I want to use a mini or nano or some such on a board I am making.
I need to have the ability to add a data logger and RTC at some point, but that will be more of a rare option. to that end, I want to install the board with holes for a data-logging shield. when I laid out the pro-mini, the connections between the two boards seems like there is no sense of alignment. then I realized the pro-mini was designed to be plug and play with the Basic-Stamp. so, I grabbed a NANO and found the I/O pins were aligned but the other pins, power, ground and such were not.
anyone know if there is some variant of small board that is directly pin for pin with a data logger/RTC sheild? I cannot use an UNO or full sized board and then stack. my case will not handle two stacked boards.