RPi infrasound logger

Also see instructions from Masa-yuki-san.

Power

Powered using 12V 100Ah+ temporary battery with sunshield.

Localisation

Location of the instrument is NOT logged by the instrument itself. Do at least handheld GPS unit logging. AND if possible RTK relative positioning between the instruments at the same site.

Set up

• Remove transport padding from inside the box.
• Visually check cable connexions
• Feed 2.1 mm jack to inside the box.
• Place box under sunshield (South of the battery)

Plug in / Turn on

Plug in instrument box via 2.1 mm 12V jack to cigarette lighter plug.

Inside the box, screen will display its status:

• "GPS OK"
• "starting logging"
• "logging"

When you leave the screen should be on "logging".

Turn off

Simply unplug the power as there is no power down button (there is a small risk of SD card corruption).

Data retrieval

Option 1: ssh

• connect ethernet cable between RPi and laptop
• set laptop IP to some thing in the same range
• "mkdir -p ~/Hayabusa_collected_data/infrasound/instrument_ID"
• "rsync -a pi@192.168.1.56:~/data/ ~/Hayabusa_collected_data/infrasound/instrument_ID"
• you can use the opportunity to be connected to safely turn it off (if packing up at the same time): "ssh pi@192.168.1.56 sudo reboot", wait a couple of seconds, and then unplug.

Option 2: direct card read

• Take micro SD card out, plug it in a good brand card reader directly (avoid using micro SD -> SD adapter)
• "lsblk"
• "mkdir -p ~/Hayabusa_collected_data/infrasound/instrument_ID"
• "sudo mount /dev/sdX1" ~/rpi_data_mount
• "rsync -a ~/rpi_data_mount/home/pi/data/ ~/Hayabusa_collected_data/infrasound/instrument_ID"
• "umount ~/rpi_data_mount"
• Put micro SD card back into RPi (do not erase data)