Restoring a 1924 Frigidaire B-9 Refrigerator Back to Working Condition

https://invidious.privacyredirect.com/watch?v=lieog1_yNCo

Before the refrigerator became a normal part of any kitchen, those with enough money to throw around could get an icebox, which used melting ice to cool food and drinks in a second compartment. As refrigerators became available for sale in the 1920s, this created somewhat awkward transition models, like the 1924 Frigidaire B-9 that [David Allen] recently got offered for a restoration. This was part of the restoration of a 1926 house, which foresaw putting this venerable unit back into operation.

As [David] explains, this refrigerator was still in use until about 1970 when it broke down, and repairs proved...

Keebin’ with Kristina: the One with the Split with the Num Pad

I love, love, love Saturn by [Rain2], which comes in two versions. The first, which is notably more complex, is shown here with its rings-of-Saturn thumb clusters.

Image by [Rain2] via redditSo what was the impetus for this keyboard? It’s simple: a friend mentioned that ergo keyboards are a no-go if you need a num pad really bad.

Saturn has one built right in. The basic idea was to add a num pad while keeping the total number of keys to a minimum. Thanks to a mod key, this area can be many things, including but not limited to a num pad.

As...

Hiwonder WonderLLM – An ESP32-S3 smart chat module with 2-inch touch display, 2MP camera, and dedicated voice chip

Hiwonder has introduced the WonderLLM, an ESP32-S3-based smart chat module that combines a 2MP camera, a 2.0-inch touch display, a speaker, and a microphone array to support both offline computer vision tasks and cloud-based Large Language Models (LLMs) via the XiaoZhi AI platform. The device ships with a dedicated voice chip (CI1302) that enables always-on wake-word detection, and a 4-pin I2C interface allows it to act as a smart vision/voice sensor for external controllers like Arduino, STM32, or other ESP32 boards. Typical applications include small robots, STEM education kits, interactive assistants, and vision-enabled projects where this device handles perception and...

Innodisk EXEC-Q911 COM-HPC Mini kit is powered by a Qualcomm Dragonwing IQ-9075 Edge AI SoC

Innodisk has recently introduced the EXEC-Q911, a COM-HPC Mini starter kit designed for edge AI applications powered by a Qualcomm Dragonwing IQ-9075 System-on-Chip (SoC), also known as the QCS9075, which delivers up to 200 TOPS of AI performance. The platform includes 36GB LPDDR5X memory and 128GB UFS 3.1 storage, supports dual 2.5GbE, two 4-lane MIPI CSI-2 camera interfaces, DisplayPort 1.2 and eDP outputs, and multiple expansion options via M.2 (PCIe Gen4 x4/x2) slots. Designed for industrial applications, it operates in a wide -40°C to 85°C operating temperature range, accepts 9–36V DC input, integrates TPM 2.0 security, and offers various I/Os,...

Raspberry Pi CM5-based outdoor PoE security camera features 12.3 MP IMX500 sensor, IP66 enclosure

Arducam recently launched the All-in-One Raspberry Pi AI Camera Kit with CM5, a Raspberry Pi CM5-based PoE outdoor security camera featuring a 12.3MP Sony IMX500 AI vision sensor housed in an IP66-rated enclosure. The camera combines pixel-level sensing and AI inference on a single chip, reducing the need for cloud processing while improving efficiency and privacy. The security camera supports operation from -20°C to +75°C, although image stability is only guaranteed in the 0 to 50°C range, potentially making it unsuitable for locations where temperatures drop below freezing. It can be used for perimeter security, construction site safety monitoring, traffic...

Challenger+ T3217 Packages 8-bit ATtiny3217 in a Compact, Battery-Ready Board

The Challenger+ T3217 is a compact development board based on Microchip’s ATtiny3217, combining the tinyAVR 1-series platform with a small, battery-ready form factor for low-power embedded applications. The board is based on the ATtiny3217, an 8-bit AVR microcontroller running at up to 20 MHz from its internal oscillator. It integrates 32 KB of Flash, 2 […]

Dabao Evaluation Board to Showcase Open-RTL Baochip-1x RISC-V MCU

Baochip has previewed the Baochip-1x, a mostly open RTL, RISC-V–based microcontroller fabricated on TSMC’s 22 nm process. Designed with openness and verifiability in mind, the MCU integrates a VexRiscv application core running at up to 350 MHz, alongside a quad-core I/O accelerator cluster clocked at 700 MHz. The Baochip-1x uses a VexRiscv RV32IMAC processor with […]

Espressif Launches Industry’s First MCU-Based Matter Camera Solution

Espressif Systems has announced a Matter Camera Solution for the ESP32-P4, described as the industry’s first Matter 1.5 camera implementation on an MCU-class platform. The RTOS-based design targets smart home devices such as security cameras, video doorbells, and intercoms, while reducing power consumption and startup latency compared to Linux-based systems. The architecture is built around […]

ACEBOTT QD023 ESP32-based gesture control glove tracks finger movements with potentiometers

ACEBOTT QD023 is an ESP32-based wearable gesture control glove that tracks finger movements with potentiometers instead of more traditional flex sensors. The glove transmits data via Bluetooth Low Energy (BLE) to control various robotics kits, such as bipedal walkers, mecanum-wheeled cars, and robotic arms. The glove integrates five potentiometers for finger bending detection, and a 6-axis MPU6050 IMU for wrist rotation, tilt, and hand posture detection in real time. Other Hardware features include a USB Type-C port for programming and debugging, four AAA batteries for power, buttons, LEDs, and more. Tutorials and assembly guides make it suitable for K-12 education,...

Infineon AIROC ACW741x Wi-Fi 7 ultra-low power tri-radio IoT SoC family support MLO, Wi-Fi sensing, BLE 6.0, and Thread

Infineon has introduced the AIROC ACW741x tri-radio Wi-Fi 7 wireless SoC family designed for IoT and smart home devices. The company mentions it’s the first Wi-Fi 7 solution with a “20 MHz” 1×1 Wi-Fi 7 radio, Bluetooth 6.0 (including Channel Sounding), and an 802.15.4 radio for Thread and Matter support, in a 7×7 mm QFN package. When we think of Wi-Fi 7 (802.11be), we usually picture high-end routers and smartphones with gigabits of data over the huge 320 MHz channels. But the standard also includes features specifically designed for low-power IoT devices. Infineon’s new AIROC ACW741x family, which they claim...