The YiHi SX350 35W Chip at Varitube

[DejayRezme]

Ok so after all my whining and .....ing and subversive remarks about the Joule thingy the coil finally dropped for me on what a Joule display would be extremely useful for! I was watching Plumes of Hazard Episode 56 at about 42m30s they talk about the upcoming SX350 mini a bit.

JOULE DISPLAY IS A GREAT IMPROVEMENT ON THE PUFF COUNTER!!!

Mastblast said that on the normal sx350 mini the joule counter simply goes up while you vape (He was talking about it because people thought it might be upgradeable because of the J in the display). However unlike a puff counter joule would include how LONG your individual puffs are and at what WATTS you took those puffs! This can be useful for checking how much liquid you vaporized (accumulated joules output should be directly proportional to liquid vaporized) or alternatively how long your battery lasts (say 2500mah at a certain resistance / voltage means Watts * time = Joule. So you can easily gauge how "good" a specific battery is).

If they use it like that it's a very nice twofer addition indeed! If anyone could confirm that it's actually a display and not a setting that would confirm it. Even though it's a simply idea but that's often the case with useful innovation.

 

[Onedesign1]

Mast gave you an epiphany?
Rats now it's going to his head

I'm awaiting to have dinner with them tonight and the next 2 days with them the TPC convention. Will report anything I learn of course....

 

[TruckerMSA]

The finish is looking good

Sent from the Truck O shop

 

[Onedesign1]

Hey guys....I will be posting some pics up later.... But I had hands on time with the temp control J chip and a lot of discussions over the last 2 days. As expected the HOW is not going to be explained other than I know he has an on-board MCU of some sort processing it.

Its definitely a different scheme from what I can tell. Basically the chip has 2 modes ... Power or Joule. Power is normal of course. When you switch to Joule you have 2 controls: Joule (think of as power as debated here earlier in the week), then you have Temp. So if you set one out of range of the other such as low joule and high temp its never going to get there temp-wise. For example I set it to 10 Joules and 500F and it never exceeded 300F. On the other hand I set it to 50 joules and 400F and temp control kicked in. The scheme is within 10% I believe of the set temp. Refinements are yet to be made via software but we spent considerable time with $10k FLIR and firing it and its accurate. What you see when it tries to exceed the temp is the actual temp reading fluctuating and not the power setting. WHats actually happening is its rapidly chopping the power to maintain temp. Confirmed through discussion and many scratch pad sketches. Its still DC-DC but based on coil temp it will cycle the power as needed to hold the temp. They just chose to display actual temp readings.

Currently its all nickel wire guys. But he believes Kanthal is possible and I did fire a Kanthal coil on it but when we put the FLIR on it accuracy was not spot on nor did he expect it to be. But he thinks he can do it. Just not sure when ....so plan on nickel for now.

Even though I am posting this here I never did clarify if the chips only will be available but I believe thats probable .... I just didn;t clairfy it as we were pretty busy both days. They are readying a refinement of the mod to take the chip. The new mod is very nice....some nice refinements were made to the mold and some beautiful colors added.

Working on my PC..will try to add some stuff from my phone here shortly....if they look like something you saw somewhere its because I did send it out over the last couple days for folks to see and I know stuff got posted

Let me know you thoughts and questions

 

[Onedesign1]

very short video
https://vimeo.com/118219698

 

[rhelton]

somewhere along the line I heard thermistor technology on board but also tables with empirical data were involved......perhaps the combo is how it gets done.

Gotta love the project lists that never get started!

Empirical data is the only thing it could be. Un-burnt cotton is the result of empirical data encoded into the firmware. Monitoring the changes in resistance goes right along with adjusting the output voltage according to the data given.

Its one step forward from the Darwin.

You both had the right answer, it makes more sense with them combined When you think about all of that they should be able to do it with kanthal or someone should.

 

[rhelton]

Mast gave you an epiphany?
Rats now it's going to his head

I'm awaiting to have dinner with them tonight and the next 2 days with them the TPC convention. Will report anything I learn of course....

I heard you guy's were close tell him I said hy

 

[rhelton]

The finish is looking good

Sent from the Truck O Shop

That looks great Trucker, thats awesome considering you do this in your truck.

 

[Marc411]

very short video
https://vimeo.com/118219698

Tease

10char

 

[TruckerMSA]

That looks great Trucker, thats awesome considering you do this in your truck.

Thx bud[emoji1]


Sent from the Truck O Shop

 

[rhelton]

Has anyone seen this YiHi SX330 V3S 150 Watt DIY Chip NOW IN STOCK On Sale!!! :: DIY PARTS / KITS - A to Z Vapor World seems weird is that a clone?

 

[somun]

When you think about all of that they should be able to do it with kanthal or someone should.

