As my boards start to run out, I had to order new ones. On this occasion, I made some changes to the boards, mainly:
- The SD card can now be switched off via a small MOSFET. An SD card can draw a lot of power for battery-powered applications, so having the option to turn it off is nice. The MOSFET is connected to PA1 and is shorted via J5 per default, so the MOSFET isn't required.
- There's way more silkscreen text. The backside had free room which I used for some helpful labeling.
- Minor improvements of the layout, of course.
The overall look hasn't changed much from