Electronics: 1st April 2025

Ikea TRETAKT Teardown, Ikea SmartPlug Socket with energy meter TRETAKT Internal PCB (circuitvalley.com, 2025-03-30). A detailed teardown of the Ikea TRETAKT SmartPlug Socket featuring an energy meter, discussing the internal components including the PCB and aspects of power measurement with tools like the HLW8110

Laptop parts swap completed; fault in V2315CF power distribution board (rescue1130.blogspot.com, 2025-03-29). Carl Claunch resolves a fault in the V2315CF power distribution board and successfully swaps parts in a Lenovo Ideapad L340, enhancing its performance with SSD, RAM, and Intel Wifi/Bluetooth module upgrades

Repair of IBM 1130 core memory with failure of bit 13 inhibit in lower 4K (rescue1130.blogspot.com, 2025-03-31). Bit 13 inhibit failure in IBM 1130 core memory was resolved by improving ground connection. The repair involved modifying resistive paths in the PCB and successfully restored memory functionality

Raspberry Pi with OpenCV: Getting Hands-On with AI at the Edge (opencv.org, 2025-03-28). Set up Raspberry Pi 5, install OpenCV, and create real-time computer vision applications using Python, covering tools like Miniconda and VS Code for edge computing with live camera feeds

PokyPow Documentation is Live (ajfriesen.com, 2025-03-30). PokyPow documentation is live, utilizing Material for MkDocs, enabling browser-based flashing with ESP Web Tools, and planning future features like OTA updates from GitHub to simplify firmware management

Autonomous Response Codes (owentrueblood.com, 2025-03-26). A project using QR codes as autonomous agents is explored, utilizing a Lua DSL for decision-making and actions, aiming for physical code persistence with prototypes using AxiDraw and mobile robots for real-time interactivity

DIY PTP Grandmaster Clock with a Raspberry Pi (jeffgeerling.com, 2025-03-28). A Raspberry Pi 5 project utilizing TimeHAT hardware and Intel i226 NIC builds a stratum 1 PTP and NTP timeserver, leveraging GPS and open-source software for precise time distribution

LED Filaments Become Attractive Time Piece (hackaday.com, 2025-03-25). A unique clock design, FilamenTIME, utilizes LED filaments for a visual display with 60 minute indicators and 12 hour markers, driven by an ATmega328P and supported by a DS3232MZ real-time clock

Home-made Time Tracking Cube with Home Assistant (iamyekta.com, 2025-03-31). A DIY time tracking cube using an Aqara Cube T1 Pro integrates with Home Assistant and InfluxDB, allowing users to log activities effortlessly with a physical interface and personalized stickers for each task

Physical Pomodoro Timer with ESP32 and e-paper screen (github.com, 2025-03-29). ESP32-based pomodoro timer features an ePaper display, rotary dial, LED indicators, and is programmed in C++ using the Arduino framework. Designed for productivity, it incorporates a unique break and timer system

Q1 2025 (szymonkaliski.com, 2025-03-31). Explored DIY motorization of external blinds using a car power window motor, relays, and 3D printing alongside building a filament dry box, highlighting challenges and technical solutions like MQTT and ESP32

Metal Detector Built With Smartphone Interface (hackaday.com, 2025-03-25). A modern metal detector uses pulse induction and an ESP32 microcontroller to send data to a smartphone via Bluetooth, allowing for convenient metal detection with a compatible mobile interface

An ESP32 Pomdoro Timer (hackaday.com, 2025-03-29). An ESP32-based Pomodoro timer features a NodeMCU board, Waveshare e-paper display, and custom interface with a rotary encoder and addressable LEDs, all housed in a 3D-printed case for effective time management

Creating an ESP32 based dice for chess (blog.dowhile0.org, 2025-03-28). An ESP32-based dice for chess, using CircuitPython, simplifies the dice chess variant by displaying piece images on a T-Display-S3 screen, enhancing ease of use for players unfamiliar with the die-piece mapping

Decoding BLE adverts of Hörmann Supramatic E4 garage door mover (stdin.co.uk, 2025-03-30). Decode BLE advertisements using ESP32 and identify the operating state of the Hörmann Supramatic E4 garage door opener, monitoring its open/close status via an app

Golang on the Playstation 2 (rgsilva.com, 2025-03-27). Exploring baremetal Go code execution on PlayStation 2 through TinyGo and ps2dev SDK, targeting MIPS-III N32 for a unique programming challenge

