VoltJots | Electronics and IoT

Issue 71

Author

VoltJots
December 11, 2025

Welcome to the latest edition of the VoltJots newsletter, linking you to the very best electronics and IoT news, products, and projects.

Hope you enjoy! Until next week,

VoltJots

NEWS & ARTICLES

OpenRemote’s open source IoT platform gives you all the tools and automation you need to create adaptable connected devices, cutting costs and avoiding complex integrations.

EyeVLA is a new robotic eyeball that mimics human eye movement to scan and zoom in on objects, helping AI systems capture both broad scenes and fine details better than standard fixed cameras.

By linking sensors that harvest energy and communicate over Bluetooth or cellular networks, Ambient IoT lets you monitor asset movement and conditions continuously without much upkeep, cutting costs and boosting coverage.

Moving beyond theory, early quantum computers show they can outperform traditional ones by using qubits to handle vast data in parallel, signalling major changes across sectors and raising new risks.

Instead of relying on cloud servers, edge AI handles tasks like keyword detection right on gadgets, making systems faster and more efficient across industries like healthcare and renewable energy.

By shining near-infrared light on the skin and studying how it scatters, a new MIT device can measure blood glucose non-invasively, matching readings from needle-based monitors in early tests on a healthy volunteer.

PROJECTS & TUTORIALS

Use an SPI microSD module with your Raspberry Pi Pico to boost storage and log sensor data offline. This guide shows how to link the SD card, test file operations via a serial menu, and start building projects that need lots of space.

Give your ESP32 the power to talk by converting text to speech locally, without relying on any internet connection. With just a tiny amplifier and speaker, it uses LPC encoding and the ESP32’s DAC to generate voice alerts and messages right on your device.

Learn how to configure your Raspberry Pi Pico W to use a static IP address with MicroPython, so it won’t change after rebooting and stays easy to find on your network.

The ADXL335 is a small sensor that tracks acceleration along X, Y, and Z axes. This guide walks through its operation and shows how to interface it with an Arduino board.

With a Digispark dev board, INA219 sensor, and OLED display, you can watch your project’s power usage live and understand how small adjustments, like adding resistors or changing sleep modes, affect battery drain.

Combining classic analogue timekeeping with a digital e-paper screen, this alarm clock uses a Raspberry Pi Zero 2W to keep perfect time and show weather forecasts updated hourly via a free API. You can adjust the alarm light brightness and manually refresh weather data.

HuskyLens 2 isn’t just a camera; its MCP Server lets you call its AI features from outside programs, linking its object and face recognition with large language models. This turns it into a smart AI node that can work alongside Python and other AI tools over Wi-Fi.

PRODUCTS

The Modulino family now includes four new compact Arduino nodes: Latch Relay, Light sensor, Joystick, and Vibro. These are designed to connect instantly for faster prototyping without wiring or debugging. They build on seven previous modules: Movement, Distance, Thermo, Knob, Buzzer, Pixels, and Buttons.

The nRF7002 EBII board adds Wi-Fi 6 capabilities to Nordic’s nRF54L Series SoCs, letting you build energy-saving, high-performance wireless solutions for smart homes, wearables, and more.

The GD25NX series from GigaDevice features dual-voltage NOR Flash that pairs a 1.8 V core with 1.2 V I/O, enabling straightforward hookup to 1.2 V SoCs and lowering read power.

Rohm’s new BD67871MWV-Z gate driver uses TriC3 tech to dynamically control gate current, lowering heat and EMI in 12 V to 48 V three-phase BLDC motor systems.

The ST25DA-C from STMicroelectronics is the first commercial NFC chip built for Matter 1.5 onboarding, enabling quick tap-to-pair connections for smart-home gear such as lighting and access control.

The S series thermistors from TDK Electronics control inrush currents in devices like UPS and photovoltaic inverters, handling up to 35 A steady current and 750 J energy. Two leaded types, S30 and S36, offer different sizes and power capabilities, both meeting IEC climatic standards.

Nordic’s nRF54LV10A SoC packs dual processors and low-voltage Bluetooth LE into a tiny 1.93 × 2.29 mm package, running ultra-low power for long-lasting medical wearables like biosensors and glucose monitors.

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