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11
Questions / Re: Need immediate with battery case!!
« Last post by stevesciulli on April 14, 2018, 07:08:13 PM »
I truly appreciate the quick reply's and the kind and loving words. the MIDI SPROUT family is the best.
Sam I'm going to sent you an email with a couple of pictures of the wires from the battery box. Its very strange.
So many wonderful midi sprout stories to share. After I get back up and running I'll communicate more.
Thanks Nicola and Sam
12
Development / Re: USB midi not working
« Last post by sam on April 14, 2018, 04:58:48 PM »
Excellent work manuel!!  repairing the low cost USB/MIDI units is definitely a challenge.  if a manufacturer skimped on the opto isolator, the unit probably doesn't have a very strong clock or power regulation.

So I know many of you are wondering, "why does this cheap adapter work with a MIDI keyboard by doesn't work with the Sprout?"

Because the MIDI Sprout is measuring conductivity, I try to isolate the Sprout circuit as much as possible from the host Synth/computer.  In a perfect MIDI environment, the optoisolator is all that would be needed.  But ... most MIDI Keyboards and devices don't really care about isolation, they are perfectly happy to 'share a ground' between the MIDI Keyboard and the host.  When looking at the 5 pin DIN MIDI Jack, I do not attach 'ground' (the middle pin).  Ground connection should not be required between a MIDI source and host. 

On those cheap MIDI cables, the Ground is 'connected' and the optoisolator is 'bridged', this would result in the MIDI Sprout being connected to both the plant and the host computer which is essentially a noisy loaded mess.  Medical equipment is isolated using a variety of expensive components, the Sprout is expecting the host to have an isolator installed.

On the side of the board with the LEDs and solder connections, you can see pads which can be used to 'bridge' MIDI ground pin to the Sprout board Ground, this will allow some usage (albeit not great functionality) with hosts which require Ground connection.  But .... Please don't do it, i disconnected ground for a reason ;)

-sam
13
Development / Re: USB midi not working
« Last post by manuel on April 14, 2018, 09:59:43 AM »
Also had problems with these cheap USB2MIDI adapters initially.

They seem to be not very MIDI style, as the opto-isolator is not populated in many of them.

I followed this blog post to fix mine, by adding that optocoupler:
http://www.arvydas.co.uk/2013/07/cheap-usb-midi-cable-some-self-assembly-may-be-required/

May not be feasible for everyone.

But I'll see if it works with one of my fixed adapters and a Raspberry Pi, so you know if its worth getting another adapter.
14
Questions / Re: Need immediate with battery case!!
« Last post by Nicola Alexandra Hajdu on April 14, 2018, 01:57:24 AM »
@Sam
I'm sitting here grinning like a 15 years old teenager with a flushing face. :-[ I feel connected with you & Data Garden plus your served me very well with an excellent customer service which i will never forget. :)

@Steve
I really hope you can make it. If you don't mind please let us know the further course of your adventure. You know how the Human mind works, ...curiosity is hard to beat & when an issue turns out positively then the better. :)

Much Love
Nicola
15
Development / Re: ATMega Programming
« Last post by shockyzn on April 13, 2018, 04:46:46 PM »
Thank you so much Sam. Yes it is my very first time using and Arduino. Will have a look at the hte instructions and give it a try
16
Development / Re: ATMega Programming
« Last post by sam on April 13, 2018, 04:28:27 PM »
Everything should be available on the GitHub for the MIDI Sprout shield.  Checkout hte Instructions PDF for the assembly.  https://github.com/electricityforprogress/BiodataSonificationBreadboardKit

What have you tried, what is failing/erroring, and what connections have you made?  Is this the first time you are programming with Arduino?

-Sam
17
Questions / Re: Need immediate with battery case!!
« Last post by sam on April 13, 2018, 04:26:21 PM »
Hey Steve - Oh wow it is wild to hear that you have some melted wires in the battery box.  The battery wires are thin but they should not be heating up. 

When you exchange the batteries, I suggest turning the battery box 'upside down', that way the circuit board can only touch the black plastic battery case and can not short circuit on the springs or battery terminals.

The easiest solution is to strip the two battery wires and solder the connection, this is something that a friend or neighbor, anyone with an iron and a little experience could take care of the two wires in a minute.

You likely have purchased your Sprout through Data Garden, and I am sure that they would provide support/replacement, although I'm not sure what their best support contact email address is.  You should check your purchase emails from Data Garden. 

I am happy to send you a battery box myself, it would just cost a couple bucks for shipping depending on where you are located.  Of if you are in Philly I can fix it for you ;)  ping me at samuel.cusumano {at} gmail [dot]com or through the store link that nicola mentioned.

Make sure to plug the positive and negative leads into the correct hole, the Sprout doesn't deal well with reverse polarity.  The circuit board should be clearly labeled for Power (red) and Ground (black).


--And thank you so very much Nicola for helping out, you are the best!!!
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Development / ATMega Programming
« Last post by shockyzn on April 13, 2018, 10:04:53 AM »
Hello there. I have an Arduino Uno R3 Clone.. it has a built in ATMEGA chip... How do i go about programming the chip for the Midi Sprout? I have tried and failed. Please Help
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Questions / Re: Need immediate with battery case!!
« Last post by Nicola Alexandra Hajdu on April 13, 2018, 06:47:40 AM »
Try to ask Sam if he is able to send you a replaceable battery kit. The rest can be soldered either by yourself or by a friend or in worst case, by a repair shop near your living environment:

https://squareup.com/store/electricityforprogress/item/biodata-sonification-kit-solder?square_lead=item_embed

Much Love
Nicola
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Questions / Re: Need immediate with battery case!!
« Last post by Nicola Alexandra Hajdu on April 13, 2018, 06:38:15 AM »
That's a question i'm not supposed to know as i'm not part of the Data Garden team, i'm afraid BUT i have a hunch that Sam is the right guy to consult for such matters. He may be able to give you advice that may come handy for whoever is ready to fix it quickly for you. This may be a local repair shop as well, if you don't know anyone in your circle. Depending on where you live,...another option might be to send your Sprout back to either Data Garden or Sam, depending to whom of the two you placed an order in the past.

Both are able to repair it. One thing is certain, you need to find the quickest solution or else you have to postpone your event or improvise with something else very close to the promised topic & then try to offer a second concert, as a mack up. As things like that can happen & as i also damaged my Sprout with a risky experiment last year i not only had to replace burned chips but also ordered a spare Sprout after the motto better safe than sorry.

Much Love
Nicola
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