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March 27, 2025March 28, 2025 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

emCraft SOM-NRF9151 – A Nordic Semi nRF9151 System-on-Module with LTE-M, NB-IoT, DECT NR+, and GNSS

Better known for its Linux and uCLinux-powered system-on-modules, emCraft has just launched the SOM-NRF9151 system-on-module powered by a Nordic Semi nRF9151 Arm Cortex-M33 SiP (System-in-Package) with LTE-M, NB-IoT, and DECT NR+ connectivity, and GNSS functionality. The SoM also features a 16MB SPI flash, an nPMIC1300 for power management, a Nano SIM card slot, and a footprint for an eSIM. I/Os and power signals are exposed through two 50-pin board-to-board connectors, and the company provides a starter kit with a baseboard for evaluation. emCraft SOM-NRF9151 specifications: SiP – Nordic Semi nRF9151 CPU – Arm Cortex-M33 @ 64 MHz Memory – 256 KB SRAM Storage – 1 MB flash Wireless – LTE-M, NB-IoT, and DECT NR+ modem with GNSS 700-2200 MHz LTE bands: B1-B5, B8, B12, B13, B17-B20, B25, B26, B28, B65, B66, B85 Power Class 5 20 dBm Power Class 3 23 dBm 1.9GHz NR+ band support Certified for global operation […]

March 21, 2025March 22, 2025 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Mini UPS with 5V, 9V, 12V DC, and PoE output could be useful for routers, security cameras, SBCs, and mini PCs

Mini Uninterruptible Power Supply DC USB PoE

Most uninterruptible power supplies (UPS) require AC voltage and use specific batteries that must be changed every few years. But those may be oversized and not the most efficient if you just want to keep single board computers (SBCs), low-power mini PCs, routers, or security cameras up and running during power failures. Luckily, some mini UPS solutions use standard rechargeable 18650 batteries, output 5V, 9V, or 12V DC, or even PoE (15V/24V) which may be more suitable for those use cases. Many mini UPS solutions come from WGP (Wonderful Green Power), so let’s have a look at the WPG103A model. WPG103A mini UPS specifications: Batteries – 4x 18650 batteries for a combined 10,400 mAh capacity Protection – Overcharge, over-discharge, overcurrent, and short circuit protection Misc – Power button, status LEDs Power Input – 12V/2A via DC jack Power Output 5V via USB Type-A port (likely limited to 1.5A or 2A […]

February 28, 2025February 27, 2025 by Debashis Das - 4 Comments

LispDeck handheld lisp computer Runs uLisp on Teensy 4.1 with Wi-Fi, LoRa, and two screens

Designed by Hartmut Graw, the LispDeck is a Handheld Lisp computer built around the Teensy 4.1 microcontroller for Lisp programming on the go. It features a dual-screen setup with a 5-inch touchscreen and, a secondary ST77350-based TFT display. It also has an Adafruit RFM96 radio module, an ESP8266 Wi-Fi module, a rotary encoder, an SD card for storage, and a detachable wireless USB keyboard, all housed in a 3D-printed case. Running the uLisp language, it features a standalone Lisp programming environment without needing a PC or tablet. It is an evolution of the LispBox, with a portable and battery-powered design, which also maintains compatibility. Unlike Raspberry Pi-based cyberdecks, the LispDeck is designed for complete control over the system without the complexity of Linux. It is useful for Lisp enthusiasts who want a compact, dedicated computing device that’s fully documented. LispDeck Specifications SoC – NXP i.MX RT1062 via Teensy 4.1 board […]

January 27, 2025January 27, 2025 by Debashis Das - 6 Comments

NXP EdgeLock A30 Secure Authenticator chip enables battery authentication for compliance with EU regulation 2023/1542

NXP recently launched the EdgeLock A30 Secure Authenticator chip, a Common Criteria EAL 6+ certified secure authentication designed for IoT devices, including battery authentication applications. It complies with the EU’s Batteries Regulation 2023/1542, which mandates the inclusion of a Digital Product Passport (DPP), by 2027 to ensure traceability, sustainability, and safety in battery manufacturing and recycling. Alasdair Ross, Senior Director, NFC IoT Security, NXP explains: Secure authentication helps to ensure brand protection, consumer safety, and product traceability, fostering trust and shielding devices from physical damage. Smaller than a grain of rice, the EdgeLock A30 is designed to fit into even the smallest of devices. It supports multiple authentication use cases, making it easier for developers to support a variety of devices and accessories with a single solution, including device to device, cloud to device, counterfeit protection, and storage or protection of device identity. To address these requirements NXP’s EdgeLock A30 […]

