Nordic Semi Category - CNX Software - Embedded Systems News

August 18, 2026August 18, 2026 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

LILYGO T-Echo Lite Kit adds a keyboard shield to the nrRF52840-based ePaper LoRa and GPS development board

LILYGO T-Echo Lite Kit is a Nordic nRF52840-based LoRa + GPS development kit with a built-in keyboard that enables direct off-grid communication without a smartphone. The kit is not entirely new since it’s based on the T-Echo Lite devkit introduced last year, to which the company has now added a keyboard shield with backlit alphanumeric keys, audio support via a 3.5mm audio jack and a built-in speaker, and a vibration motor. LILYGO T-Echo Lite Kit specifications: LILYGO T-Echo Lite Core module SoC – Nordic Semiconductor nRF52840 CPU – 32-bit Arm Cortex-M4F microcontroller @ 64 MHz Memory and storage – 1 MB Flash, 256 KB RAM Wireless – Bluetooth 5, Thread, ANT, Bluetooth Mesh, 802.15.4 (Zigbee), 2.4 GHz proprietary LoRa transceiver – Semtech SX1262 with global coverage support: 433 MHz, 868 MHz, 915 MHz, 923 MHz Power management circuitry Display – 1.22-inch SPI e-paper display with 192 x 176 resoltion (GDEM0122T61) […]

August 8, 2026August 8, 2026 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

LILYGO T-Echo Card – A weatherproof, solar-powered, nRF52840-based LoRa + GPS development kit

LILYGO T-Echo Card is a thin development kit based on Nordic Semi nRF52840 wireless MCU and a Semtech SX1262 LoRa transceiver with a solar panel for charging an 800 mAh battery. It supports Bluetooth 5, NFC, Bluetooth Mesh, ANT, 802.15.4 (Zigbee/Thread), LoRaWAN, and GNSS (L76K module) connectivity. The board also features a 0.42-inch OLED information display, a magnetic USB interface, a 9-axis motion sensor, a digital microphone, a speaker, and an RGB LED for status/notifications. It’s mainly useful for off-grid communication (text and audio), GNSS location sharing, personal/asset tracking, and as a compact mesh network node. T-Echo Card specifications: SoC – Nordic Semiconductor nRF52840 CPU – 32-bit Arm Cortex-M4F microcontroller @ 64 MHz Memory/Storage – 1 MB Flash, 256 KB RAM Wireless – Bluetooth 5, NFC, Bluetooth Mesh, 802.15.4 (Zigbee/Thread), ANT, 2.4 GHz proprietary Storage – 32 Mbit SPI flash (ZD25WQ32CEIGR) LoRa transceiver – Semtech SX1262 with global coverage support: […]

July 29, 2026July 29, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

SensWear – An open-source modular Nordic nRF54L15 development platform for wearables

SensWear nRF54L15 wearables development platform

SensWear is an open-source hardware development platform for wearables based on Nordic nRF54L15 Bluetooth LE SoC and a range of sensors designed for researchers, developers, and companies building smart rings, wristbands, patches, and other custom devices. The solution is mainly comprised of flexible boards, including the SensWear core board with an nRF54L15 MCU and a 6-axis IMU sensor, and daughter boards with either PPG and optical sensing, temperature sensing, capacitive touch sensing, or haptic feedback. SensWear key features and specifications: Core mainboard SoC – Nordic Semi nRF54L15 CPU Arm Cortex-M33 @ up to 128 MHz RISC-V coprocessor for “software-defined peripheral” Memory – 256 KB SRAM Storage – 1.5MB Non-volatile Memory (NVM) Wireless Bluetooth LE 6.0 Thread, Zigbee (IEEE 802.15.4-2020) Matter Amazon Sidewalk Proprietary 2.4 GHz protocols with a new 4 Mbps mode NFC support Sensors Bosch BHI360 six-axis smart IMU and sensor hub Standardized interface for interchangeable daughter boards I2C and […]

July 23, 2026July 23, 2026 by Debashis Das - No Comments

Icy Electronics nRF54L15 Discovery devboard integrates a snappable nRF52820 CMSIS-DAP debugger

nRF54L15 Discovery Devboard (+ nRF52820 CMSIS DAP)

The nRF54L15 Discovery is a compact wireless devboard with an onboard nRF52820 CMSIS-DAP debugger/programmer for Bluetooth LE, Thread, Zigbee, Matter, NFC, and other 2.4 GHz IoT applications. Its snap-apart design allows the target and interface MCUs to be used as two standalone boards. In the past, we have written about various development boards based on the Nordic nRF54L series, including the Seeed Studio XIAO nRF54L15, XIAO nRF54LM20A (Sense), and the nRF54L15 Connect Kit. The nRF54L15 Discovery board further integrates a snappable nRF52820 CMSIS-DAP debugger/programmer section. It also includes an nPM1300 PMIC with 32–800 mA LiPo battery charging and USB-C PD support, along with a TPS63900 buck-boost converter configurable for 1.8V or 3.3V I/O operation. nRF54L15 Discovery specifications: Wireless MCU – Nordic Semi nRF54L15 wireless SoC CPU Arm Cortex-M33 @ up to 128 MHz RISC-V coprocessor for “software-defined peripheral” Memory – 256 KB SRAM Storage – 1.5MB Non-volatile Memory (NVM) Wireless Bluetooth […]

