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Open Panzer Help / Cannon fire and flash

« Last post by Tom on January 21, 2026, 06:40:19 PM »

On this tank I have the taigen recoil set up. It works but there is a
delay between gun flash and recoil. Not sure if that can be corrected? The other tank has servo recoil and timed perfect.

On this one I have on Motors: Mechanical Barrel

Trigger with cannon: checked.
Select Type : Mechanical recoil.

Delay between recoil and light/sound: set to 0.

I unchecked Trigger with cannon, but then no recoil (If unchecked, use function trigger) It's okay.. just wondering if any settings to coordinate it better?

 Functions: Cannon fire              Aux Channel 4- Pos   1 (of 3)
                 Aux Output -Flash    Aux Channel 4-  Pos  1 (of 3)

92

Open Source Sound Dev / Re: OPSC Lite

« Last post by Tom on January 17, 2026, 04:47:08 PM »

I love the original idea of the TCB sound card or something developed as it's equivalent as it has some great features that aren't available. Like track clank sounds that could scale in speed with movement etc. I'm not sure price is a huge an issue.. as to get the best quality people did buy the original Benedini and the TCB is now going for $ 175 but a great product? And of course if it is cloned and the price dropped..yes more people would buy

93

Open Source Sound Dev / Re: Open Source Sound using Teensy 3.2 and PJRC Audio Library

« Last post by Foxhood on January 17, 2026, 04:46:03 PM »

Unfortunately the OP Sound Card code is not directly portable to any other processor than the discontinued Teensy 3.x devices, which had very specific sound capabilities that made them unique, and which my project was developed around. To recreate the sound card on different hardware will require not only a new board but a complete rewrite of the firmware based on a completely different approach.

This is not something I'm going to undertake, but user Foxhood recently started a thread about his project which he calls OPSC Lite, which you should follow.

I would note that the code is like 98% compatible with the newer Teensy 4.x as though the main website doesn't indicate as such: the sound library has been ported over cleanly to the new processor, restoring all functionality except for the on-chip DAC as the T4 lacks one. Porting would mostly be a matter of a little bit of rewiring (SD from SPI to SDIO), adding a simple little I2S DAC (e.g. SGTL5000) to the board and a few relatively tiny tweaks to the code like swapping the Audio DAC output block with I2S Output and replacing the old SdFat fork with the regular version.

I investigated this possibility as part of my dive into potential solutions to the audio dilemma. Honestly would have gone for this approach if my experiments didn't show a very interesting possibility in a spiritual successor to Benedini's work with AVR. Still. I'm keeping this in mind as a back-up should my efforts fail to pan out. After all. We do need a solution

94

Open Source Sound Dev / Re: Open Source Sound using Teensy 3.2 and PJRC Audio Library

« Last post by califrag on January 17, 2026, 03:59:53 PM »

Yup I saw that thread and am following it intently, really looking forward to an affordable sound card option!

I saw there were some TBS mini on ali-express but a lot of the reviews say they can't be programmed (probably because they are clones), so I don't wanna go down that route...

I've also been looking at another open-source "audio and light" module (this one : https://github.com/TheDIYGuy999/Rc_Engine_Sound_ESP32) to see if it's somehow possible to integrate it with OP TCB.. Of course it would take a bit of work to the code but I don't see why it couldn't be possible to add in the serial communication triggers from OP TCB to trigger the various sounds.

It wouldn't be as easily configurable though as the sound files have to be encoded into the compile routine. It is a pretty cheap option though. I did a PCBWay run of 5 boards which cost around $60 and for the ESP32 and other parts maybe another $35 in components for the 5 units, which breaks down to around $20/unit. It does require quite a lot of soldering assembly for all the connectors though. There's also a "mini" version for semi trailers which seems like it would be a good option but I had already ordered the full-size version.

Anyway just exploring some potential alternatives to find the cheapest and\or easiest option (I think it's worth paying a little more if the components are more readily available and easier assembly)

95

Open Panzer Help / Re: FrSky X4R

« Last post by LukeZ on January 17, 2026, 01:20:14 PM »

The sound card unfortunately is a dead project as the hardware it was based on has been discontinued. User Foxhood has started a thread about an alternate version he is working on, so you might want to follow that one: OPSC Lite

96

Open Panzer Help / Re: FrSky X4R

« Last post by Tom on January 17, 2026, 12:40:32 PM »

Thanks Luke. Yes I haven't touched these tanks in several years but my WW2 history buff friend came by so I decided to fix up one that had no TCB set up. Are you guys still working on getting the Sound Card produced someday? Pretty cool the TCB was finally made after Hobby King stopped making them.

97

Open Source Sound Dev / Re: Open Source Sound using Teensy 3.2 and PJRC Audio Library

« Last post by LukeZ on January 17, 2026, 12:22:52 PM »

Unfortunately the OP Sound Card code is not directly portable to any other processor than the discontinued Teensy 3.x devices, which had very specific sound capabilities that made them unique, and which my project was developed around. To recreate the sound card on different hardware will require not only a new board but a complete rewrite of the firmware based on a completely different approach.

This is not something I'm going to undertake, but user Foxhood recently started a thread about his project which he calls OPSC Lite, which you should follow.

98

Open Panzer Help / Re: FrSky X4R

« Last post by LukeZ on January 17, 2026, 12:16:29 PM »

Hi Tom, yeah, I have been out of the hobby for many years so I'm sure the info in the Wiki on what is available is not very up-to-date. I just did a quick check of the FrSky website and they have four pages of receivers so it seems they have no shortage of alternative options.

The FS-A8S is FlySky so that's a completely different protocol. But the X8R will certainly work, though it is larger in size than the X4R. And any other FrSky receiver compatible with your radio and that has the option for PPM, SBus or iBus output will work, so I'd suggest looking through their offerings and picking what looks best for your needs.

99

Open Panzer Help / Re: FrSky X4R

« Last post by Tom on January 16, 2026, 11:15:31 PM »

Seems like with the Tanaris and based on the Wiki suggestions the FrSky X8R is the best option
The X4R seems to be discontinued.

100

Open Panzer Help / Re: FrSky X4R

« Last post by Tom on January 16, 2026, 04:46:12 PM »

Or better X8R?