Day 81 of #PCBs - Working on an updated template for #Protonema stamps.
Improvements include:
* Indicates that it is a Protonema stamp
* Version now beside part number
* More space for the stamp name
* Includes a QR code
* Includes a layer legend
* Power indicators take less space
Not 100% happy with this yet, but it's getting closer to what I'm looking for.
Day 82 of #PCBs - Here's a simple little breakout board for the PCF8584, using the new template.
This will require some bi-directional level shifters to interface with a Pi Pico, but two 1115-0101 boards should suffice.
Not looking forward to writing the firmware to drive this part, though. Lots of complexity there, and I'll likely have to break out the big logic analyzer.
VE7FIM