July 21, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

nRF54L Arduino Core project brings Arduino support to Nordic Semi nRF54L wireless SoCs

nRF54L Arduino Core is an open-source project designed to bring Arduino support for Nordic Semiconductor nRF54L wireless SoCs, starting with Seeed Studio’s XIAO nRF54L15 (Sense) and XIAO nRF54LM20A (Sense) boards, as well as compatible Holyiot nRF54L15 modules. Since the launch of the nRF52840-based Arduino Nano 33 BLE board in 2019, Nordic nRF52 wireless microcontrollers have been officially supported by the Arduino IDE. However, it’s not quite the case for the newer nRF54L Cortex-M33 microcontrollers. Lolren has decided to change that with the unofficial nRF54 Arduino core project. nRF54L Arduino Core highlights: Dual-core access – Use the 128 MHz Cortex-M33 application CPU and the VPR RISC-V coprocessor without adopting a vendor RTOS Wireless Bluetooth LE support – Peripheral, central, dual-role, GATT server/client, HID, BLE UART, PHY/DLE/MTU control, LE Secure Connections, bonding, OOB, Numeric Comparison, privacy/RPA, and CSRK signed writes Experimental support for Zigbee – Partial stack and device demonstrations; incomplete Zigbee […]

July 13, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

WisMesh Station Review – Telemetry, MQTT, and Grafana tested on a Raspberry Pi 4-based Meshtastic gateway

RAKwireless has sent us a sample of the WisMesh Station, a Meshtastic gateway and base station based on a Raspberry Pi 4 Model B, a WisMesh Pi HAT RAK6421 expansion board, a LoRa module, a GNSS module, all housed in a compact metal enclosure. It comes with meshtasticd preinstalled, making it ready to use right out of the box. Just unbox it, plug it in, and start using Meshtastic immediately. We’ll also use software packages for communication, data storage, and visualization, such as MQTT, Node-RED, InfluxDB, and Grafana, mostly following RAKwireless’s user guide WisMesh Station is available in 2 models according to transmit power: the standard RAK8622 model that uses the RAK13300 LoRa module (Semtech SX1262 with 22 dBm transmit power), suitable for urban networks where nodes are close to each other, and the high-power RAK8623 (HP) model that uses the RAK13302 module (SX1262 + SKY66122 amplifier circuit with 30 […]

July 9, 2026July 8, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Norik Systems introduces nRF9151-based USB Dongle for DECT NR+ deployments

Norik Systems has developed a compact USB dongle based on Nordic Semiconductor’s nRF9151 SiP, mostly designed to work as a DECT NR+ child node or a USB-powered gateway. As a reminder, DECT NR+ is a non-cellular 5G standard for long-range low-power applications that works at 1.9 GHz and supports up to one million nodes through mesh, star, and point-to-point topologies. The Norik USB dongle enables developers to easily add DECT NR+ to gateways or child modes. Norik Systems DECT NR+ USB dongle specifications: Wireless System-in-Package – Nordic Semi nRF9151 CPU – Arm Cortex-M33 @ 64 MHz Memory – 256KB RAM Storage – 1MB flash Connectivity Multimode LTE-M/NB-IoT/NB-NTN modem with DECT NR+ support and GNSS. 700-2200 MHz LTE band support. Power Class 5 20 dBm Power Class 3 23 dBm 1.9 GHz and 915 MHz DECT NR+ band support (1, 2, 9, 22) Security – Arm TrustZone + Arm CryptoCell 310. […]

June 30, 2026June 30, 2026 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

XIAO nRF54LM20A (Sense) board enables ultra-low-power Bluetooth 6.0, Matter, Thread, Zigbee, or 2.4 GHz proprietary applications

Seeed Studio XIAO nRF54LM20A and XIAO nRF54LM20A Sense are tiny USB-C IoT boards based on Nordic Semiconductor’s nRF54LM20A wireless SoC offering Bluetooth 6.0, Matter, Thread, Zigbee, NFC, Amazon Sidewalk, and 2.4 GHz proprietary connectivity. Both variants come with on-chip 2 MB flash and 512 KB RAM, as well as an 8 MB flash, an nPM1300 PMIC for power management, up to 28 GPIOs, and an RGB LED. The Sense model adds a digital microphone and 6-axis IMU with motion-triggered wake-up for ultra-low power applications. XIAO nRF54LM20A (Sense) specifications: Wireless SoC – Nordic Semiconductor nRF54LM20A CPU Arm Cortex-M33 application processor clocked at up to 128 MHz RISC-V coprocessor running at 128 MHz Memory – 512 kB of RAM Storage – 2 MB of Non-Volatile Memory (NVM) Wireless Bluetooth LE 6.0 with PHY rates of 125 kbit/s, 500 kbit/s, 1 Mbit/s, and 2 Mbit/s Bluetooth Channel Sounding, Bluetooth LE long range (coded PHY), […]