Just a quick post… 
Yesterday I wrapped up the schematic and printed circuit board (PCB) design for the GPS clock, and built it. One software change was needed — in the course of laying out the pushbuttons, it worked better use to them in a different order (e.g., up was formerly button 1, it became #4). Thankfully that soft of change is trivially easy to make in software. Of course I built the board with a 6-pin AVR programming header to enable software changes. Continue reading GPS Clock Built
Tag: GPS
Leap Second 2015
Yay! I caught the leap-second
on my new, more sophisticated (alas still on a breadboard) GPS clock. Scope creep got the better of me, so I haven’t yet soldered up a permanent version, but it is coming. Continue reading Leap Second 2015
Prototype GPS Clock
I’ve cobbled together a quick prototype GPS clock from an Arduino UNO, SPI-driven LED display, and UBlox NEO-6 GPS module. Using parts bought on-line, this can be done for less than $20 USD. Continue reading Prototype GPS Clock