Create Changelog.md

Author: ClutchplateDude

Software/Arduino code/Changelog.md

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+**V1.8.39 - Updates**
+- Fixed guiding to not jump back and forth on pulses.
+- Fixed tracking during slew. We now turn off tracking for slew and compensate at the end of the slew.
+- Fixed type for DEC motor speed.
+- Added M33 and Pleiades to GO menu.
+- Added lots of debug output around stepper motor control under new macro DEBUG_STEPPERS
+
+**V1.8.38 - Updates**
+- Fixed code to allow GPS use with Headless client.
+- Tidied up some LCD strings
+
+**V1.8.37 - Updates**
+- Fixed bug that prevented the parking position from being read from persistent storage.
+- Made sure Parking position was cleared  on EEPROM clear.
+
+**V1.8.36 - Updates**
+- Added GPS control to LX200 Meade protocol
+
+**V1.8.35 - Updates**
+- Added ability to define a parking position that is seperate from the Home position.
+
+**V1.8.34 - Updates**
+- Fixed a bunch of typos that massively screwed up DEC guiding
+
+**V1.8.33 - Updates**
+- Allowed axis inversion to be configured in local config
+- Added Digital Level support to Meade serial protcol
+- Fixed compilation problem with Digital Level
+
+**V1.8.32 - Updates**
+- Support for automatic local config selection based on selected board
+- Included sample local config file.
+
+**V1.8.31 - Updates**
+- Now supports local configuration settings (thanks, AndreStefanov!)
+- Major code re-structure, neccessary as the project grows.
+- Fixed a bug that turned off Tracking when you tried to slew RA to the current location
+- Moved some defines around
+- Improved some comments
+- Fixed a bug related to DEC guiding
+
+**V1.8.27 - Updates**
+- YABBFDTLOC (Yet Another Build Break FIx Due To Lack Of Coffee)
+- Update Polaris to latest RA value.
+
+**V1.8.26 - Updates**
+- Build break fix for GPS-enabled configurations
+
+**V1.8.25 - Updates**
+- Added special char for Tracking display on LCD
+- Renamed some conflicting defines (HALFSTEP et al to HALFSTEP_MODE)
+- Moved all Debug strings to Flash memory
+- Simplified EEPROM class (made it all static)
+- Added prompt when pressing SELECT in either Roll or Pitch display in CAL menu, whether to save the reference value
+- Fixed ESP32 compilation problem in freeMemory() implementation
+
+**V1.8.24 - Updates**
+- Allow EEPROM clearing via LCD buttons (press DOWN on boot)
+
+**V1.8.23 - Updates**
+- GPS location storage was broken. Fixed.
+
+**V1.8.19 - Updates**
+- Azimuth motor control during Polar Alignment was not implemented.
+- After confirming Polar Alignment, the display shows slewing activity and no longer switches to the INFO menu.
+- Pressing Right Button while slewing home after Polar Alignment now stops the slewing before changing menus.
+- Removed some logging
+
+**V1.8.16 - Updates**
+- Throttled the INFO display update frequency (it was updating every cycle before).
+- Added temperature display when using the Digital Level module
+- Made the axis swap for the Digital Level on by default since most people will use the STL in the repo for the holder.
+
+**V1.8.15 - Updates**
+- Fixed linker error in ESP32 build.
+
+**V1.8.14 - Updates**
+- Turned the power to the Azimuth and Altitude motors on and off as needed.
+- Enabled Altitude correction from LX200 commands
+- Prevented tracking from starting after parking for NEMA motors.
+
+**V1.8.13 - Updates**
+- Made the LEFT button leave the Roll and Pitch menus without storing the offset (like SELECT does).
+
+**V1.8.12 - Updates**
+- Temporary fix for compile error from 1.8.11
+- add different MS modes for DEC slewing/guiding
+- add UART "noisefeedback" to config
+- hardcoded guidemultipliers for 28BYJ-48 steppers
+- stop tracking during a slew with NEMAs to prevent inaccurate slews
+
+**V1.8.11 - Updates**
+- Added support for electronic levelling via MPU-6050 module (CAL menu) (thanks to Marcel Isler for initial code)
+- Disabled AzAlt stepper motors after leaving CAL menu
+- Moved an overlapping EEPROM storage space (brightness, not used)
+
+**V1.8.10 - Updates**
+- Permanent display of tracking state in top-right corner of display.
+- Shortened menu display
+- Full GPS module (GT-U7) support for LST and location
+- Separated HA menu into two files (one for GPS support, one for non-GPS)
+- Added display of current location to INFO menu
+
+**V1.8.06 - Updates**
+- DEC axis was inadvertently inverted by default after merge. Fixed.
+- Guide pulses were not 2x sidereal and 0 for default steppers. Fixed.
+
+**V1.8.05 - Updates**
+- Reverted Headless mode to off
+- Increased screen updates back to 5Hz.
+
+**V1.8.04 - Updates**
+ - Merged the developautopa branch
+ - Made AzAlt motors configurable.
+ - Added extensions to the Meade protocol (:MAZn.n# and :MALn.n#) to move the aziumth and altitude motors.
+ - Added Az and ALt motor status to :GX# command output
+ - Added GPS and AzAlt features to hardware info query (:XGM#)
+ - New CAL menu items to adjust Azimuth and Altitude in arcminutes.