Particle ONE402MEA Manual page 6

POWER AND I/O CONNECTOR (M8)
M8 Pin Function
The IP67 M8, 8-pin, male pins with threaded barrel connector is accessible from the outside of the
enclosure.
View as looking into the M8 connector on the outside of the enclosure.
Note: Version 003 and earlier of this datasheet had a different pin numbering for M8 connector
that didn't match the connector manufacturer's numbering. Only the numbering has changed;
the function of the pin at a given location is unchanged and the change should not affect existing
designs.
1
MCU GPIO is limited to 3.3V maximum.
2
CAN Bus specifications can be found in the Tracker SoM datasheet.
3
6.0 to 30 VDC at 2A when using the M8 connector. 6.0 - 90 VDC at 2A when connecting directly to
the board.
4
5V, 370 mA maximum. Controlled by the CAN_PWR GPIO.
Additional information on M8 cables and connectors can be found in the
Datasheet.
You must enable CAN_5V in order to use GPIO on M8 pins 3, 4, and 5 (A3, D9/RX/SDA, D8/TX/SCL)
on the Tracker One. If CAN_5V is not powered, these pins are isolated from the MCU starting with
version 1.1 of the Tracker One/Tracker Carrier Board (September 2020 and later). This is necessary to
prevent an issue with shipping mode, see technical advisory note TAN002.
Note that CAN bus is differential and consists of two lines:
Function
1 CAN_P / CANH
3
2
VIN
3 Analog A3
4 Serial1 RX Wire3 SDA GPIO D9
5 Serial1 TX Wire3 SCL GPIO D8
4
6
CAN_5V
7 CAN_N / CANL
8 GND
Function I/O Color
2
Yellow
IO
I Red
1
GPIO D3 White
IO
1
Green
IO
1
Brown
IO
CAN_PWR O Orange
2
Blue
IO
Black
M8 Accessories