Particle Monitor One, Manual

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Tracker feature comparison
Tracker SoM Tracker M Tracker One Monitor One
Style SMD Module Module All-in-one All-in-one
Enclosure Your design Your design Included Included
MCU nRF52840 RTL8721DM nRF52840 nRF52840
CPU Speed 60 MHz 200 MHz 64 MHz 64 MHz
Maximum user binary 256 KB 2 MB 256 KB 256 KB
Flash file system
6
4 MB 2 MB 4 MB 4 MB
Base board Your design Included Included Included
Expansion connector Your design 8-pin M8 8-pin Multiple options
GNSS Antenna Your design
Int/Ext
2 Internal
Int/Ext
2
Cellular Antenna Your design
Int/Ext
2
Internal
Int/Ext
2
Wi-Fi geolocation antenna Your design
Int/Ext
5
Internal Internal
BLE Antenna Your design Int/Ext
5
Internal Internal
4
NFC Tag Your design n/a Included n/a
USB Connector Your design Micro B USB C
Micro B (Int)
3
System RGB LED Your design Included Included Included
External user button n/a n/a ✓
User RGB LEDs 2
SETUP and MODE buttons Your design On board Inside Enclosure Inside Enclosure
External power 3.9 - 17 VDC 6 - 90 VDC 6 - 30 VDC 6 - 90 VDC
SPI ✓ Expansion card n/a Expansion card
I2C ✓ Expansion card M8 Expansion card
Serial ✓ Expansion card M8 Expansion card
Internal temperature sensor Your design ✓ ✓ ✓
Battery temperature sensor n/a ✓ n/a ✓
Controlling charging by temperature Your design In hardware In software In software
1
On the Tracker One, the M8 can be configured for GPIO, I2C (SDA and SCL), or Serial (RX and TX)
on two pins.
2
Both internal and external GNSS and cellular are supported by physically changing the antenna
connector inside the enclosure.
3
There is no external MCU USB connector on the Monitor One.
4
The Monitor One uses the Tracker SoM BLE chip antenna on the board and does not include a
separate BLE antenna, but one could be added using the BLE U.FL connector.
5
The Tracker M uses a shared antenna for BLE and Wi-Fi geolocation. You can use the built-in trace
antenna or an external 2.4 GHz/5 GHz dual-band antenna, selectable in software.
6
A small portion of the flash file system is used by the system, and a configurable portion can be
used for store and forward, to optionally allow location publishes to be saved when the device is
offline to be uploaded later. The remainder of the flash file system can be used by user applications.