So for some work related stuff i have been working with gps in an application with race cars I have to make a custom board up for this at some stage and thought I would make a windsurf style gps to test things out . It uses a ublox 7 and a samd 21 so has plendy of power to calculate things while sailing , it also has sd card for logging and an oled screen to display. Ill get a small round case machined soon with the aim to make it actually waterproof none of this bull**** ip rated stuff that you pick up with a wet and and distroy the whole thing im aiming for put it in the washing machine and not have any leaking.Still need to check its function some more but it seems good so far. The cool bit is that i can easily write code to show what i want like nm , 10 sec and so on, The only thing im not sure how to go about is alpha if any one has any tips on that.