sudo add-apt-repository ppa:mutlaqja/ppa
sudo apt-get update
sudo apt-get install libindi1
The OptecInc Intelligent Filter Wheel (IFW) is a system able to manage a lot of filters within different wheels:
The purpose of usage is to have more than one wheel of the same model but with different filters on these. For example the IFW can recognize 5 different wheels of 2” filters to a total of 25 filters. This driver is able to manage IFW and IFW-3. The different wheels for each model are identified by one letter from A to E.
The identification is done via reed sensors and small magnets placed on the wheels. These magnets provide the wheel’s ID and filters position. The name of the active filter is display on a small 8 digits display on the interface box of the IFW.
By default, the names are a concatenation of the WheelID and the filter number. (A1, A2..A9, B1..E9). These names can be changed by the user throught the serial connection.
More information in this document from Optec.
When connected three tabs are available:
Once connected the driver initialize the IFW. It tooks about 10 second (Even in Simulation !) The IFW move the wheel to find the first filter position and get the identification of the wheel in the unit. You get a new button to send manually the HOME command to the IFW too.
When the IFW is ready you get the Home state green otherwise it turns red (ALERT) and a message ask to check the IFW and press on Home button to try again.
This tab provide information related to the wheel in place in the IFW and the filters names for this wheel.
If All is selected, then any char could be written in the EEPROM. That could provide strange results on IFW box controller, but it would be displayed correctly via the PC interface, then by INDI and Ekos.
Filter n°1..n°5(..n°9) show filters names and could be changed and stored in the EEPROM of the IFW box controller when click on “Set” button. When Simulator is active, some other swithes are visible to change the wheel format. We could select the default one with 5 filters or the 6, 8 and 9 ones.
The INDI Optec IFW driver provides complete functionality for all majors features supported by the wheel unit.
These instructions cover the use of IFW unit.
By sending a Home command when connected, the diver initializes the unit. It tries to get the firmware version of the IFW, identify the wheel ID and load from EEPROM the filters names. If an error occur the driver shows the error code and a short explanation. In this case you have to :
When the wheel is not moving, Open the cover of the unit, release the axis of the wheel, Take the other wheel in place, tight the axis back and close the cover.
Click on the Home button at the Main tab to identified the wheel in place and load the filters names from EEPROM.
With the INDI driver we could change the filters names and store them in the IFW’s EEPROM.
To backup your actual configuration goes to the Options tab and click on Save button.
The configuration you have saved could be recall by different ways. One is to click on load’ button, other one is to configure on EKOS the ‘Load Device Configuration’ to ‘On connection’. With this selection the configuration is self-loaded when we initiate the connection to the unit from EKOS.To configure goes to KStars, Settings menu then Configure Kstars...
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