nRF Sidewalk EB shield

The nRF Sidewalk EB shield is a Nordic Semiconductor expansion board for the nRF54L15 DK and nRF54LM20 DK.

Overview

The shield mounts on the DK expansion port. It includes an LR1110 radio module (LBAA0XV2DT) with LoRa, Wi-Fi, and GNSS antennas, and a status LED.

nRF Sidewalk EB shield

Supported boards

Use one of the following board targets when building with this shield:

• nrf54l15dk/nrf54l15/cpuapp

• nrf54l15dk/nrf54l15/cpuapp/ns

• nrf54l15dk/nrf54l10/cpuapp

• nrf54lm20dk/nrf54lm20a/cpuapp

• nrf54lm20dk/nrf54lm20b/cpuapp

Pin assignment

Control signals follow nordic_expansion_header pin indices from the shield devicetree. SPI uses the nordic_expansion_spi bus on the DK. Pin mappings differ depending on the development kit you are using.

nRF54L15 DKnRF54LM20 DK

nRF Sidewalk EB shield on nRF54L15 DK

Expansion pin	Function	SoC pin
6	LR1110 SPI MOSI	P1.06
7	LR1110 SPI MISO	P1.07
8	LED	P1.08
9	LR1110 GNSS LNA	P1.09
10	LR1110 SPI NSS	P1.10
11	LR1110 SPI SCK	P1.11
12	LR1110 NRESET	P1.12
13	LR1110 EVENT	P1.13
14	LR1110 BUSY	P1.14

Requirements

Mount the shield on the correct expansion header and avoid pin conflicts with on-board DK peripherals. The following constraints apply to the nRF54L15 DK.

nRF54L15 DK

Connect the shield to the Port P1 expansion header. Several on-board DK resources share pins with the LR1110 and are unavailable while the shield is connected:

• Do not press Button 0 (P1.13), Button 1 (P1.09), or Button 2 (P1.08) while the shield is connected. These pins are used for LR1110 EVENT, GNSS LNA, and the shield LED, respectively.

• LED 1 (P1.10) and LED 3 (P1.14) share pins with LR1110 SPI NSS and BUSY and are unavailable while the shield is connected.

• Do not enable UART20 hardware flow control. RTS and CTS are routed to P1.06 and P1.07, which are used for SPI MOSI and MISO.

Programming

Set -DSHIELD=nrf_sidewalk_eb when you invoke west build. For example:

west build -b nrf54lm20dk/nrf54lm20b/cpuapp --shield nrf_sidewalk_eb samples/sid_end_device