Update 28/08/15, New version more light:
*The last and final design, the Teensy and GPS is directly powered from 3.7v li-on batt, 20 hours 5hz logging, 39g heights with IP4 box.
Update 23/07/15, New firmware, feature added:
*Logging data only when the speed is above 3 km/h
*Using var usb_configuration; to detect and enable charging automatically when the board is plugged on a computer (only pc, not Ac adapter).
Update 12/02/15, I have rewrite the sketch:
– The sketch is more clear, light and compact, 3.76ko from 5.07ko comparing old sketch.
– Use TinyGPS lib, so you can select what we want to log.
– Create a .CSV file directly, you can use import function from GoogleEarth PRO (good news, Google has released it for FREE right now).
The goal
In the past two years, i have released two version of GPS logger, with a lot of default like, poor autonomy, need to take off the sdcard to get the log, no function to upgrade the code easily, by the way, i have redesigned a new version with a lot of news feature, see bellow.
– Better autonomy.
– Be lightweight and wearable.
– Be rechargeable easily.
– Got log directly from USB.
– Upgrade code via IDE Arduino through USB.
– Future options implemented for improvement.
– Water Resistant IP4.
