nRF52840 Dongle

Blecon Modem for Prototyping

The nRF52840 Dongle is a cheap and widely available USB dongle with an nRF52840 onboard.

Pinout

Pin Label	Name	Function
GND	GND	Ground
VBUS	VBUS	USB Power supply
VDD OUT	VDD	nRF Embedded Regulator Output
1.13	RX	UART RX
1.10	TX	UART TX
0.02	CTS	UART Clear to Send
1.15	RTS	UART Ready to Send
0.09	NFC1	NFC antenna connection
0.10	NFC2	NFC antenna connection

Pin Label

Name

Function

GND

Ground

VBUS

USB Power supply

VDD OUT

VDD

nRF Embedded Regulator Output

1.13

UART RX

1.10

UART TX

0.02

CTS

UART Clear to Send

1.15

RTS

UART Ready to Send

0.09

NFC1

NFC antenna connection

0.10

NFC2

NFC antenna connection

Please note that the Blecon Modem firmware configures the onboard regulator to output 3.0V, and pins to operate at the 3.0V level. However some other firmware might configure those differently (1.8V).

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Last updated 6 months ago