Particle M.2 SoM Evaluation Board

introduction

This is a breakout board for Particle's B series of cellular IoT modules. It breaks out all of its pins via easy to use headers.

features

The board features a USB ports for the nRF52840 MCU as well as the cellular modem, SD card connector, Ethernet connector, a barrel jack power connector, buttons, RGB LED, charge status LED, and a connector for a LiPo battery (battery not included).

technical details

Num	ID	Description
1	External Power	5-12 VDC. Minimum power requirements are 5VDC @500mA (when the LiPo battery) or 5VDC @2000mA (without LiPo battery).
2	LiPo Battery connector	Plug in the LiPo battery here.
3	SoM USB port	This is the module's main USB port that connects to the microcontroller.
4	JTAG connector	This can plug directly into the Particle debugger ribbon cable.
5	Battery switch	Controls power between the LiPo connector and the charge controller.
6	SoM power switch	Controls 3V3 power to the SoM
7	u-blox USB port	This USB port connects directly to the u-blox module for firmware updates.
8	Ethernet connector	RJ45 connector for twisted pair Ethernet, 10 or 100 Mbit/sec.
9	PoE connector	Connect for the Particle PoE adapter for power-over-Ethernet.
10	Cellular antenna	Connector for an external SMA connected cellular antenna.
11	Bluetooth antenna	Connector for an external SMA connected antenna for Bluetooth networking.
12	TF/SD Card	MicroSD card slot.
13	User LED	Blue LED connected to pin D7.
14	Reset Button	This is same as the RESET button on the Boron.
15	RGB LED	System status indicator RGB LED.
16	Mode Button	This is the same as the MODE button on the Boron.
17	Expansion Connector	Allows easy access to SoM IO pins.
18	Grove Analog Port	Connects to Seeed Studio Grove analog and digital boards.
19	Grove I2C Port	Connects to Seeed Studio Grove I2C boards.
20	NFC Antenna	U.FL connector for an NFC antenna (optional).
21	Jumpers J12	Enable or disable various features on the evaluation board.
22	SoM connector	M.2 connector for the Boron SoM.
23	Jumpers J13	Enable or disable various features on the evaluation board.
24	Power Jumpers	Enable or disable power from the evaluation board.
25	Charge LED	Indicate LiPo is charging.