blue PiraT Mini
User Guide
Datum: 14.12.2018
Seite 17 von 60
blue_PiraT_Mini_UserManual_V3.4.1.doc
7.4 Micro-USB port
The front Micro-USB port can be used in host-mode.
It can be used for logging data to an external storage or for connecting a GPS, mobile phone or
Wi-Fi module to the logger. Wi-Fi can be used to get access to the logger over the client or to
use the feature
Telemotive Live View
.
From firmware version 03.04.01, Telemotive data loggers also support logging data from units
which communicate over
Android LogCat interface
via USB.
7.4.1 USB storage:
Requirements:
Size
At least 4 GB (or a partition at least with this size)
Free memory
At least 3 GB for the circular buffer (only for parallel recording)
File system
FAT32, NTFS or ext4
USB
Version 2.0 (partly USB 3.0 memory is also supported)
You could connect USB flash drives and external hard drive up to a maximal supply current of
500 mA. External power supplies must not be connected to the hard disk.
If the USB memory is pulled in the operational state, the following problems exists:
The logger is in an undefined state and will not record any data.
Only after rebooting the device behaves as expected.
The data on the USB memory can then be unreadable when it is removed during a write
operation.
If you turn off the blue PiraT Mini with the
[ON / Trigger]
button, you have 5 seconds to remove
the medium before the logger can be reawakened.
Note:
Telemotive AG recommends the testing of every external storage before using it in a
measurement. We suggest that especially USB devices with USB 3.0 are sometimes not
recognized by the system.
