to slew back if it crosses the meridian, computer controlled, something that right now requires setting an alarm in the middle of the night 😕 TIA Seb