Theoretically kanthal is no different from nickel and the same method should work. Just a coefficient difference. But in practice due to the increased measurement errors (as your signal gets smaller you'll have more error/noise when you measure it) it is not reliable. It's the difference between being within 10 degrees from your set limit versus 100 degrees

 

[Onedesign1]

Theoretically kanthal is no different from nickel and the same method should work. Just a coefficient difference. But in practice due to the increased measurement errors (as your signal gets smaller you'll have more error/noise when you measure it) it is not reliable. It's the difference between being within 10 degrees from your set limit versus 100 degrees

Exactly the issue Somun....but he thinks he can do it. From what I could get from him its calculating real-time and then feeding back your set point for limiting.....which means the coefficient difference is the challenge. I can tell you whenever there was down time I'd find him winding coils, taking FLIR readings, making notes, etc. He speaks close to no english but pictures and graphs speak a thousand words and he's a true hands on techie....plus his right hand girl speaks excellent english and he clearly understands the preference for kanthal

 

[Onedesign1]

Has anyone seen this YiHi SX330 V3S 150 Watt DIY Chip NOW IN STOCK On Sale!!! :: DIY PARTS / KITS - A to Z Vapor World seems weird is that a clone?

no its legit....its the board in the IPV stuff....the SX330. Inferior board to the SX350 line but still a good board.

 

[BadDaddy4007]

no its legit....its the board in the IPV stuff....the SX330. Inferior board to the SX350 line but still a good board.

I saw that listing too. But if I were to purchase another board ( which the Boss Lady has nixed so far) I'd get mine from Varitube. I've dealt with AtoZ, not a bad company but I prefer OD.

 

[rhelton]

I saw that listing too. But if I were to purchase another board ( which the Boss Lady has nixed so far) I'd get mine from Varitube. I've dealt with AtoZ, not a bad company but I prefer OD.

Yah man I agree and if I am going to spend that much money its going to be a mini or the sx 100watt.

 

[Onedesign1]

Some info on the S Class and M Class Temp vs upgrade since I see quite a bit of discussion across various forums and pages.

I can definitively say that the J board is a new board designed to LIMIT temperature. Its the same base board with different components....newer available technology if you will. Combined with the right software they can manage the temperature of the coil to certain accuracy.

YiHi understands the desire for everybody to want the function via a software upgrade. They listen to customers and like to give what is requested.

The real issue with this one is they have new hardware technology on the J than when they built the regular board. So all they can do is look at a software approach. Did they say its impossible? No. They said they are looking into it in fact but caution it can not be as accurate or reliable as the J board. If they can do it they will but it would not match up to the performance of the J board.

I think its encouraging as always they are listening to their customers. But we need to take a wait and see approach on this one. There is no doubt if they can do it that the control resolution will suffer compared to the M Class device. If thats ok for some people then perhaps an upgrade is good enough should they be able to do it. But lets wait and see. The M class is their priority at the moment.

 

[TruckerMSA]

Some info on the S Class and M Class Temp vs upgrade since I see quite a bit of discussion across various forums and pages.

I can definitively say that the J board is a new board designed to LIMIT temperature. Its the same base board with different components....newer available technology if you will. Combined with the right software they can manage the temperature of the coil to certain accuracy.

YiHi understands the desire for everybody to want the function via a software upgrade. They listen to customers and like to give what is requested.

The real issue with this one is they have new hardware technology on the J than when they built the regular board. So all they can do is look at a software approach. Did they say its impossible? No. They said they are looking into it in fact but caution it can not be as accurate or reliable as the J board. If they can do it they will but it would not match up to the performance of the J board.

I think its encouraging as always they are listening to their customers. But we need to take a wait and see approach on this one. There is no doubt if they can do it that the control resolution will suffer compared to the M Class device. If thats ok for some people then perhaps an upgrade is good enough should they be able to do it. But lets wait and see. The M class is their priority at the moment.

Why even bother? I mean if people want temp control then buy the m class chip or mod. Why change a board that is already accurate for what it does.


Sent from the Truck O Shop

 

[Onedesign1]

Why even bother? I mean if people want temp control then buy the m class chip or mod. Why change a board that is already accurate for what it does.


Sent from the Truck O Shop

don't disagree....just conveying the current status of the much discussed topic

 

[DejayRezme]

When you switch to Joule you have 2 controls: Joule (think of as power as debated here earlier in the week), then you have Temp. So if you set one out of range of the other such as low joule and high temp its never going to get there temp-wise. For example I set it to 10 Joules and 500F and it never exceeded 300F.

Thank you for the update! I'd be curious to know if there is a linear dependence between their joule scale and watts. Or if in fact it's the same (50 J = 50 watts). On the datasheet they have the same max voltage and ampere for watt / joule mode.

Like I said before I'd much prefer they would scrap the idea of using joule as a unit as all. Either use watts, or add a third mode: Temperature mode. The watts are automatically changed to get to your temperature asap (basically max power until temp) and you change the temp with the +/- buttons instead of watts / joule.