January 13, 2025 by Debashis Das - 6 Comments

Fully enclosed ESP32-S3 board features 1.8-inch AMOLED, microphone & speaker for AI audio applications

ESP32 S3 1.8inch AMOLED display development board

Waveshare ESP32-S3-Touch-AMOLED-1.8 is an ESP32-S3 development board with an AMOLED display and AI audio support fully housed in a plastic enclosure. The most interesting feature of this devkit is its 1.8-inch AMOLED display with a 100000:1 contrast ratio and a wide 178° viewing angle, plus support for AI speech using its built-in microphone and speaker, and a built-in battery for IoT and AI applications. Other features include a QMI8658 6-axis IMU for motion detection, a PCF85063 RTC for time, and an ES8311 audio codec for high-quality audio. The ESP32-S3 provides Bluetooth and Wi-Fi connectivity and the board also features a USB-C port for power and programming. The AXP2101 power management IC enables battery charging and optimization, while GPIO, I2C, and UART pads allow expansion. Waveshare ESP32-S3-Touch-AMOLED-1.8 specifications Wireless MCU – Espressif Systems ESP32-S3R8 CPU – Dual-core Tensilica LX7 @ up to 240 MHz with vector instructions for AI acceleration. Memory – […]

January 13, 2025January 11, 2025 by Tomisin Olujinmi - No Comments

NXP MCX L14x and MCX L25x ultra-low-power Cortex-M33 MCUs target energy harvesting and battery-powered devices

NXP Semiconductors has launched the MCX L series of ultra-low-power Arm Cortex-M33 MCUs with the MCX L14x and MCX L25x SKUs. The new series offers similar peripherals as the rest of the MCX portfolio but uses a new “power management architecture that supports always-on, battery-powered applications” The MCX L series uses a dual domain architecture, with “real-time processing and ultra-low-power sensing functions in a single device.” The Arm Cortex-M33 core supports real-time processing functions while the Arm Cortex-M0+ core offers always-on operation in the ultra-low-power sense domain. The new microcontrollers reportedly use three times less power than their predecessors. The ultra-low-power series is targeted at energy-constrained applications, powered by a battery, ultracapacitor, or power harvesting circuit. These include building control, industrial sensing, smoke and fire alarms, flow meters, smart appliances, and motion detectors. NXP MCX L14x and L25x specifications: CPU Main core: Arm Cortex-M33 microcontroller @ up to 96 MHz […]

January 13, 2025January 13, 2025 by Debashis Das - 3 Comments

Seeed Studio XIAO Plus series adds more GPIOs through castellated holes

In response to community feedback for more I/O options, Seeed Studio has recently launched the Seeed Studio XIAO Plus series with 23 castellated mounting pins (20 GPIOs, 3 power pins) and improved back solder points, improving compatibility with carrier boards for complex projects. The new series includes the XIAO ESP32S3 Plus, XIAO nRF52840 Plus, and XIAO nRF52840 Sense Plus which are direct upgrades of the XIAO ESP32S3, XIAO nRF52840 BLE, and XIAO nRF52840 Sense boards. The new design allows for easier assembly and scalable production, with double the I/O options. XIAO ESP32S3 Plus The Seeed Studio XIAO ESP32S3 Plus is a compact development board with a total of 23 pins on the board out of which 11 are through-hole GPIO pins 9 additional SMD castellations GPIO pins and 3 through-hole are power pins. The board is built around an ESP32-S3 MCU so it has 2.4GHz WiFi and BLE 5.0 connectivity. Other […]

January 9, 2025March 29, 2025 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Pilet is a Raspberry Pi 5-powered modular, portable computer with 5-inch or 7-inch display, optional built-in keyboard (Crowdfunding)

Pilet is a modular, open-source hardware, portable computer designed for the Raspberry Pi 5 SBC, and equipped with a choice of displays, keyboards, and an optional battery module that can last for up to 7 hours. Two models are available: the Pilet 5 with a 5-inch display, an integrated keyboard, a trackball, a scroll wheel, a navigational switch (D-Pad), and game buttons, and the Pilet 7 with a larger 7-inch display and support for detachable modules such as a keyboard, gamepad, or deck. Pilet specifications: Supported SBC – Raspberry Pi 5 Storage – MicroSD card, NVMe SSD via module Display Pilet 5 – 5-inch IPS MIPI DSI display with 1280×800 resolution, capacitive touch screen. Pilet 7 – 7-inch IPS MIPI DSI display with 1280×800 resolution, capacitive touch screen. Video Output- 2x micro HDMI ports Networking Gigabit Ethernet RJ45 port 802.11ac WiFi 5 and Bluetooth 5.0 Optional LTE cellular via module […]