VoltJots Issue 27

Issue 27

Author

VoltJots
February 06, 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

IN THE NEWS

Adafruit's most popular articles from the past month, featuring topics such as new products, tutorials, and challenges, as well as community events and resources for makers and electronics enthusiasts.

Engineers from the University of Glasgow have developed chip-free wireless temperature sensors, made from affordable and widely-available materials, that can be manufactured using a simple, scalable process, aiming to reduce the environmental impact and costs associated with traditional RFID sensors.

A new, more sustainable method for extracting lithium from ore has been developed at Penn State, using an electrical current and hydrogen peroxide, which could significantly reduce emissions and costs compared to traditional methods.

A new IoT chip comes with built-in runtime security code that helps protect devices from cyber threats, ensuring safer connections and data integrity.

Cambridge Sensoriis just launched its Detect and Avoid (DAA) technology for drones, which helps them navigate safely by avoiding obstacles in real-time.

Explore how the integration of artificial intelligence (AI) is revolutionizing traditional embedded systems, enabling real-time decision-making, adaptability, and efficiency across various industries, from healthcare to automotive.

PROJECTS

Create a two-factor authentication phone lock that adds an extra layer of security to your devices.

Control your devices with just a clap! Create a clap sensor using a PICO 2 microcontroller and a MAX9814 microphone amplifier.

Learn how to kickstart your IoT projects with Azure IoT Central using the ESP8266, covering everything from setup to data visualization.

Build a 12-bit, 4-channel DAC that uses SPI for output. The MAX5715 module is designed for rapid prototyping and development of electronic systems, featuring low power consumption, selectable internal references, and SPI communication interface.

Here are six Raspberry Pi projects that let gamers relive retro arcade nostalgia, from bar top arcade machines to handheld Game Boy replicas.

PRODUCTS

The Raspberry Pi 5 is a powerful single-board computer featuring a faster processor, PCIe support, and up to 16GB of RAM - could this replace your desktop?

The Nordic Thingy:91 x is a cool, all-in-one IoT development kit that makes it super easy to start building connected projects with its built-in sensors and cellular connectivity.

Perfect for your battery-powered applications, Nexperia's step-down DC-DC converters are designed to boost efficiency and extend battery life in portable devices.

The "ESP32 IoT Relay Board" is a compact, credit card-sized board with four relays and Tasmota firmware that supports voice control.

Toshiba has released seven new 32-bit microcontrollers that can control and manage various types of motors, including AC and DC motors, with advanced features like self-diagnosis and firmware updates.

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