Software - ASCOM Focuser Driver/Focuser Firmware



Firmware and ASCOM driver have been updated... Two focuser firmwares now exist, one for DC motors (OnFocusDC) and one for steppers (OnFocus.) They both use very similar commands and one ASCOM driver works with both. More detail on the hardware is here.

The new ASCOM driver (Version 1.1.4) is available to download here. The latest firmware is available to download from GitHub.

The ASCOM focuser dialog:


Commands across the serial interface are as follows (this command set was designed based on the ASCOM focuser interface documentation):

Move In :MIn# Reply:[none]
Move Out :MOn# Reply:[none]
Move to Absolute position [OnFocus only]:MAn# Reply:[none]

Info. status M=moving, S=stopped:IS# Reply:M# or S#
Info. Product :IP# Reply:On-Focus#
Info. Number (version) :IN# Reply:1.0a1#

Get full In position :GI# Reply:n#
Get Max out position :GM# Reply:n#
Get Position :GP# Reply:n#
Get power level % [OnFocusDC only]:GL# Reply:n#
Get Scale (microns per step/ms):GS# Reply:n.n#

Set current position Zero :SZ# Reply:[none]
Set Half travel position [OnFocus only]:SH# Reply:[none]
Set full In position n [OnFocusDC only]:SIn# Reply:[none]
Set Max out position n :SMn# Reply:[none]
Set power level xxx % [OnFocusDC only]:SLn# Reply:[none]
Set PWM frequency 31khz(1), 3.9khz(2), 488hz(3), 122hz(4), 30hz(5) [OnFocusDC only] :SFn# Reply:[none]
Here are the older versions of the ASCOM driver and firmware.




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