Connectors

Type-C

J1: USB Type-C power connector

nRF52 Signals:

• USB_DETECT signal

Battery

J2 : 2-pin JST PH 2.00mm-pitch Battery connector.

Battery connector (J2) pinout

Pin	Signal	Description
1	BAT	Battery supply
2	GND	Ground

NFC

J3: U.FL connector for an external NFC antenna.

NFC connector (J3) pinout

Pin	Signal	Description
1	NFC1	NFC
2	NFC2	NFC

SWD

P1: 6-pin footprint for a Tag-Connect TC2030-IDC-NL In-Circuit Programming cable for the SWD interface of the nRF52832.

SWD footprint (P1) pinout

Pin	Signal	Description
1	VDD	Target VDD (Vsupply)
2	SWDIO	Serial Wire Data I/O (SWDIO)
3	NRST	Target Reset (nRST)
4	SWDCLK	Serial Wire Clock (SWDCLK)
5	GND	Ground
6	SWO	Serial Wire Output (SWO)

UART

JP1: 3-pin pin header for the UART interface of the nRF52832.

UART pin header (JP1) pinout

Pin	Signal	Description
1	UART_TXD	UART Transmit
2	UART_RXD	UART Receive
3	GND	Ground