AstroEQ Github Repo

Revision History/Updates

7.4. Configuration Utility Updates

  • Minor update to the firmware to allow new changes in configuration utility.
  • The configuration utility now allows more configurations that previously resulted in an IVal too small error
    • Be aware that a small IVal while increasing resolution means that fewer accurate speeds can be achieved
    • The IVal is tuned to get the most accurate sidereal speed possible, but higher speeds will suffer
  • Added a 'Test Configuration' option. This allows configurations to be tested without hardware
    • Basically it jumps to the config screen to allow entry of values without the need for hardware

7.3. Major Changes For AstroEQ7

  • AstroEQ now allows for 6 different step modes to be selected.
  • EEPROM configuration has been merged into the main firmware, meaning the firmware doesn't have to be re-uploaded twice each time the configuration is to be changed.
  • Minor bug that axis stop if requested speed is too high has been fixed.
  • Configuration Utility has been revamped to make configuration easier - including the ability to save and recall previous configurations.
  • Configuration Utility on Linux no longer requires to be run from a Terminal. It can no be run as any standard application.
  • Legacy Hardware designs have been brought up to date and are no longer considered legacy. If you are using an Arduino Mega, please refer to the updated file here: here.

7.2. Testing Version Not Publically Released

7.1. Testing Version Not Publically Released

7.0. Pre-Release of AstroEQ7

  • AstroEQ now uses 1/4 and 1/32 step mode for improved accuracy.
  • Change only affects DRV8825 Driver Boards.
  • If you have legacy hardware, please see here.

6.8. Optimisation of Comms

  • More optimised code for Serial Communications.
  • Reduces command response time for more reliable Guiding.

6.7. Acceleration delay reduced at low speed

  • For speed < 2X Sidereal, the mount will start directly at that speed
  • Reduced starting time of mount
  • Support for PHD Guiding through EQMOD completed.

6.6. Testing Version Not Publically Released (PHD Support Added)

6.5. Completely Rewritten Ac/Deceleration Routines

  • New & improved acceleration and deceleration routines
  • Correct Behaviour when reversing direction - slow to a stop, then accelerate.
  • Much more linear profile.

6.4. Testing Version Not Publically Released

6.3. Deceleration Routines Bugfix

  • Fixes a glitch which causes the mount to not decelerate under EQMOD Rate Limiting

6.2. Added ability to change Goto Speed

  • The Goto Speed used for each axis can be set using the Configuration Utility
  • Set as a user defined multiple of the sidereal rate.

6.1. Added ST4 Support

  • Software now supports ST4
  • Refer to the file in the Downloads folder for how to add a guide port.

6.0. Major Software Rewrite

  • Completely rewritten motor control routines
  • Changed the way values are calculated for increased accuracy
  • Added configuration utility to make calculations easier - no more need for Excel.

5.2. Software Patch + Alternative hardware possibility

  • Added the ability for the speed at which goto's move the mount has been added
  • Added support for using the Pololu A4983 Breakout Board, rather than the DRV8824 for ease of DIY.

5.1. Software Patch

  • Added support for mounts which have a different gear ratio on each axis.

5.0. Redesign of Hardware and software

  • Improved tracking rate calculation to account for rounding errors
  • Using hardware to send steps to drivers, which reduces unwanted delays (improves accuracy of step rate)
  • Added a High Torque mode, which allows for increased torque at high speeds by silently switching to half stepping.

pre5.0. No Revisision history from older versions.