TeensyMaestro

KD0RC

TeensyMaestro V1.043 is now available on GitHub:

https://github.com/KD0RC/Teensy-Maestro-for-Flex-6000-radios/releases/tag/V1.043

*****************************V 1.043 * ***************************
  Implemented a better fix for paddle bounce.
  Added ability to add a fixed number of dit-lengths to word spacing.
  Added NFM to list of modes in the out of band function.

Lasse, SM5GLC and Dave, W4WKU continued to have problems with their paddles "locking up" (i.e. TeensyMaestro missing a paddle closure). My original paddle bounce fix was a brute force delay and not a good solution. I re-thought the problem and now think that I have it resolved. Dave and Lasse did quite a bit of testing and have not had the problem with this new version. It has been hard for me to test as I don't have the issue with my paddles (Begali Simplex).

My paddles do have contact bounce however, but the initial closure just happens to fit into the read timing for the input pin in a way that keeps me from seeing the issue. The fix implements a read loop that waits for a LOW condition on the pin before moving on. Now, if your contacts unluckily bounce open just before the read, another read comes along microseconds later to catch the next closure. With this new code, my paddles give me the minimum wait time of 5 us from closure to keying transistor output. A bad bounce might take 10 us or more to find a closure, but I doubt it will be more than 30. I allow for up to 100 us before the program gives up and moves on. What a learning experience...

Dave suggested allowing a little wider word spacing on the CW memories, so I added a parameter to the MMConfig.ini file to allow 0 - 100 additional dit-lengths to be added to the default 7 dit-length word spacing. Dave had it at 3 and is thinking of moving it back to 2. This is not really farnsworth spacing, but is similar in concept and allows for a pretty fine level of control. This spacing does not affect any keying, other than the Teensy memories.

ct1drb

Hello all,

my best HNY 2024 with plenty of health as well.

Today I got new Flexradio firmware, installed it and aparently everything well here, however, with the TeensyMaestro when I change the CW speed the panadaptor of the SmartSDR freezes for a while depending amount of speed I want to change, for instance if I am with 30 wpm and change to 29 wpm the freeze is short, if difference is bigger the freeze is bigger too.

Changing cw speed at the Radio Controls works well and no freezing.

Best 73 all.

CT1DRB/OK8RB

David Quental

KD0RC

Hi David, I will take a look at that when I get home from skiing this afternoon.

Are you using V 1.043 of the TeensyMaestro?

ct1drb

Hi Len,

hmm that's cool, skiing.

Ok, I am, V 1.043 here.

Best 73 and enjoy Len.

CT1DRB/OK8RB

David Quental

Lasse SM5GLC

Len, while you are debugging...

It seems my TeensyMaestro always starts with 500 Hz step size... Why not use the value that SSDR have? And that goes for Audio too.... it always sets to 20 despite the value SSDR have (this is true for AGC-T too). Not sure if this is coz I'm still at 2.4.10??

/Lasse

KD0RC

Hi Lasse, you can control step size with the MMConfig.ini file:

; CW/SSB Step index  0 1  2  3   4   5    6    7    8
; CW/SSB Step        1 10 50 100 500 1000 2000 3000 5000
VFO A SSB Default Step: 3
VFO B SSB Default Step: 3
VFO A CW Default Step: 1
VFO B CW Default Step: 1

In this example my default is 100 Hz for SSB and 10 Hz for CW.

I will have to look at the default audio and AGC-T values when I get home. Lifts are getting ready to open, so off I go!

KD0RC

From ct1drb:

Today I got new Flexradio firmware, installed it and aparently everything well here, however, with the TeensyMaestro when I change the CW speed the panadaptor of the SmartSDR freezes for a while depending amount of speed I want to change, for instance if I am with 30 wpm and change to 29 wpm the freeze is short, if difference is bigger the freeze is bigger too.

Hi David, I am back and playing with the CW speed control and I cannot reproduce the issue. I get virtually instant updates of CW speed when I turn the TeensyMaestro control. I get no panadapter slow downs or freezes. It works fine whether I turn on or off CWX Sync. I can turn the speed encoder as fast as I want without issues.

After you upgraded to 3.6.8, did you do a cold boot of the radio? (turn off radio, wait 2 minutes, remove power at the connector, wait 2 minutes, re-apply power, start radio)

If that is not it, what does your network status look like? Click on the little network status icon:

If it is good or excellent, I wonder if the number of encoder steps is set correctly for your encoders.

