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aussieslotter

Aussies lead the world in digital slots.

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I mean just take a look at this. A digital chip half the size of your pinky fingernail. 
And wireless .......plus goodies.
 

New F1 chip in left. Typical slot car decoder, this one in particular Scorpius.

The new F1 chip is around 1/7th of the average sized car chip. That’s a reduction of around 85%

Go Aussie !

 

 

 

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www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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Hi Aussieslotter,

Welcome to the club... of those who can make 5x10 decoders! The new Scorpius decoders look terrific.

In my work on 5x10 decoders (mine are slightly larger)... I publicly shared results last November...

https://www.slotforum.com/forums/index.php?showtopic=197383&p=2405563

The dimensions of my decoders are 5.4mm x 10.8mm with a 7A drive MOSFET. They are SSD-compatible rather than wireless.

Since then, no one has challenged whether at those dimensions they are currently the smallest functioning slotcar decoders so I believe my decoders (at least for a while) have held the world record...for ‘smallness’.

Your work looks really superb and I can see you are really very close to having... or maybe you already do have... functioning decoders at 5.0mm x 9.4mm. At this point I anticipate your decoders will become the worlds latest smallest slot car decoders - a prize your team certainly deserves after all the effort invested.

I admire and respect your team’s technical progress - keep up the great work ;)

c

 

Edited by C-Type
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Hi Clive,

    I’ve been wanting to make an F1 chip from the start. So long in fact I forgot about it. Then seeing your very small project reminded me to pull my finger out. So for that I have to thank you.

So I rang John to have a quick chat after which I sent him a specification. The mission was to make the smallest chip for the buck. It had to be wireless with the latest technology, best quality parts and made in an ISO approved  robotic manufacturing plant. The smaller you go the higher the costs and risks as you can appreciate. It just happen to come out at 9.4x5.0

Im hoping John can start work on the firmware next week. He is busy on other projects. He has however used our purpose built programming jig to successfully do the initial program so now all future firmware updates can be wireless. On our chip all the firmware has to done from ground up. Working with the latest products is a lot of fun but it means John has to be up to speed with the latest and greatest which means learning.

We will use RF Connect app to reflash the F1 decoder wirelessly initially before transferring over to the app I’m building which already has a complete DFU (Device Firmware Upgrade ....via Bluetooth) program in place ready to go. Tested on other projects and very robust. Once your slot car can talk to your phone it opens up a lot of exciting possibilities.
And yes those shiny solder pads are gold nickel immersion for superior conductivity yet strong. And red is well, just a bit different from normal green.

 

 

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Edited by aussieslotter

www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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Yepp Aussieslotter, all sounds good and certainly will be even more fun when you get to start wiring the new decoders into slotcars. Big fun for sure.

I’ve put 5.4mm by 10.8mm SSD-compatible decoders into slotcars ranging from 1:64 scale MicroScalextric cars all the way through to NSR F1 86/89 cars. I’ve also tried them with Evo King 50,000 rpm motors which pull in excess of 4A. They run too though in that case I see some further development work will be needed.

Meanwhile RF Connect is really excellent software for programming up the nRF52 family - good choice.

All good wishes to Team Scorpius with the text stage of testing. It’s all looking really great!

c

Edited by C-Type

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Hi Guys.

   Today the worlds smallest digital decoder (As of 5th Feb 2021) breathed life for the first time. It works first time....amazing!

 

So this chip has now been programmed and testing begins. From now on we can use the app to wirelessly upgrade the development firmware. 

On a big day John may produce up to 6 firmware versions to test so this tool will be handy. Receive file on phone. Insert it into the app and press go. Its that easy.

 

Micro soldering practice today also. Lots of fun.

 

So next we will add lane changing protocols.

 

Video by John is rough, but Ill get some more video soon.

 

https://youtu.be/qybzioga2UY

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www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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Nice work Rick and team, good to see you are still improving the product and with the top manufacturers bringing out F1 cars it’s a no brainer. 

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New Scorpius F1 chip fitted into a Thunderslot Lola.

Third picture shows new versus old. 
It’s amazing how fast technology moves. 
 

Rick 

Aussieslotter 

 

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Edited by aussieslotter
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www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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Hi Aussieslotter,

Just checking back our conversations about possibilities of a 5x10 decoder design... looks like our eyes were opened to the possibility last summer...

https://www.slotforum.com/forums/index.php?showtopic=197383&p=2365095

Great progress since then by both teams - Team Scorpius and my team.

