Field of View GeoSnap Basic Manual 6
microSD card slot
The microSD card is used to log events on-board the GeoSnap. The microSD card must be a 16 GB SanDisk Ultra
microSDHC UHS-1/Class 10 card. Spare microSD cards can be purchased directly from Amazon:
https://www.amazon.com/gp/product/B073K14CVB/ref=crt_ewc_title_dp_1?ie=UTF8&psc=1&smid=ATVPDKIKX0
DER
Session button
To safely end a logging session, press and hold the Session button (
≈
2 seconds) until the white, green, and red LEDs
turn solid. Once you have ended a session, you may start a new session by pressing the Session button once.
Control button
This button controls triggering according to the settings in the CONFIG file.
Retrieve System Information
To obtain information about the GeoSnap unit (carrier board serial number, firmware version, & bootloader
version), press and hold the Session and Control buttons while powering on the unit. Once the white, green, and
red LEDs turn solid, release the buttons and unplug power from the GeoSnap. Remove the microSD card, then use
a computer to read the system_info.txt file that was written
to the microSD card’s root directory
.
POWERING THE GEOSNAP SYSTEM
Battery Information
Two Turnigy 9XR 2200mAh 11.1V Li-Po batteries are included for powering the system. These batteries have built-
in undervoltage protection, which means that power will be cut from the output leads if any cell drops below 3.0V
(thus preventing damage to the battery). The advantage of using these batteries to power the GeoSnap (as
opposed to using power from the drone) is that the GeoSnap can keep logging and maintain GPS lock, even if the
drone’s
batteries needs to be swapped when mapping large areas.
Checking Battery Voltage
You can check the voltage of the entire battery and
it’s
individual cells by plugging
in the battery’s balance plug
into
the connector labeled “3 Cells” on
the included DC-4S charger/voltage checker (you can even do this while the
battery is powering the GeoSnap as depicted below).
A full battery has a total voltage of
12.6V
–
12.5V
. The battery is practically depleted once it has reached
10V
. A
fully charged battery can run the GeoSnap for about 8
hours
.
