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2Box Drumit 5 Forum => DrumIt 5 Hardware => Topic started by: Gav on May 18, 2017, 02:06:09 PM

Title: Hi hat calibration
Post by: Gav on May 18, 2017, 02:06:09 PM
Hi guys,

Just bought my drumit5 this week - one of the last as they are discontinued..

My Hihat calibration kept coming up 'no change' - despite trying everything that has been recommended on this forum and online. But then I tried turning the magnet sensor upside down, with the green foam at the bottom - and it worked!

What does this mean? Is there a way to reverse the polarity in the brain so I can turn it the right way up? : )
Thanks!
Gav
Title: Re: Hi hat calibration
Post by: Coda on May 18, 2017, 06:04:35 PM
What do you mean by 'discontinued'?
Title: Re: Hi hat calibration
Post by: Gav on May 18, 2017, 10:04:26 PM
The distributor in the uk told me it's discontinued.
Almost all uk music shops out of stock..
Title: Re: Hi hat calibration
Post by: Drumster on May 18, 2017, 10:36:49 PM
Different story elsehwere... http://www.ebay.com/sch/i.html?_odkw=2Box+drummit5&_osacat=0&_from=R40&_trksid=p2045573.m570.l1311.R1.TR1.TRC0.A0.H0.X2Box+module.TRS0&_nkw=2box+module&_sacat=0
Title: Re: Hi hat calibration
Post by: eyerichards on May 19, 2017, 02:49:55 AM
Quote from: Gav on May 18, 2017, 02:06:09 PM
Hi guys,

Just bought my drumit5 this week - one of the last as they are discontinued..

My Hihat calibration kept coming up 'no change' - despite trying everything that has been recommended on this forum and online. But then I tried turning the magnet sensor upside down, with the green foam at the bottom - and it worked!

What does this mean? Is there a way to reverse the polarity in the brain so I can turn it the right way up? : )
Thanks!
Gav

Hey Gav,
I came across this exact same thing this morning upon setting up a new 2box kit in the shop I work in here in New Zealand. It was doing my head in !!!! According to our Tech in head office there was a "production issue with the last batch " Ask your local shop to get a replacement . The part number is 10221 Hi -Hat Receiver Assembly
Cheers :)
Title: Re: Hi hat calibration
Post by: Coda on May 19, 2017, 05:49:02 AM
Quote from: Drumster on May 18, 2017, 10:36:49 PM
Different story elsehwere... http://www.ebay.com/sch/i.html?_odkw=2Box+drummit5&_osacat=0&_from=R40&_trksid=p2045573.m570.l1311.R1.TR1.TRC0.A0.H0.X2Box+module.TRS0&_nkw=2box+module&_sacat=0
Well, anything is available on ebay :) but if we look at on of Europe's largest music stores and one well known edrum specialists:
https://www.thomann.de/intl/search_dir.html?bf=&sw=2box
https://www.drum-tec.de/module/2box

In stock. If they were discontinued I know Thomann would not have any or only b-stock.
Title: Re: Hi hat calibration
Post by: Gav on May 19, 2017, 09:30:44 AM
Thanks
I'll contact support.

Re stock - there is no new stock - so once shops all sold out that it's - so I was told anyway.
This is re the kit - the brain lives on with the drumit 3 brain.

Cheers

Title: Re: Hi hat calibration
Post by: digitalDrummer on May 23, 2017, 03:54:38 AM
Quote from: Gav on May 19, 2017, 09:30:44 AM
the brain lives on with the drumit 3 brain.

Cheers
That makes less than no sense! How does the DrumIt Five brain live on through the (new and as yet unreleased) DrumIt Three module which is very different from the Five???
Title: Re: Hi hat calibration
Post by: Chrisk on May 23, 2017, 04:39:04 AM
Quote from: digitalDrummer on May 23, 2017, 03:54:38 AM
That makes less than no sense! How does the DrumIt Five brain live on through the (new and as yet unreleased) DrumIt Three module which is very different from the Five???

Maybe they can't afford 2 full productions at the same time, new production in quantity for a product that was available for a while vs new one.
Title: Re: Hi hat calibration
Post by: Chrisk on May 23, 2017, 05:04:51 AM
Quote from: Coda on May 19, 2017, 05:49:02 AM


In stock. If they were discontinued I know Thomann would not have any or only b-stock.

