Electronics for Asiatam Famo - for the benighted

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Postby Herr Dr. Professor » Wed Jun 29, 2022 9:37 pm

Achtung! I am a newbie to electronics. :S

I have swapped "out of the box" electronics from Taigen/Torro and HengLong, and I did some simple electronics in my WCP 4X4 (https://www.rctankwarfare.co.uk/forums/viewtopic.php?f=23&t=32221&hilit=Jeep), but that's it so far.

Now I am working on an Asiatam Famo. The build is at https://www.rctankwarfare.co.uk/forums/viewtopic.php?f=23&t=33379&hilit=Famo. I am posting here in the electronics section like a fisherman dangling a worm on a hook, trying to catch one or more of you electronics wizards who can help the benighted like me.

Of course, my gratitude will be great, but, alas, it won't even buy you a cup of coffee. ;)
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Postby Herr Dr. Professor » Wed Jun 29, 2022 9:41 pm

Here is a photo of the electronics Asiatam sent me when I bought the Famo kit about 5 or 6 years ago. This seems to be Asiatam's motherboard of sorts. ??? The kit came with some instructions titled "Servo Multi - Function Control Unit." The instructions do show a multi-function board, but it was not included and I cannot now find it on the Asiatam web site. From what I can surmise, the board shown in the photo here is actually to be linked to the (mysterious) "multi-function control unit."

Famo Inventory _12.JPG


My objective is to have some means of running the tracks (obviously) and if possible, coordinating the track steering with the front wheels (which will use a servo). I would also like Maybach engine sound, and Taigen's V3 board with interchangeable sound modules are familiar to me, as I have been putting V3 into earlier Torro and Taigen tanks.

I also have other boards I picked up all at once, with no instructions or TX or RX. Here is what I have from identifications I was helped with here on RCTW a year or so ago.

Elmod Fusion and Turnigy
Elmod Fusion & Turnigy.jpg


Benedini TBS Mini Clark TK20
Benedini TBS Mini Clark TK20.JPG


IBU V2
IBU V2.jpg


For transmitters I have a Flysky FS-i6X 6-10(Default 6)CH 2.4GHz AFHDS RC Transmitter w/ FS-iA6B Receiver, a Multiplex Smart SX FLEXX with receiver, and lots of Taigen V3 TX, boards, and sound modules.

So, can anyone walk me through one of the options I seem to have. My first step is to get the Famo electronics laid out and tested to see if I can achieve my objectives of coordinated track and front wheel steering and Maybach sound.
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Postby Jimster » Thu Jun 30, 2022 4:08 am

Being a novice myself, I would highly recommend the Elmod option. Download the Elmod app to your computer/laptop and look for the sound profile you want. Mixing the track movements and steering should be something achievable through programming your radio mixes. A shout out to Rad wouldn’t hurt either. He’s definitely my “go to” expert.
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Postby jarndice » Thu Jun 30, 2022 10:02 am

Elmod make a Torro M16 specific control board that provides all that a Half Track needs including engine sound although resetting the sound to a Maybach engine is a question best answered by someone more familiar with the Elmod board but it does provide power, lights,steering, and direction of travel plus the added extras of turret and gun control,
I do not know if anyone has made this conversion but in his position I would certainly give it a look :thumbup:
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Postby Herr Dr. Professor » Thu Jun 30, 2022 4:15 pm

Thank you! I was expecting the Elmod to be favored among the three. I will download the software if I can (always a tenuous internet connection here in rural America) and see what I can learn about the M16-specific board. However, I am still open to (fishing for, begging for) more ideas of the K.I.S.S. variety. :haha:
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Postby Jofaur86 » Thu Jun 30, 2022 4:39 pm

Not an expert either? I follow the same opinion as "Jimster" see with Rad, who is still one of the high priests of electronics on RCTW and good advice :thumbup:

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Postby jhamm » Thu Jun 30, 2022 4:42 pm

Hi,
the Elmod M16 is not the right electronic for the Famo.
The Famo have two drive motors and the M16 only one Motor
therefore the Elmod M16 have only one integrated esc.
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Postby Rad_Schuhart » Fri Jul 01, 2022 7:30 am

Hi, I got a PM from Herr Professor, but I thought it would be better to answer it here, in case some more people have questions.


I took a look at the thread and you have a nice bunch of options there.
I have no Famo, neither I have seen one in person, but first of all you have to check what is the available room inside of it, to check if the electronics fit inside of the model or not.
What I would do is for sure different of what I recommend you to do, because you want a KISS solution. But doing a fast overview the options you have, and considering everything fits, you have:

IBU 2 BASE: Oh, memories... That was my second hobby grade board, it should provide you all the control and options you need, but you will need to plug a servo to a spare channel in the radio for having servo steering. I have seen it comes with the audio amplifyer attached, you can remove it, the sound the board provides is in my opinion more than adequate. I believe this option would be the easiest for you.

Old Elmod. Pretty much like the IBU and the need of servo in the spare channel. But keep in mind there will be a inertia/momentum that you cannot remove. Some people absolutely love it (For example Herr Jimster) some people hate it, and some are in between like me. So it is your choice.

Clark board: I would stay away from it, I don't like clark products and triggering the functions means very advanced radio programming which you cannot do with your current radio equipment or playing mortal kombat-street fighter 2 with the control sticks.

Benedini board: That would be my personal choice, but you need a double speed controller (about 10-15 eur) The Benedini will provide you all the sounds and lights needed. But at the other hand those boards are very complicated to satisfactorily use (hence is the only one electronic I had to write tutorials in my website!) and you will pretty much need a better radio, which I always say is the most important part of the hobby and is a must, and you only need one. https://radindustries.wordpress.com/2020/06/25/radios/

Small example of what the benedini board does can be seen here, viewtopic.php?f=209&t=33312&p=329998&hilit=hansi#p329998 with more info in my website entry. I think it is feature rich enough even for the hungriest RC function modeller.

Hope it throws you some light.
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Postby Koenigstiger 007 » Fri Jul 01, 2022 8:25 am

Hello,

here are the best =

https://www.sgs-electronic.de/webshop/c ... nfahrzeuge

I use for my FAMO a TVC-B-10 unit in combination with a very good Benedini-Sound - all with 12 Volt. It runs very well ! First I took the asiaram-unit - very bad sound and the steeringg servo was not strong enough.

Best greetings

Guenther
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Postby Herr Dr. Professor » Sat Jul 02, 2022 7:56 pm

Rad and Königstiger007: You have both given me much to consider, and I will be able to continue in a few days after I finish my continuing retirement work of writing a monthly magazine column. I will start by reconsidering the Benedini board. I also want to look into some electronics you have mentioned on your own web pages.

Rad, I agree that your posting here could be of help to others. If anyone doesn't know of Rad yet, I must say that his help has been of outstanding benefit to me and his stencils sit front and center on my modeling table.

Königstiger007: I can se that although you have been here on RCTW for long than I have, and I am grateful for your posting in response to my query. Mit miner Dankbarkeit,

Ed
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Postby Koenigstiger 007 » Sat Jul 02, 2022 8:50 pm

Hello Herr Doktor Professor,

the FAMO is a fascinating vehicle and the Asiatam kit is great. Only the chains are a small weak point, as they tear at a certain point - so you should always have enough spares. My described combination is also great, as it is electronically uncomplicated and requires little adjustment work. In addition, the support from sgs and Thomas Benedini is excellent. If you have any questions, please let us know - it would also work directly.

Kind regards

Guenther :thumbup:
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Postby jhamm » Sun Jul 03, 2022 12:20 pm

Hallo Herr Doktor Professor,

here a video of my sWS with the SGS TVC-M-10-HT => https://www.sgs-electronic.de/webshop/p ... vc-m-10-ht :

phpBB [video]


Regards
Jürgen
Last edited by jhamm on Mon Jul 04, 2022 6:34 am, edited 1 time in total.
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Postby tankme » Sun Jul 03, 2022 9:26 pm

Nice that turns really well.

