Olimex HoT aims to be lightweight, easier-to-use alternative to Home Assistant

Olimex HoT (Home of Things) is a lightweight Smart Home solution designed to run on low-end hardware (128MB RAM, 128MB flash) and interface with nodes running ESPHome. It can serve as an easier-to-use alternative for people who don’t need all the bells and whistles provided by powerful home automation frameworks such as Home Assistant or OpenHAB. Home Assistant open-source home automation software is great, but it requires a system with at least 2GB of RAM, and 4GB of RAM is often recommended for most users. There’s also a steep learning curve. This is what Tsvetan Usunov, Olimex CEO, realized last...

A Deep Dive Into Inductors

https://invidious.privacyredirect.com/watch?v=S--0-hkSARU

[Prof MAD] runs us through The Hidden Power of Inductors — Why Coils Resist Change.

The less often used of the passive components, the humble and mysterious inductor is the subject of this video. The essence of inductance is a conductor’s tendency to resist changes in current. When the current is steady it is invisible, but when current changes an inductor pushes back. The good old waterwheel analogy is given to explain what an inductor’s effect is like.

There are three things to notice about the effect of an inductor: increases in current are delayed, decreases in current are delayed, and when...

Gimmick Sunglasses Become Easy Custom Helmet Visor

https://invidious.privacyredirect.com/watch?v=9zncjfnF110

[GizmoThrill] shows off a design for an absolutely gorgeous, high-fidelity replica of the main character’s helmet from the video game Satisfactory. But the best part is the technique used to create the visor: just design around a cheap set of full-face “sunglasses” to completely avoid having to mold your own custom faceplate.

One of the most challenging parts of any custom helmet build is how to make a high-quality visor or faceplate. Most folks heat up a sheet of plastic and form it carefully around a mold, but [GizmoThrill] approached the problem from the other direction. After spotting a full-face sun...

Toybox Tractor: Plywood, Lathe Hacks, and 350W of Fun

When you think of a toy tractor, what probably comes to mind is something with fairly simple lines, maybe the iconic yellow and green, big rear tires, small front ones. Well, that’s exactly what [James] built, with simple, clean lines and a sturdy build that will hold up to driving around off-road in the garden. This Tractor is a great build, combining CAD, metal and wood work, some 3D printing, and electronics.

Starting at the power plant for the build, [James] went with a 350W DC motor powered by a 36V Li-ion battery from an...

Review of XIAO ePaper DIY Kit EE02 13.3-inch color E-Ink display with SenseCraft HMI and Arduino

Seeed Studio has sent us a sample of the XIAO ePaper DIY Kit EE02 for review. The kit is comprised of an ESP32-S3 board driving a 13.3-inch Spectra 6 color E-Ink display with 1600 x 1200 resolution. It supports Wi-Fi and Bluetooth 5.0 (LE) wireless connectivity, and features a USB Type-C port for power and programming, a battery connector with an on/off power switch, a built-in charging circuit, a Reset button, and three user buttons. In this review, we will test the XIAO ePaper DIY Kit EE02 with the SenseCraft HMI platform and the Arduino IDE. But first, let’s go...

FOSDEM 2026 – the biggest Open Source Hardware and Software event in Europe

FOSDEM, the largest open hardware and open software conference, took place last weekend in Brussels. More than 8,000 enthusiasts from all over the world gathered to discuss their favorite technologies and meet friends. On Saturday, we ran a full-day workshop. We started at 8:30, and when we arrived at the room there was already a […]

Raspberry Pi 4 dual RAM variant introduced to mitigate RAM price increases and supply challenges

Desperate times call for desperate measures. Raspberry Pi has decided to introduce a dual RAM variant of the Raspberry Pi 4 to allow DRAM supply chain flexibility along with manufacturing process improvement using intrusive reflow soldering. As you may remember, Raspberry Pi first increased the price of most Raspberry Pi 4/5 boards last December while launching the Raspberry Pi 5 1GB RAM to offer a $45 option. At the end of last month, we noted broad market price adjustments due to not only RAM prices, but also storage devices, SoCs, and other components. A few days ago, Raspberry Pi had...

Mudi 7 travel router runs 5G NR alongside tri-band Wi-Fi 7

GL.iNet has opened pre-orders for the Mudi 7 (GL-E5800), a portable travel router that combines 5G NR cellular connectivity with tri-band Wi-Fi 7 in a compact, battery-powered design. The device integrates high-speed wireless networking, dual SIM support, and a touchscreen interface for local configuration. The Mudi 7 is built around Qualcomm’s Dragonwing MBB Gen 3 […]

Cubie A7S – A compact Allwinner A733 SBC with USB-C DisplayPort, GbE, WiFi 6, PCIe Gen3 FFC connector, GPIO headers

Radxa has launched its third Allwinner A733 octa-core Cortex-A76/A55 SBC with the compact Cubie A7S featuring up to 16GB LPDDR5 memory, up to 256GB eMMC flash and a microSD card slot for storage, a Gigabit Ethernet RJ45 port, and a WiFi 6 and Bluetooth 5.2 wireless module. Other features include two USB-C ports, including one supporting DisplayPort Alt mode for video output, a USB 2.0 Type-A port, a 16-pin PCIe Gen3 x1 FFC connector, 30-pin and 15-pin GPIO headers, and a 4-lane MIPI CSI camera connector. At 51 x 51 mm, it offers a middle ground between the credit card-sized...

Texas Instruments to acquire Silicon Labs

Texas Instruments will acquire Silicon Labs for $231.00 per share, representing a total enterprise value of approximately $7.5 billion. The transaction is expected to complete in the first half of 2027, subject to receipt of regulatory approvals and other conditions. Silicon Labs wireless chips are fairly popular in Smart Home applications with Zigbee, Thread, and Matter connectivity, as well as low-power Bluetooth LE wearables and industrial Sub-GHz or 2.4 GHz IoT applications. I can still remember when Silicon Labs purchased Energy Micro in 2013, taking over the EFM32 Gecko MCU family, and about 13 years later, the company is changing...