I noticed that most of the Adafruit QT Stemma i2c devices have a common pinout and a common wire harness. Just a quick little adapter enables tapping into a who architecture of toys off of a badge.
Details
Some easy wins here, but the pinouts are not as similar as one might hope.
Still, poc on a perf going well. Just might need a lil more assistance from hand soldering or jumpers for the variances
Davedarko was way ahead of me. He has a perfect little board that breaks out the pins for an add-on module.
The modules I have been eyeballing have the pins swapped, so I stole his work and modified it including removing the nice calendar silkscreen and adding a header for swapping data and clock. I also move vcc to the end because more of those are available on the adafruit modules I have coming. I sent off an urgent order to OSHpark since I am in PDX and I think they can pull this off in time.
I have no idea if there will be room for the headers on front or on back. May need to solder blob it.
I sort of expect this to be either a duplicate of someone else’s work and I’m just making notes for myself, or I’m just lazier about this hack than anyone would have ever imagined.