I'm in the process of making a data logger using an Arduino and wanted to get some feedback from you guys. My plan is to use an Arduino Uno coupled with a bluetooth module (HC-06) and GPS module. The data off of the GPS module, along with some other data from my bike would then get sent over bluetooth to the Racechrono app.
I wanted to find out what I should be looking for in a GPS module. I found a couple breakout GPS modules that supported 10Hz refresh rate, one being the Adafruit Ultimate GPS and the other being the Navspark-GL.
For the folks going the DIY route for the data logger/monitors, what are you guys looking at when choosing GPS modules?