My friend Sven (DL7AD) has recently made some improvements to my original Pecan Pico 3/4 design and we were mailing our plans back and forth. Since my PCBs are already running low I decided to also prepare a next PCB order according to this new layout. Since low voltage designs also require a low voltage programmer I thought it might be a good idea to fill in the rest of the available 10 cm with a custom USBasp programmer (see http://www.fischl.de/usbasp/). After programming, this part of the PCB can be simply broken away and used for later projects or for sniffing at the serial port for debugging. The PCB order is not yet sent out, so if you see mistakes, please send me a notification. The change in layout needs a few pins to be re-mapped, but in general it should work with the original Pecan 4 software already. The GPS has no longer its own voltage regulator. We’re planning to switch it off in software. Also the MAX6 or 7 GPS can be optionally connected to the serial port or to the I2C bus. I’ll upload this to my github as soon as I know that the design works.