Is there any difference in performance with the raspberry 3b vs b+ for this project?

Hiya, I’ve had the shield for about a month and my encoder 3 stopped responding mid-use a couple days ago. Tried cleaning the board and reflowing the solder incase something got in there or dislodged… that didn’t have any effect. I’ve had some of the buttons and encoder not respond right away before but usually they just require a bit of encouragement. Don’t know if that’s cuz of my not great soldering job, or if it’s unrelated… picture below of behind the encoder if it’s relevant. Any advice on troubleshooting this would be greatly appreciated :’(

Summary

A photo of the top side RasPi header pins might be helpful (to see if there’s something obvious with regards to soldering there)

Also looking at that picture - your display pins could use a little more love (i.e solder)

1 Like
Summary

didnt reflow these—I suppose I should? didnt wanna mess with the display pins cuz havent had any problems with the display so I figured it could only hurt :joy:

yeah - i’d give those some more love. :grin:

Probably a good idea to repost this again: https://learn.adafruit.com/adafruit-guide-excellent-soldering/common-problems

tools_Header_Joints

3 Likes

welp, i got em all lookin like the “OK” pics (thanks for sharing that by the way, very helpful to have on hand while in the act~), gave the display pins some love too and cleaned em all up… not sure if more pics are warranted or if pics of other parts would be useful.

recent things that may or may not be relevant? but are all I can think of...
  • I did hook up a bleached that was giving me some problems. Although I’m fairly certain I had all the issues with the bleached resolved prior to plugging it into norns, there is still a bit of grounding weirdness if I use the pots without knobs. Had it working with the norns though, and wasn’t using it at the moment that the encoder died. In fact I’ve used the bleached with it since the encoder died, as replacement controls, lol.
  • new power supply—now plugging the USB directly into a surge protector that has USB charging ports, instead of the wall plug/phone-like usb power. voltage and mA seemed appropriate, purchased from a reputable source.

Is this amazon link a good place to buy the raspberry?

First glance, yes it will work. No it’s not the best price.

1 Like

Kind of like that no example is any better than ‘OK’ :smiley:

1 Like

Got mine from Chicagodist.com

1 Like

Do you know if those heatsinks are needed? I havent seen them in shields builds

please do not buy from amazon

get them from adafruit or newark

14 Likes

would it be possible to add some kind of layer that transcribes all grid.led signals to max them so that really any monobright grid could be used with norns scripts or will each script need to be done individually?

got mine from microcenter

Ok, will do.
I have to guess that heatsinks are not necessary for the Shields, right?

you definitely don’t need heat sinks

2 Likes

I just bought a second hand one from CEX, hope it even works :-/

1 Like

Hi all - should WiFi work on these? I bought a built one. WiFi doesn’t seem to work.

please describe what you’ve tried already

more detail will make it easier to troubleshoot…for example do you have a wifi dongle?

the built-in wifi should work. what are your router settings and what have you tried?