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Postby jhamm » Mon Jul 04, 2022 6:46 am

Hi,
thank you.
This is because the 5A dual speed controller is with integrated mixer for steering assistance in half-track vehicles.
The Famo and the sWS were only steerable at very slow speeds via the front wheels.
The "steering brake" acted on the tracks and thus a smaller steering radius was achieved.
Up to the full steering deflection the speed of the track on the inside of the curve is reduced proportionally to approx. 50%.
I use the TVC-M-10-HT in most of my half-truck vehicles.
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Postby Herr Dr. Professor » Mon Jul 04, 2022 10:47 pm

That is the kind of steering I would like. I am looking into getting one of the TVC boards from Germany. I will keep you all updated as I regre…unh, progress.
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Postby Herr Dr. Professor » Mon Jul 11, 2022 4:16 am

Progress on the Famo has been at a standstill, as I am looking for the right electronics. On Königstiger's helpful advice, on July 2 I tried ordering electronics from https://www.sgs-electronic.de/. I could not see how to pay them immediately, so I wrote a note through the "Contact" page. So far, no response...

Until I can lay out the electronics and get it functioning, I leave details, paint, etc., alone. I hope soon to give you an update.
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Postby jhamm » Mon Jul 11, 2022 6:19 am

Hello Herr Professor,
I will assist:
"Die Bezahlung des Kaufpreises erfolgt grundsätzlich per Vorkasse."
The payment of the purchase price is always made in advance.
you can order as a guest or register there..
i recommend to register
After completion of the order you get an order confirmation
after that you will receive a mail with the order confirmation and the bank details => payment by bank transfer
Mr. Stelzer usually answers very quickly,
but it may be that he is very busy with his main business (electro construction).
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Postby Herr Dr. Professor » Wed Jul 13, 2022 4:15 am

Thank you, Herr Hamm. I did register, and order has been noted, but I cannot see a means by which to pay. Just now I have left another message offering to pay by a means Herr Stelzer indicates.

Danke, Herr Hamm. Ich registrierte ehe ich die Bestellung gemacht hatte. Aber ich kann keine Bezahlungsweise finden. Ich bezahle gern mit eine Bezahlungsweise Herr Stelzer gibt an.
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Postby Herr Dr. Professor » Thu Jul 14, 2022 7:06 pm

Just an update on SGS electronics: Mr. R. Stelzer had responded to my inquiry immediately. Then he sent another note that google was rejecting his email as "spam." I have given him another email address to reach me, so the electronics will soon be paid for and on there way across the ocean. Hats off to R. Stelzer and SGS Electronics!
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Postby Herr Dr. Professor » Mon Jul 18, 2022 6:57 pm

I am passing on here excerpts of an email from Rainer Stelzer, SGS Electronics. Herr Stelzer is being so remarkably helpful to me!

"Asiatams Famo is a long story. Normally we suggest using one of these:
#A halftrack controller without light: https://www.sgs-electronic.de/webshop/products/tvc-m-10-ht
#B halftrack controller with light: https://www.sgs-electronic.de/webshop/products/tvc-m-10l-ht
#C: halftrack controller with light, sound (amplifier included) and an extra ESC for a winch:
https://www.sgs-electronic.de/webshop/products/tvc-trf-05-ht

"All theses controllers do reduce the speed of the curve inner motor when turning to max 50% of the outer motor. This supports the steering enough to go narrow curves.

"At some point in time Asiatam changed the motors and limiting the speed to only 50% was not enough. A further reduction is needed With the controllers above this could not be changed. So some users bought the smallest Double ESC with setable Mixer (TVC-B10) and selected a mixer that reduces down to 0% in the curve.

"Please check the following: upply one Motor with a voltage up to the rated voltage and the other one with 50% of this voltage. Is the resulting radius small enough?"
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