Particle Tracker One, Manual

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1
When disassembling the Tracker One, be careful when removing the lid. The NFC antenna and
LiPo battery are mounted on the lid, and the NFC antenna cable is short. Carefully remove the NFC
U.FL connector before fully removing the lid of the case. Reconnect to (9).
2
The USB-C connector is normally connected to the nRF52840 MCU. It can be connected to the
GNSS module by using the USB-C switch (17).
3
The normal state is 1-4 OFF and 5-6 ON to connect the USB to the nRF52840. To connect the USB-
C to the u-blox GNSS, turn 1-4 ON and 5-6 OFF. Disconnect the USB-C and the LiPo battery before
changing the switch settings.
4
The JTAG connector is not populated at the factory. The connector is a Samtec FTSH-105-01-F-DV-
K 10 position (2x5), 1.27mm pitch.