MIDI Sprout

Discussion (*ask your questions here!) => Questions => Topic started by: pelgrim on May 27, 2016, 11:36:35 AM

Title: PCB
Post by: pelgrim on May 27, 2016, 11:36:35 AM

I did a search, and indeed, found your information about it: http://support.midisprout.com/index.php?topic=17.0
Missed this completely.
So I made this topic to ask some questions about it.

you told me in that other topic:
"I can send you a soldering circuit board if you want to try and build it up."
This means you have them for sale ?
Can you give me the price of that (and for shipping to the EU)
Now that I have both hardware and software in working order,
it would be nice to clean things a bit up, a PCB would be one piece of that puzzle.

Some technical questions:
You refer to this board: https://oshpark.com/shared_projects/4GkxixPl
Like I see it, it would mean the microships have to be soldered directly to the board, or are there IC sockets available that fits ?
Soldering an oscillator directly on the board also seems risky to me.
I have little practical knowledge from my long gone school days, but I remember an oscillator doen't like heat all that much.

The other components are not all that sensitive I guess.
Title: Re: PCB
Post by: sam on May 28, 2016, 04:36:00 PM
For the circuit boards, I am having a very small run done from OSHpark for some workshop/kits, and I'd be happy to send you a board at cost+ship.  Since its so small and light I can probably pack it in a greeting card.  ping me --> sam at data garden dot org

Per soldering the chips, I like to use sockets whenever possible since it prevents the very common oops mistakes of putting the chip in the wrong direction.  If you double check your orientation, it should not be an issue to solder the chip(s) directly to the board.  All of the components can withstand the heat, the oscillator/clock included.  As you know, soldering requires a steady hand (and good ventilation!), and that is one of the reasons I didn't initially include a circuit board with the kit.

I will setup my soldering station and video an example construction to facilitate you and others who want to build up soldered circuit boards.
Title: Re: PCB
Post by: pelgrim on May 31, 2016, 01:49:35 PM
Sam, did you get my email a few days ago ?
Title: Re: PCB
Post by: alka on May 31, 2016, 02:14:46 PM
An alternative would be to use a Perma-protoboard allowing the build instructions to be directly transferred from the breadboard environment to the soldered world: https://www.adafruit.com/product/571
Title: Re: PCB
Post by: pelgrim on May 31, 2016, 04:02:20 PM
That too is a solution, but the placement of the connectors and potentiometer is not ideal.
Can't find how much shipment would cost to Europe on their site,
and I don't want to fill out all the forms just to find out that.
Title: Re: PCB
Post by: alka on May 31, 2016, 04:37:59 PM
I think i saw them on Amazon as well if that's an option. I just find them quick and easy to use... placement of LEDs, pots, jacks, etc. can be placed at your desire. Here's a pick of my build in progress. I 3-D printed a clear PLA (plant-based plastic) case and will be using these large LEDs so when illuminated the box glows internally.
Title: Re: PCB
Post by: pelgrim on June 01, 2016, 04:27:04 PM
just saw another option on kickstarter:
Title: Re: PCB
Post by: alka on June 02, 2016, 02:47:37 PM
Interesting concept!
Title: Re: PCB
Post by: sam on June 02, 2016, 11:31:44 PM
That stuff looks like playing 'Go', or perhaps some bubble sort algorithm!
Title: Re: PCB
Post by: sam on June 02, 2016, 11:34:35 PM
Brian, the translucent 3D print is a great idea, I'm sure it will look really sweet.