10PRINT and 100 Doors on the PicoCalc from Clockwork Pi (imapenguin.com, 2025-03-26). Explore the Clockwork Pi PicoCalc, a retro handheld device that supports BASIC and runs classic programs like 10PRINT and the 100 Doors problem, demonstrating its capability for programming and visual representation

Rust on the Ferris Sweep (gabevenberg.com, 2025-03-29). Gabe Venberg explores flashing the Ferris Sweep keyboard with RMK, a Rust-based firmware, detailing setup using rmkit, pin mapping complexities, and challenges faced during configuration and debugging

Admit it. You Want This Go-Kart (hackaday.com, 2025-03-26). Matto Godoy transforms a child's go-kart into an electric vehicle with hoverboard motors, lithium-polymer batteries, and off-the-shelf components, crafting a fun ride perfect for zipping around the neighborhood

Chase Light SAO Shouldn’t Have Used a 555, and Didn’t (hackaday.com, 2025-03-27). Johannes created a mechanical chaser light badge using a motor and gears for a convincing light effect, steering clear of microcontroller complexity or the 555 timer chip convention

It’s alive! or Hacking together an IDEX 3D printer/ What’s Going On? Blog #4 (hacklab.to, 2025-03-29). A-Train repurposes two Creality Ender 3 printers into the Ender3000, an IDEX 3D printer using Klipper software, enhancing printing with dual extruders for different colors and materials while incorporating a Raspberry Pi for control

Print your own USB connector (lucstechblog.blogspot.com, 2025-03-28). Create a functional USB connector using 3D printing. The STL files, assembly guide, and testing tips ensure safe and effective use with projects like Raspberry Pi Pico and ESP32 circuits

Forbidden Planet “Krell” Display PCB Build Guide (diyelectromusic.com, 2025-03-30). Build notes for the Forbidden Planet 'Krell' Display PCB focus on standalone assembly, including MIDI control, potentiometer circuits, and using CircuitPython code for testing features like LEDs and MIDI communication

Forbidden Planet “Krell” Display PCB Design (diyelectromusic.com, 2025-03-30). A PCB design for the Forbidden Planet 'Krell' Display utilizing APA-106 RGB LEDs, featuring power options, GPIO breakout headers, and analog inputs tailored for versatile DIY electronic music projects

PicoReg 2: non-invasive debugging of RP2040 and RP2350 using SWD (iosoft.blog, 2025-03-30). PicoReg 2 offers non-invasive debugging for RP2040 and RP2350 processors using the Raspberry Pi Debug Probe and SWD, providing insights into processor functions without halting execution, all implemented in Python

Pulseview/Sigrok: Use Hantek 6022bl with 16 channels (Linux/debian) (michlstechblog.info, 2025-03-30). Instructions for using the Hantek 6022BL oscilloscope with 16 channels on Linux, detailing two methods: firmware modification and building a custom package for compatibility

Apache NuttX and small systems - Modbus slave example (railab.me, 2025-03-26). Implementing a Modbus slave application with Apache NuttX, utilizing STM32 for ADC sampling, and enabling communication over RS-485 with detailed analog input statistics and configurable parameters

Ghetto soldering tweezers (mitxela.com, 2025-03-27). Exploration of Ghetto soldering tweezers, discussing challenges with soldering equipment like TS101, experiments with tweezers, and 3D printing solutions for effective soldering stands

Danger danger high voltage (atomic14.com, 2025-03-27). Exploring high-voltage circuits, experiments with MOSFETs, inductors, and LED filaments face challenges like capacitor explosions and dead components, prompting investments in a DC-DC converter for proper functionality

Recreating the Analog Beauty of a Vintage Tektronix Oscillator (hackaday.com, 2025-03-29). An attempt to replicate Tektronix's SG505 oscillator involves sourcing rare components and overcoming manufacturing challenges, focusing on low total harmonic distortion and using precision tools

Polyphonic pickup, audio device (wreckage.link, 2025-03-29). The Polyphonic pickup audio device explores real-time audio data transmission using USB Audio Class (UAC) interface while integrating it with Communication Device Class (CDC) for improved low-latency streaming capabilities

I tried making artificial sunlight at home (victorpoughon.fr, 2025-03-27). Victor Poughon explores creating artificial sunlight using a 500W LED, a custom 3D-designed grid array of lenses, and techniques like Rayleigh scattering, achieving a workable prototype with various technical challenges