Inteface gadget for Thetis?

[Jerry Kaidor]

Hello!

    Really enjoying my HL2.  Its noise rejection especially kicks butt compared to everything else in the shack.  And I'm getting excellent reports.   I'm running Thetis on my big desktop machine - Xeon processor, 32G of ECC ram, two 32-inch 4K monitors.  The HL2 is patched into my homebrew LDMOS linear, and I'm seeing about 550W out.  The linear is actually capable of much more than that;  but I'll need more power into it - or I'll need to modify it

with a smaller input attenuation. 

  In the meantime, a couple of small annoyances;  I really would like to tune with a knob.

I was thinking a rotary encoder hooked to a microcontroller with USB.  Also, a PTT switch.

That's probably more important than the knob.  I sit here reading email or taking notes.  Net

control hands it to me.  I hit the space bar...and nothing.  Thetis ignores it unless that window has focus.  Has anybody done something like this?  The microcontroller code would be trivial, but I don't know how to make Thetis take notice.  That's probably more of a Thetis question than a HL2 question.  I have read somewhere about people doing such things with piHPSDR using the raspberry Pi's I/O ports.

I'm using a big fancy studio microphone.  The desk stand has a heavy castiron base.  Bet

I could mount a PTT switch on that base...

                   - Jerry, KF67VB

[Josh Logan]

Lots of options, here is one example:

https://github.com/ji1udd/VFO-Controller?tab=readme-ov-file

The main thing is to see what inputs your software will support, and then build up controls that match.

I use a https://contourdesign.com/products/shuttle-xpress as my VFO and software to send midi commands, plus a footswitch I put in a rp2040 to send MIDI commands for PTT.

I would also look at:
https://ctr2.lynovation.com/product/ctr2-midi/

73, KD7HGL

Josh

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[Pierre Martel]

You can use any Midi connected device as a way to control thetis. And no need to have the window in focus. This for PTT or tuning or what ever you want.

You can make a usb/midi controler with the control you want with an Arduino that act as a midi controler.  So as much switch or slider or rotary encoder you want. 

[Ron Lewkowicz]

Yes, MIDI control is the answer.  I'm NCS on a net with my HL2 and I have a Numark DJ2GO2 touch controller to operate deskHPSDR or piHPSDR on a Linux desktop. Works great and I can keep the logging and back channel chat in focus.  I find if you bounce between the SDR software and logging or chat window it's best to disable all keyboard controls otherwise you'll inevitably hit something when you shouldn't.

[Ed Grafton]

The Teensie 4.1 microcontroller has MIDI out native to the board. 

Ed

[ron.ni...@gmail.com]

I use the Lynovation CTR2 MIDI controller knob with my macOS/iOS/iPhone SDR app for the HL2.  Built it as a kit.  Works great. Compact for HL2 portable ops.  Many other SDR apps also support this MIDI controller. 73, Ron, N6YWU

[GM8JCF]

"I hit the space bar...and nothing.  Thetis ignores it unless that window has focus.  Has anybody done something like this? "

Hi Jerry

I use a Lynovation CTR2-MIDI controller for tuning and function control, and this PTT "defect" used to drive me potty until I discovered AutoHotKey.

For PTT,  AutoHotKey - https://www.autohotkey.com - is your friend, and then a script like the one I wrote, ie

#NoEnv
#Warn
#SingleInstance, Force
SendMode, Input
SetBatchLines, -1
SetWorkingDir, %A_ScriptDir%

msgbox ,,, "ThetisPTT script by GM8JCF running, `nPress Number Pad - key to toggle PTT"

;Thetis PTT using Number Keypad Enter key
NumpadSub::

;Mute Audio Output - this is useful when using a WebSDR to receive
Send {volume_Mute}

SetTitleMatchMode, 1

;Select the Thetis Window with the MOX button control on it
WinActivate , Thetis, MOX, ,

;Send PTT toggle to Thetis
ControlSend,, {space}, Thetis,,,

return

This Autohotkey script completely overcomes the "not focussed" on Thetis main window problem. U can also "compile" the .AHK script into a .EXE if U really want to.

Hope this helps

Peter - GM8JCF

https://www.qrz.com/db/GM8JCF

https://www.g8jcf.uk/

[Ray Parry]

I've swapped out my HL2 now for an Anan but still use Thetis. I can't remember if the Thetis version I used for HL2 had a midi tab on it. If it does then try a hercules mixing console which uses midi commands. You will then be able to  map all the popular functions to the knobs and sliders of the hercules.

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