{single}{actor}{/single}{multiple}{actors}{/multiple} replied to the...

The new update makes the Serial write error go away. The filter wheel version number is also correct.

I still see the WF command being sent every second in the debug logs:

INFO	227.063863 sec	: Pegasus INDIGO is online.
DEBUG	227.064552 sec	: CMD <WV>
DEBUG	227.079659 sec	: RES <WV:1.2>
DEBUG	228.064635 sec	: CMD <WF>
DEBUG	229.065935 sec	: CMD <WF>
DEBUG	230.067225 sec	: CMD <WF>
INFO	230.300844 sec	: Setting current filter to slot 2
DEBUG	230.300985 sec	: CMD <WM:2>
DEBUG	230.327024 sec	: RES <WM:2>
DEBUG	231.068405 sec	: CMD <WF>
DEBUG	232.070111 sec	: CMD <WF>
INFO	232.959201 sec	: Setting current filter to slot 1
DEBUG	232.959480 sec	: CMD <WM:1>
DEBUG	232.982931 sec	: RES <WM:1>
DEBUG	233.070819 sec	: CMD <WF>
DEBUG	234.072282 sec	: CMD <WF>
DEBUG	235.073851 sec	: CMD <WF>
DEBUG	236.075557 sec	: CMD <WF>
DEBUG	237.076402 sec	: CMD <WF>
DEBUG	238.077982 sec	: CMD <WF>
DEBUG	239.079320 sec	: CMD <WF>
INFO	239.687003 sec	: Pegasus INDIGO is offline.

As best I can tell, the driver never hits SelectFilterDone() at line 143.

(gdb) break /home/stellarmate/Projects/indi/drivers/filter_wheel/pegasus_indigo.cpp:143
Breakpoint 1 at 0x557de09e20: file /home/stellarmate/Projects/indi/drivers/filter_wheel/pegasus_indigo.cpp, line 143.
(gdb) c
Continuing.

The following diff seems to fix the issue:

diff --git a/drivers/filter_wheel/pegasus_indigo.cpp b/drivers/filter_wheel/pegasus_indigo.cpp
index b184decad..972052857 100644
--- a/drivers/filter_wheel/pegasus_indigo.cpp
+++ b/drivers/filter_wheel/pegasus_indigo.cpp
@@ -134,7 +134,7 @@ void PegasusINDIGO::TimerHit()
     if (isConnected() && FilterSlotNP.s == IPS_BUSY)
     {
         char response[DRIVER_LEN] = {0};
-        if (sendCommand("WF"))
+        if (sendCommand("WF", response))
         {
             int position = -1;
             if (sscanf(response, "WF:%d", &position) == 1)

With that in place, I see the following in the logs:

INFO	181.999770 sec	: Pegasus INDIGO is online.
DEBUG	182.000172 sec	: CMD <WV>
DEBUG	182.015682 sec	: RES <WV:1.2>
INFO	185.342267 sec	: Setting current filter to slot 1
DEBUG	185.342539 sec	: CMD <WM:1>
DEBUG	185.375298 sec	: RES <WM:1>
DEBUG	186.002934 sec	: CMD <WF>
DEBUG	186.015014 sec	: RES <WF:-1>
DEBUG	187.016328 sec	: CMD <WF>
DEBUG	187.038995 sec	: RES <WF:-1>
DEBUG	188.040434 sec	: CMD <WF>
DEBUG	188.062985 sec	: RES <WF:-1>
DEBUG	189.064485 sec	: CMD <WF>
DEBUG	189.086792 sec	: RES <WF:1>
INFO	194.713997 sec	: Setting current filter to slot 7
DEBUG	194.714204 sec	: CMD <WM:7>
DEBUG	194.750045 sec	: RES <WM:7>
DEBUG	195.093203 sec	: CMD <WF>
DEBUG	195.117954 sec	: RES <WF:-1>
DEBUG	196.119440 sec	: CMD <WF>
DEBUG	196.141981 sec	: RES <WF:-1>
DEBUG	197.143499 sec	: CMD <WF>
DEBUG	197.165692 sec	: RES <WF:-1>
DEBUG	198.166977 sec	: CMD <WF>
DEBUG	198.189555 sec	: RES <WF:-1>
DEBUG	199.190985 sec	: CMD <WF>
DEBUG	199.213615 sec	: RES <WF:-1>
DEBUG	200.215133 sec	: CMD <WF>
DEBUG	200.237485 sec	: RES <WF:7>
INFO	206.282713 sec	: Setting current filter to slot 1
DEBUG	206.282891 sec	: CMD <WM:1>
DEBUG	206.316700 sec	: RES <WM:1>
DEBUG	207.245849 sec	: CMD <WF>
DEBUG	207.260594 sec	: RES <WF:-1>
DEBUG	208.261946 sec	: CMD <WF>
DEBUG	208.284591 sec	: RES <WF:-1>
DEBUG	209.285932 sec	: CMD <WF>
DEBUG	209.308229 sec	: RES <WF:-1>
DEBUG	210.309508 sec	: CMD <WF>
DEBUG	210.332186 sec	: RES <WF:-1>
DEBUG	211.333015 sec	: CMD <WF>
DEBUG	211.356101 sec	: RES <WF:-1>
DEBUG	212.357608 sec	: CMD <WF>
DEBUG	212.379995 sec	: RES <WF:1>
INFO	215.036573 sec	: Pegasus INDIGO is offline.