i would prefer if we can find someone closer (wherever you are), shipping costs, possible import duty & GST in NZ (not sure if this applies to servicing, will need to investigate), plus i don’t really wanna add to each devices carbon footprint too much.
suggest adding you location and grid size to your post to help the process along.
that said, I can probably service devices in NZ.
I may have over-exaggerated this point. its not really more difficult than a 1.27mm pitched IC. the de-soldering is a little tricky at first though.
this was my intention, and to not send too much of the old device to the landfill. it certainly would have been easier to just redesign the whole keypad PCB. but would be less universal across devices, more expensive, and wasteful.
it should work with everything the current devices do.
no idea, i’ve never seen the inside of those. i presume they are using a different driver… we can look into it.
technically these will be slightly dimmer than the originals. i don’t think its noticeable though. the maximum output current is about 90% of the max7219 i think. i will confirm this.
the package is a 10 x 15mm SOIC 1.27mm pitch. it ended up being around 1mm longer to one end than the max7219, a fact that saddens me very much. i’ll share some photos of the driver soon.
