nRF52840 DK

Blecon Modem for Prototyping

The nRF52840 DK is the reference development kit for the nRF52840.

Pinout

The nRF52840 DK exposes the Blecon modem serialisation interface over USB and a physical UART port as below.

Pin Label

Name

Function

GND

Ground

5V Power input

P1.01 (D0)

UART TX

P1.02

UART RX

P1.03

RTS

UART Ready to Send

P1.04

CTS

UART Clear to Send

When using the nRF52840 DK as an external modem with a separate board, it is recommended to power it from an external 5V source using the 5V pin, and move SW6 to 'nRF only'.

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Last updated 5 months ago