Hardware for Logging

Q&A forumCategory: QuestionsHardware for Logging
Naterater asked 2 years ago

I’m looking for inexpensive and simple hardware to do standalone logging of GNSS observation and interrupt messages only (ultimately extracting RINEX .obs and .nav files for Post-Processing). What do you recommend to make UBX files accessible by USB or Micro SD cards? What kind of configuration is necessary?

5 Answers
clive1 answered 2 years ago

I’m using these, among other things, https://www.st.com/en/evaluation-tools/32f746gdiscovery.html
Simple is perhaps not a term I’d use in this context, the coding is a bit involved. Programming a .HEX file isn’t hard.

Ardusimple Staff answered 2 years ago

Any datalogger that supports UART communication will do the work.
There are many available, here an example: https://www.sparkfun.com/products/13712

K2Logics replied 2 years ago

I’m using a raspberry pi with a 5″ screen in a waterproof box. Loaded RTKLib onto the RPi and configured the ZED-F9 to write logs over usb. Took a few nights of puttering at the bench, but outside of a script to simplify my log startup procedure, there as no coding involved.

PPascal replied 2 years ago

Is there an instruction somewhere about how this openlog logger connect to simpletrk2b ?

Ardusimple Staff replied 2 years ago

Note also that zed-f9p has own logging capabilities to the built-in flash. Check in the interface description document UBX-LOG-CREATE message.

K2Logics answered 2 years ago

oops, that was meant as an answer, not a comment to Ardusimple.’s response.

Ardusimple Staff answered 2 years ago

Another option, a customer just made us aware of it: Adafruit Grand Central M4 Express featuring the SAMD51 https://www.adafruit.com/product/4064 

steffendring replied 1 year ago

Buenos dias,
is the Adafruit Grand Central M4 Express also suitable for simply plug-and-play with the simpleRTK2B? Perhaps the customer could describe his progress/success!?
When logging to the built-in flash on the ZED-F9P can I read out via u-center or do I have to transfer directly to a logging board?
Thank´s a lot an have a nice day 😉

Ardusimple Staff replied 1 year ago

Hi Steffen,
For your information, the integrated logging capabilities of zed-f9p only allow to store positions, now RAW data. You can then download the logfiles directly with u-center.
Regarding logging capabilities, we will be launching in February an XBee SD card reader for plug-and-play data recording.