Vol A encoder steps: 4 ; number of encoder steps per detent click followed by N for normal or R for reverse
Vol B encoder steps: 4
AGC A encoder steps: 4
AGC B encoder steps: 4
Low A encoder steps: 4
Low B encoder steps: 4
High A encoder steps: 4
High B encoder steps: 4
CW encoder steps: 4

Mine are 1:1 encoders (1 click = 1 value change) from Leo Bodnar, but most use the cheaper 4:1 (1 click = 4 value changes). The 4:1 encoder detent positions are always in a state where all switch contacts are open. In some designs, this is important. For the TeensyMaestro, it really doesn't matter.

Is anyone else having this issue?

Lasse SM5GLC

Len,

I had my settings set by stupididty.... no problems with steps.

Using the CW speed a lot and do not see any issues, but as I said, I'm on old SSDR 2.4.10

73

Lasse SM5GLC

KD0RC

Hi Lasse, I only set the volume to 20 and AGC-T to 33 if there is no GUI client (SmartSDR or a Maestro) to bind to. So if you bring up the TeensyMaestro before starting SmartSDR or a real Maestro, it plugs in audio and AGC-T values to prevent a blast of noise from the speakers.

If you start a GUI client first, then start the TeensyMaestro, it will use the GUI client values.

If this is not what you are seeing, let me know and I will look into it further.

Lasse SM5GLC

Len,

my guess is that this is because I am running the old SSDR. I usually bring up Teensy last, or I have SSDR to complain that there are another user, and I have to disconnect.

No biggie, lets hope the new 2.X.Y will be here soon and have all fixes I need :) Still awaiting user reports on the new 3.6, esepecially regarding the CW issues.

73

Lasse SM5GLC

KD0RC

Hi Lasse, So far, 3.6.8 is excellent. I can confirm that the guaranteed way to break CW in the older versions is well and truly fixed in 3.6.8. I haven't heard of, nor have I seen any additional CW anomalies, so I feel pretty good about how it is working now. Also, the issues with split operation and VOX operation are fixed. I had more problems with split than I had with CW, but they both look very solid right now. I will try VOX in the next couple of days, but my initial testing looked very good.

Now that you mention 2.4.10, I think that there was a change in the API after that regarding audio level, so you may be correct. Once Flex releases the new version 2 software, I will be interested to see if the TeensyMaestro behaves better for you.

Lasse SM5GLC

Hi Len,

yes there were some big changes 2.4->2.51 but that also brought the problems with CW. I was told by Flex support to stick with the old version..... Been a while now :)

Now off to bed.

73

Lasse SM5GLC

KF5DEY

Lasse SM4GLC,

I just got my boards and am going through the list of components...

What is..

L1,L2 L-Ferrite L_Wuerth_WE-TPC

I know it is some kind of SMD ferrite inductor...but I have no idea the value, or the physical size...I think on the pads it is quite a large inductor.

Also I assume the D1 diode doesn't need any specifics...just has to fit the SOT-23 size?

Mike

KF5DEY

Lasse SM5GLC

Mike,

All those components are optional!

The diode is just polarity protection, and the inductors would prevent RF in/out from the circuits. And if you intend to power the Teensy directly from the USB cable, you can leave all stuff from J25 Power-in to the POWER jumper J27.

One important note: *NEVER* attach external power to J25 and leave the USB-cable attached, feeding the Teensy from two sources will destroy stuff and let the magic smoke out!

Good Luck with the build

/Lasse SM5GLC

KD0RC

Hi Mike, if you elect to power your TeensyMaestro using Lasse's power circuit, you will want to cut the VIN to VUSB trace on the Teensy board.

From the PJRC website:

There are a pair of rectangular pads on the underside next to the 5 V pin. They are connected by a small (really tiny) trace. If you cut that trace, you can safely power the circuit from Lasse's circuit while simultaneously connecting to your PC's USB port. When cutting the trace, be very careful - this is a 4 layer board with another trace directly below the one to be cut. On another project, I cut the trace with more of a scraping motion of a knifepoint to reduce the chances of cutting too deep.

The way I power my TeensyMaestro is via the USB port (no trace cutting). I bought a USB panel-mount extension from Adafruit that works great to get a secure USB connection to the back of the case.

Best of luck with your TeensyMaestro!

KF5DEY

Thanks, yea, I might as well just power the teensy direct.

I have let too much magic smoke out of teensys already...