Here you can find all schematics and PCB layout data for the
WizFi250-EVB and the WizFi250-H Interface adapter. On the EVB we use two
2x11 pin 50mil pitch socket and pin headers to make the WizFi250
removable. We put the SMD type WizFi250 module on a Interface adapter
board (that is than named WizFi250-H).
The pin headers have a distance of exactly 17mm.