When a product get discontinued from any, it take time to sell the ones remain in stores, they can't put them in garbage, same as TD-30 module, they wont do others new production anymore. Discontinued means, flush the available one remain in stock.
Title: Re: Hi hat calibration
Post by: Coda on May 23, 2017, 04:28:35 PM
Quote from: chris k on May 23, 2017, 05:04:51 AM
When a product get discontinued from any, it take time to sell the ones remain in stores, they can't put them in garbage, same as TD-30 module, they wont do others new production anymore. Discontinued means, flush the available one remain in stock.
Yeah that's obvious, but do you know how much stock Thomann keep of 2box modules and how quickly they would sell out if resupply dried up?
Title: Re: Hi hat calibration
Post by: Jman on May 23, 2017, 06:29:17 PM
Really, the only somewhat important thing missing from the Drumit 3 compared to the Drumit 5 is 2 less outputs. So it makes sense to sell only the Drumit 3 after release. I do use all 8 individual outs (headphone outs set to Direct pair), but most drummers prolly do not use that many outs as it takes up a lot of room on the FOH mixer.
A Drumit 6 in the future would be nice though.
Title: Re: Hi hat calibration
Post by: Coda on May 23, 2017, 08:13:20 PM
I use 5 outs plus phones for monitors (we are short of channels on the desk).
The real win for the D3 is the option to use either Roland standard or 2box trigger types if one wishes. I'm sure that will resolve any lingering hi-hat playability questions.
Title: Re: Hi hat calibration
Post by: digitalDrummer on May 24, 2017, 03:37:19 AM
Not that 2box is big on announcements, but there has been no official word that the Five is being discontinued. It is well known that 2box has had difficulty getting product out to dealers, so it may well be that they have focussed their production on the Three to ensure sufficient stock when it goes live.
Title: Re: Hi hat calibration
Post by: Gav on June 05, 2017, 11:23:33 AM
Just to give an update, HandinHand distribution in the UK sent me a new sensor and it works fine.
They have been very helpful indeed.

Cheers
Title: Re: Hi hat calibration
Post by: nocturnodrummer on June 05, 2017, 06:54:36 PM
I've had that issue.. twice! I can give you some advice on how to avoid it in the future. I cant guarantee that it is a 100% correct solution but it works for me. I've noticed that the hi hat sensor never failed during playing so  I concluded that it goes bad either when I power up the module or shut it down. The solution is simple, never turn on/off the module when the hi hat cable is connected to the cymbal! Turn on the module first, and then connect the cable. And the some when turning it off, first disconnect the cable, then hit the button. The hi hat input has voltage in it, so maybe when powering up the module there can be a situation when the voltage is too high(some kind of uncontrolled peak from the adaptor) and it fries the hall sensor (my guess only, I'm not an electronic engineer).
Title: Re: Hi hat calibration
Post by: Coda on June 05, 2017, 08:56:59 PM
Quote from: nocturnodrummer
I've had that issue.. twice! I can give you some advice on how to avoid it in the future. I cant guarantee that it is a 100% correct solution but it works for me. I've noticed that the hi hat sensor never failed during playing so  I concluded that it goes bad either when I power up the module or shut it down. The solution is simple, never turn on/off the module when the hi hat cable is connected to the cymbal! Turn on the module first, and then connect the cable. And the some when turning it off, first disconnect the cable, then hit the button. The hi hat input has voltage in it, so maybe when powering up the module there can be a situation when the voltage is too high(some kind of uncontrolled peak from the adaptor) and it fries the hall sensor (my guess only, I'm not an electronic engineer).

Interesting theory. Should be easy to verify on an oscilloscope whether a spike is going to the hall sensor. I've had one board die for no apparent reason, and I *always* turn the module off/on with the cable plugged in first (I mean why wouldn't you?).
IIRC the inputs to the sensor chip are protected with diodes and resistors but I'd have to take another look at the schematic to be sure.
Title: Re: Hi hat calibration
Post by: nocturnodrummer on June 05, 2017, 09:29:31 PM
Well, for the second time 2box send me a different board! With the newer version number printed on it. And they said that it should resolve the issue. So, there was something wrong with the design. But since I make half of my living playing drums, I can't risk not having a working hi hat on the weekend. I'm now checking my emails and now I remember that the updated circuit board has gone bad too! It was, a "mystery" to the 2box staff :) But since I developed my own ritual of plugging the hi hat, everything is in order :) maybe my module has some fault in it?
Title: Re: Hi hat calibration
Post by: ANGR77 on June 05, 2017, 09:45:34 PM
This is an interesting question. We (Me and dad) did some studies last year on the hall effect sensor (Allegro A1392) and according to all specs the maximum limit of supplied power for the circuit is 3.5V.

