#899

eesh, maybe. that exposed copper is likely the ground plane of that side of the board. if any of those solder joints are touching that copper then you’ll get shorting to ground. that could very well be the issue - the ninth and tenth pins in the bottom row, counting from the right, are for encoder two, for instance, and they look like they might be grounded right now. a multimeter will tell you what is going on.

2 Likes
#900

Hello again, Norns newbie here. Wanted to ask which specific Raspberry Pi boards work and/or not work with the Norns - does any Raspberry Pi board work?

At the lab I work at that I’m building some Norns in, we have a few “Pi 2 Model B v1.1 (2014)” - would those work?

Again, many thanks. Sorry for the super basic questions.

#901

my multi norns dreams came true :slight_smile:

image
image2838×3330 1.31 MB

image
image2852×2852 1.01 MB

17 Likes
#902

welcome!

3b or 3b+ are the only supported boards. some folks have experimented with pi4’s, rolling their own image, but the easiest and most direct route will be a 3b or 3b+.

2 Likes
#903

So good news. Two out of the three encoders work, working on getting E3 on the board to work. I’ll figure out how to fix the exposed ground later

#904

You might be able to use nail polish or conformal coating to seal it up – conformal coating is designed to disappear if you solder it. nail polish probably makes it more difficult to repair but it will be more resilient and cheaper.

1 Like
#905

The Norns now works perfectly.

7 Likes
#907

i forgot to post it anywhere! just uploaded it to youtube - simple midi keyboard test using molly the poly

3 Likes
#908

has anyone ever shorted out their screen?

#909

if your screen is not working, it’s much more likely that there are bad solder joints that just need to be reheated.

#910

Thanks, I’ve tried it several times and it never resolves the issue unfortunately. might just desolder and try another header

#911

MAJOR PROPS to wheelersounds !!

They offered to build me a Shield kit fee free out of the kindness of their heart. A super duper great member of the community here. Thanks again Nate!! The Shield works flawlessly. This thing is so much fun. Cheers

3 Likes
#912

so my shield boots up with an error: supercollider fail…

the screen, controls, and menus work okay, I’ve connected to wifi, updated to v200604, and tried a ‘;restart’ from maiden. no help.

I’ve seen from other posts here that the Clock or Audio chips might be the culprit. I’ve tried to reflow and then to remove the chips with wick/sucker but no luck. I’m guessing the clock is the culprit, but i’ve no idea how to remove it from the board… any ideas?

Don’t know if this picture is of any use (best I can do in focus)

IMG_3538
IMG_35381888×1396 1.28 MB

(I really didn’t think my soldering looked that bad until I saw this close up!)

1 Like
#914

Is there a short between C11 and C13? I can’t see any other faults from your pic, but I am no expert : /

#915

Good shout, thanks! – there does seem to be! For some reason, I thought there was a bridge there. If my (limited) schematics reading is right, there shouldn’t be?

#916

Hi!
new to Norns here! …after a painful payment of customs fees (85€)
it was a piece of cake to solder and setup, you can hear my first records directly from Tape:


only one thing missing, installed Orca from Maiden, and i get “error: init” , the system is just installed, so i dont know waht happen.

2 Likes
#917

that’s not a problem, they’re both connected to AGND, and the blob of solder has just hooked onto a via between them.

I think the likely problem is the crystal, because it’s 180º out of orientation. See the dot on the crystal? Should be in the same corner of the component as the dot on the big IC (which is soldered correctly). Ie, in the picture you’ve shown, the dot should be “top right”.

Removing it is… a faff without hot air, but doable. Get an iron hot, and just work your way around the four corners, trying to push it underneath. Get it hot, melt it, move around, and just keep working around in a gentle circle. Eventually you might be able to maneouvre it off.

2 Likes
#918

is orca on the newest version?

#919

Tried to update from Maiden, It says is Up to date

#920

Thanks for the tip! But, urggh, been at this a while now and just can’t get the crystal to budge. I thought I’d been careful lining up pin 1! Think it’s probably time to think about a new PCB+BOM :cry: