What’s a “spaced pair”?
I think I’ve used 20-25 Pixelblaze, and replacing one in-place from V2->V3 never happened, but I did use the sensor board pinout compatibility often, and continue to appreciate the stacking options.
I’ve never minded the solder pads. Most of my projects don’t use them. When I have, they seem easy to solder to. I use the IO pins on the header more often.
In one project I did miss the third mounting hole v2 had, once. It felt more secure against bumping. Rare though.
Hardware wise, I think I’d most enjoy in an XL:
- 12V feedback capable (onboard buck?), like the Pro Expander. WS2815s have become popular.
Pluggable screw terminals by default. I’m always soldering up an array of JST-SM 3 and 4 position “adapters” to swap something, ground my backup data, or make 3-position strips just adapt to the 4-position JST I like to leave on all my Pixelblazes. I don’t love re-screwing because I’m afraid I’ll short something.
- Is there already a PTC or other over-current protection for Board → Strip power?
- External WiFi antenna plug
- Onboard status RGB LED that I can send data to, IE blink or color myself
I can say with confidence though, that if there were some clever enclosure kits sold on Tindie, I would probably purchase them with my PBs frequently. Clever would be like:
- Accepts a sticky label easily, or smooth wet-erase surface on top
- Smooth backing for velcro / tape / sticky foam / VHB / command strip adhesion.
- Opposite corner tabs with holes for screw/nail/hang mounting
- PB snaps in on mounting posts, and is removable with moderate force
- Thin knockouts to reveal USB or header via X-Acto
- Accepts sensor board default stack above
- Extends button to enclosure surface
- Translucent for status LED, or small hole
- Tested for WiFi effects (I can accept degradation, just want it known before)
- Some clever option for DIY ingress protection. For example, on Picos I like the clear heat-shrink sleeve with a shot of silicone or hot glue at the entrance around the wires (and heat-seal the far side).
@Scruffynerf I agree that getting sensor board data to the Pico is not as convenient, but what’s the use case where you really need the Pico’s tiny-ness, but also have space for a sensor board?