However - the power supplied on the hi-hat output is 4.12V. A zenerdiod/resistors won't help this scenario. We can't measure any spikes using oscillioscope when powering up/down on the hi-hat input...but we are 92% convinced that the normal powerstate sometimes overloads the Allegro circuit. We have also seen strange power leaks between the 2box chassi and the hi-hat stand where the hi-hat is connected. So make sure your 2box module is exectronically separated from the rack metal.

Yes, I am glad you asked (Joking..) - the Zourman Conversion Module is designed to handle up to 6 volt's...

Best Regards

Anders Gronlund / www.zourman.com
Title: Re: Hi hat calibration
Post by: nocturnodrummer on June 06, 2017, 11:39:45 AM
So there is some truth to what I'm thinking. And how's that separation suppose to look like? Sorry for not quoting but my phone cant quite work it out. Do you use different hall sensor than 2box?
Title: Re: Hi hat calibration
Post by: Coda on June 06, 2017, 11:54:01 AM
Quote from: nocturnodrummer on June 06, 2017, 11:39:45 AM
So there is some truth to what I'm thinking. And how's that separation suppose to look like? Sorry for not quoting but my phone cant quite work it out. Do you use different hall sensor than 2box?
I think 2box use the same sensor chip. IIRC, when I was researching designing a new board I only found 2 Allegro devices which could possibly work, and one of them wasn't 100% compatible. Most other Hall Effect sensors work differently so are not direct replacements.
Title: Re: Hi hat calibration
Post by: ANGR77 on June 06, 2017, 04:26:35 PM
Hi!

I might not completely follow this discussion...but just clear any confusion. 2box is using the Allegro A1392 in their hi-hats. This is the only model which is possible to use.

Our findings is assumptions-but we are quite sure the circuit pops because when overriding the specs.

To isolate the 2box module - (this is valid if you have standard 2box pads on rack) check if the stand holding the 2box module is in metal and is fixad with metal screws. If it is attached to the 2box rack...which I assume is in metal...and the hi-hat stand is connected to the rack. Here you have a big nice connection. You could either detach the 2box module or add some extra clutch isolation under the hi-hat magnet to isolate and break this circuit.

Last- the Zourman hi-hat conversion modules don't use any Hall effect sensor or Alllegro circuit at all.
We have adapted so a Roland based hi-hat pedal using its resistor and then we convert the signal to fit 2box hi-hat system. Just plug-play - no fiddling with magnets.

Best Regards

Anders / www.zourman.com

Title: Re: Hi hat calibration
Post by: Jman on June 06, 2017, 04:48:41 PM
With hundreds of them out there in use, I don't have the problem with boards/sensors burning out with my Stealth 2Box HH Stand Conversion kits.   J
Title: Re: Hi hat calibration
Post by: Deve Loper on June 07, 2017, 06:28:02 PM
Hi. The hall sensor has indeed 3.5V max recommended supply voltage, abs max 8V.
The hihat input has when unloaded 4.1V, with hihat 3.85V. (It's a current sensing input.)
But the hihat board has a series diode, so the chip supply never gets over 3.5V.
Cheers, Deve.
Title: Re: Hi hat calibration
Post by: nocturnodrummer on June 07, 2017, 08:11:34 PM
Hi Dave, thank you for your input on the subject. Maybe you have an idea on what can possibly cause the problems with the hall sensor? Mine broke two times, never during playing. I may be able to find the newer version of the board in my house(I'm currently under a house renovation and everything is either hidden or misplaced somewhere) and take a picture to compare what changes 2box has decided to make.
Title: Re: Hi hat calibration
Post by: Deve Loper on June 07, 2017, 08:54:30 PM
Hi. I left 2box beg 2012, so I don't know what (if) any changes were made to the hihat board.
The hihat input on the module at least should not affect the hihat board at power up / down.
Also, it is short circuit safe.
Best, Deve.
Title: Re: Hi hat calibration
Post by: Coda on June 08, 2017, 06:25:14 AM
Well, we appreciate that you still hang around here and help out occasionally!  :D
Title: Re: Hi hat calibration
Post by: ANGR77 on June 08, 2017, 03:52:19 PM
You are probably right, Deve - but I am pretty sure we that we measured on the power input on the Allegro circuit itself - when we realized that the power was over the specs. But, I am currently doing some other research...so I will check again. :-)

It is still strange why the circuit "pops" under certain scenarios. Somebody claimed that they "popped" on stage environments where it could be a lot of earth leaks, unstable power, magnetic fields etc.

Also the fact that Jmans solution never popped...which I believe is an electronic isolated solution could speak for the power leak scenario between the 2Box module and the hi-hat.

Somebody said that this magnetic solution is exactly the same solution which was used in DDRUM (in the good old days) - and guess what - it never popped either.

But what do I know? :-)

Best Regards

Anders / www.zourman.com