This is exactly what I've been looking for

J
Josh posted Oct 19, 00:04:

This is exactly what I've been searching for (although to be honest, I'd ideally not have to build it myself..!)

So a few questions:

  1. What is the latency like?
  2. How easy is it to build? Would I have to buy a soldering iron? I just have screwdrivers and stuff. I am "good with my hands" but only have very basic electronic experience.
  3. Does it really work straight out of the box (with the flash image)?
J
Josh posted Oct 19, 00:14:

More questions:

  1. Is there a circuit diagram for Raspberry pi 3?
  2. How well does the beta ISO image for raspberry PI 3 (here: http://www.samplerbox.org/article/summer2016news#disqus_thread) work?
J
Josh posted Oct 19, 00:26:
  1. Are there any super clear instructions for idiots for both software and hardware out there anywhere? I'm probably going to give this a go, but as it's my first project, I want to do it as simply as possible.

previous projects here http://www.stencyl.com/game/play/34430 (videogame)
and here https://vimeo.com/74700300 (music video)

A
AlexM posted Oct 19, 00:48:

Hey Josh,
Neat project huh!

  • Latency is negligible, ~2-5ms.
  • If you tweak the midicallback section in the samplerbox.py you can get away with no soldering at all and navigating presets with a midi controller.
  • Should work straight out of the box! (it's been a while since I started from scratch). I'm using a RPi3 - the installation on my SD card was compatible between my Pi2 and Pi3.
  • If you want to go a little further, Hans has some very good instructions for his modifications: http://homspace.xs4all.nl/homspace/samplerbox/index.html
J
Joshua Rackstraw posted Oct 19, 01:01:

Hi alex, thanks for your reply. I could probably borrow a soldering iron from a friend. Is the circuit diagram the same for the raspberry Pi 2 and 3? I'm not sure what difference there is...

A
AlexM posted Oct 19, 01:19:

I'm pretty sure it's the same for RPi2 v RPi3. Hans' connections to the GPIO worked for me (I think his project is on a Pi2).

I'm very much the same as you - limited experience with electronics, but I got a grasp of it pretty quick ;) ps I hope you're not planning to solder the Pi itself!

J
Joshua Rackstraw posted Oct 19, 16:01:

I bought everything I need, but i didn't get the breakout microUSB for power because I couldn't find one that wouldn't involve soldering (and i think I can do the whole thing without soldering, which is great).

My question is, what does that secondary microUSB actually power? I see the raspberry PI 3b already has a power input. So..?

A
AlexM posted Oct 20, 00:55:

If you're following Joseph's instructions, that breakout microusb is just so it can be positioned where desired on the box, so it's not necessary for it to work

J
Josh posted Oct 24, 21:36:

I am stuck on this. I am using a power supply that came with a raspberry pi kit (should be powerful enough!) but i'm still not getting any power to the USB slots. Any help for a total beginner?

J
Josh posted Oct 24, 22:08:

The power supply, which was sold as "power supply for raspberry pi 3 is DV5V 300mA. That's not powerful enough, is it?

J
Josh posted Oct 24, 22:45:

Got it!!! OS wasn't installed properly. I can't recommend the open-source programme "etcher" for installing IMGs to SD cards. Worked perfectly on my mac.

Here are a few things I'd like to change.

  1. Some distortion going on, seems hard to predict when (has to be software, it's too unpredictable to be a hardware problem). I am using an USB DAC.
  2. The automatic pitching up (if you just put it one sample, for example) doesn't really work for me in the situation and I know i'm going to get confused about that later.
  3. I need to get a screen and some buttons.
  4. and make a case!

I am very impressed!!!!!!!!

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