Meanwhile, its not a big deal but I do think you should consider correcting your misrepresentations of my work which remains on public display on the Scorpius Wireless facebook public website dating from 2nd August 2020. It all just looks a bit silly. Thank you.

Returning to the positive - your small decoder work is looking really superb - and unlike my work you are focusing on manufacturing compatibility and establishing a production supply chain - all with monetisation in mind - keep up the great work!

c

 

 

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Thanks C for the compliment. 

.......having lots of fun along the way :)
 

Rick
 

 

 

Edited by aussieslotter

www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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Wow your recent work is fabulous. Such a great improvement in size. Leaves others well behind if size is an issue. Digital tracks here all home types but SlotNZ did build one of those automatic ones a few back but sold to local member when he went to Spain. Think it is still in Napier.  Have tried digital a couple of times in NZ and Aussie but would love to try your sometime. Keep up the good work. As a 60year slottie probably too died in wool for analogue but I have frequently kept up with your progress. Regards Chas Le Breton (charlesx)

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14 hours ago, aussieslotter said:

 a certain manufacturer supposedly using burnt out components on brand new prototype in a picture supplied. 

Hi aussieslotter, I cant see any reference to the above text anywhere in the public domain. I think you might be mistaken in your reporting...?

As I say its not a big deal - particularly if lessons have been learned.

Out of interest are you seeing similar race performance from the new Gen 2 decoder and the new 9.4x5 design? I am interested to learn from you whether you see performance advantages or disadvantages at the extreme levels of miniaturisation being attempted?

For me its hard to answer that question as my smaller devices have higher current spec than the standard SSD decoders with which they share ecosystem.

c

 

Edited by C-Type
one type corrected

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Yeah probably all the more reason to stick with 3A mosfets so you don’t get tempted to run big currents through a board with tiny tracks and other vulnerable low current components. 

After tests we may find it beneficial to actually step up in size if reliability becomes an issue. A 12x7 decoder, time will tell and it will still be micro.


The motors used in digital typically have 2A useage on take off and settles down to 0.3 to 0.5A almost immediately.

One amazing test session using the vertical loop test track seen the Scorpius chip out survive a NSR 46K Shark at 18V after 3 x 10,000 lap test sessions.

The motor got that hot it melted the motor mounts and the motor fried. The Scorpius chip was installed into another car and it ran perfectly. So we know how not to over design a chip as well as design it.
Successful digital is very much more to scale speeds. Anything more than a 25K motor will bring slower lap times as it’s unsuitable rev range is exposed. For home tracks 18K motors are perfect. Want more grunt just up the voltage. Not the motor. Also passing through any lane changers at high speed despite the car so testing to unrealistic speeds we find is a waste of resources as we have so many projects we want to get to.

Good news. John is 99% finished on the firmware for this, he has been working on several other contracts hence the delay, but I’ll be getting some working samples late next week. Then onto the loop where the plan to try to destroy it. 
 

Below the recent video I posted showing testing going on on the loop at 8.8m/s
 


 

 


www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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On 2/13/2021 at 9:56 AM, charlesx said:

Wow your recent work is fabulous. Such a great improvement in size. Leaves others well behind if size is an issue. Digital tracks here all home types but SlotNZ did build one of those automatic ones a few back but sold to local member when he went to Spain. Think it is still in Napier.  Have tried digital a couple of times in NZ and Aussie but would love to try your sometime. Keep up the good work. As a 60year slottie probably too died in wool for analogue but I have frequently kept up with your progress. Regards Chas Le Breton (charlesx)

Thanks for the compliment Chas.

Size is important for obvious reasons, F1 cars, old classics, even motor bikes among others.

But anyone knowing how the floating motor pid should work would realise blutacking a car decoder affects handling.

The photo below shows the current generation Scorpius chip on the right attached to the floating motor pod. Attached wires add resistance due to inflexibility even we use smallish wire gauges. A guy looking for extra tenths is not going to want the motor pod interfered with.

And on the left the worlds smallest functioning car decoder attached to the chassis rather than the motor pod.

So the size matters for more than 1 reason .

Rick

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Edited by aussieslotter

www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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And a blast from the past the first Scorpius prototype the size of a house. And an aerial as long as a fire hose.

 

 

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www.scorpiuswireless.com

The original wireless digital system that GRUNTZ! :)

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