Electronics: 22nd April 2025

Idle Loop Engaged — Looking for Interrupts (jaycarlson.net, 2025-04-22). Jay Carlson shares his journey in surgical robotics, highlighting his consulting work involving embedded systems, NVIDIA tools, and technical challenges in remote surgery and AI automation after leaving Virtual Incision

HPR4359: Fosdem 2025 - My Personal Experience (hackerpublicradio.org, 2025-04-17). Podcast sharing personal experiences from FOSDEM 2025, including tools like Git for repositories, wattmeter projects using ESP32, and discussions on podcasting's future with Open Standards

2025 Week 16 (blog.lmorchard.com, 2025-04-18). A new personal blogging habit was started, featuring notes on roasting coffee, experimenting with Meshtastic mesh networking using Heltec V3 boards, and plans for further automation of posting processes

I open-sourced my AI toy company that runs on ESP32 and OpenAI realtime (github.com, 2025-04-22). ElatoAI is an open-source project offering real-time AI speech using OpenAI's Realtime API on Arduino ESP32, featuring Secure WebSockets and Deno edge functions for over 10 minutes of uninterrupted global conversations

GK STM32 MCU-Based Handheld Game System (hackaday.com, 2025-04-16). The GK handheld gaming system features an STM32H7S7 MCU, 600 MHz Cortex-M7, 128 MB SDRAM, a touch screen, and WiFi support, running games like Doom and Quake using the custom gkOS firmware

Trekulator: A Reproduction of the 1977 Star Trek Themed Calculator (hackaday.com, 2025-04-21). Michael Gardi's Trekulator project recreates a 1977 Star Trek-themed calculator, utilizing an ESP32 microcontroller, a TFT display, and advanced software for sound, visuals, and calculations with notable floating-point precision issues

VanSpoof v1.0 (mikecoats.com, 2025-04-17). VanSpoof v1.0 enables VanMoof X3 to start without an e-shifter, avoiding Error 44. Features STM32 programming with probe-rs, supporting multi-level logging and installed inside e-shifter using double-sided foam tape

YASP update & name (maddox.pro, 2025-04-21). The project, named TinySynth, incorporates a display, PCA9555 I2C GPIO expanders, and rotary encoder for creating simple synth components like oscillators and LFOs. Development is ongoing and aims for personal enjoyment

Representing torque constant as Kv in moteus (jpieper.com, 2025-04-17). Torque constant in moteus motors is now represented as Kv, simplifying the understanding of the relationship between phase current and torque output, aligning with standard measurement practices

LoRa time! (s-config.com, 2025-04-16). Exploring LoRa technology, the Heltec V3 device, and MeshNet for low-power communication. Discusses technical aspects and DIY building with GPS integration and challenges faced during the project

Discovering Your Baud (trustedsec.com, 2025-04-17). Explore techniques for hardware assessments, including using a logic analyzer like DSLogic Plus to determine baud rates for UART communication, crucial for accessing device firmware in IoT devices

ESP-IDF Tutorials: Soft-AP (developer.espressif.com, 2025-04-18). This tutorial details setting up a soft-AP with an Espressif module using ESP-IDF, addressing Wi-Fi configuration, event handling, and logging for managing connections in networking applications

Extracting power data from a smart meter display (scorpia.co.uk, 2025-04-21). Tyler Ward explores data extraction methods from smart meter displays using Python scripts, Zigbee data specifications, logic analyzers, and Prometheus metrics integration into Grafana for energy monitoring

Raspberry Pi Lidar Scanner (github.com, 2025-04-19). PiLiDAR is a DIY 360° 3D panorama scanner utilizing Raspberry Pi, LDRobot LD06/LD19 LiDAR and HQ camera to create detailed scans with features like PWM, i2c-GPIO, and USB storage

Use your ESP32 as a remote web cam viewer (bitbanksoftware.blogspot.com, 2025-04-22). Explore using the ESP32 microcontroller as a remote web cam viewer, optimizing JPEG streaming from IP cameras with the JPEGDEC library for enhanced frame rates and image quality

How I made an LED driver smart… (remysharp.com, 2025-04-18). The project involved modifying an LED driver with an ESP32 for smart control, faced failures due to voltage issues and mistakes with current measurement. Schematic design included a relay and transistor, aiming for automation

Raspberry Pi Pico reset and bootselector (lucstechblog.blogspot.com, 2025-04-18). Learn how to upload new MicroPython versions to the Raspberry Pi Pico using the bootselector switch and a reset button connected to pin 30, with troubleshooting tips for bootselector issues

Porting OpenWRT to the Cudy R700 (catskull.net, 2025-04-18). Exploring the challenges of porting OpenWRT to the Cudy R700, including firmware modification, UART exploits, and building the custom firmware with Alpine Linux, while navigating hardware limitations and industry complexities

Easter hack: terraform-provider-openwrt (linderud.dev, 2025-04-18). Explore the development of a Terraform provider for OpenWrt, allowing configuration through a JSON-RPC API. The author discusses their experience with OpenWrt, UCI commands, and Terraform resource creation

Yet Another Velop Conversion (bruceediger.com, 2025-04-20). Bruce Ediger documents the process of converting a Velop router to OpenWrt, detailing commands like 'sysupgrade', configuration options, and the setup of three wireless radios using the LuCi interface

Creative Zen Xtra SD Card Mod (caolan.uk, 2025-04-18). A detailed guide on modifying the Creative Zen Xtra MP3 player to use an SD card, utilizing tools like VirtualBox and Windows XP for firmware flashing and file transfers

Building a Greaseweazle Station (hackup.net, 2025-04-21). A Greaseweazle F7 Lightning Plus, two floppy drives, and a custom 3D printed case are key components in building a versatile floppy disk archiving station for various disk formats

Upgrading the Olimex A20 LIME2 to 2Gb RAM, by learning to BGA solder and deep diving into the U-Boot bootloader process (blog.smartere.dk, 2025-04-20). Upgrading the Olimex A20 LIME2 to 2Gb RAM involved mastering BGA soldering and exploring U-Boot bootloader processes, including memory access techniques and chip compatibility with practical soldering experiences and troubleshooting

Attacking My Landlord's Boiler (blog.videah.net, 2025-04-22). A tech enthusiast automates their apartment's heating by cloning radio signals from an 868Mhz thermostat using tools like RTL-SDR and HackRF, overcoming challenges in reverse engineering and automation setups

Milwaukee M18 Battery Reverse Engineering (quagmirerepair.com, 2025-04-17). Reverse engineering of a Milwaukee M18 battery includes detailed analysis of the PCB, chip identification (MSP430G2744, BQ76925), and insights into battery monitoring and charging circuit functionalities

Diagnosing and attempting to fix a Yamaha DX100 – Part 3 (diyelectromusic.com, 2025-04-16). Recent efforts to diagnose the Yamaha DX100 involve testing data signals, inspecting ROM, and replacing the LCD with an HD44780 display while troubleshooting the device's components with an oscilloscope