Electronics: 6th May 2025

2025 Week 18 (rkrishnan.org, 2025-05-04). Ramakrishnan chronicles progress on his DC receiver project, details tools like the PeakAtlas LCR45, and shares personal insights, including a family remembrance and plans for a ham radio expedition to Lakshadweep

Episode 20 Transcript (thebootloader.net, 2025-05-05). Discussion on Synology NAS drives and the open-source TRMNL Wi-Fi e-paper wall display with custom plugin support, alongside an update on a CircuitPython synth tutorial showcasing the Synthio library's enhancements

I'm Afraid it's TRMNL (thebootloader.net, 2025-05-05). Tod and Paul explore woodworking with open source furniture Hyperwood, discuss the TRMNL WiFi ePaper display, reflect on Rockbox firmware for MP3 players, and highlight a CircuitPython Synthio tutorial

Arduino Automatic Reset (qsantos.fr, 2025-05-01). Explore how to enable automatic reset on Arduino using UART, including practical insights on hardware setup with ATmega32U4 and ATmega328P microcontrollers, capacitors, and AVRDUDE for programming

Getting Started with ATtiny Configurable Custom Logic (CCL) (hackaday.com, 2025-05-03). Explore how to utilize ATtiny's Configurable Custom Logic (CCL) for creating digital logic circuits using tools like Lookup Tables (LUTs) and the Logic.h Arduino library, while saving on BOM costs

My Quest For Home Automation, Part 6 (taoofmac.com, 2025-05-03). Home automation migration using LXC containers on Proxmox, the author consolidates their setup with Homebridge and Zigbee2MQTT while transitioning from a Raspberry Pi to a Beelink U59 Pro, enhancing backup and management capabilities

DIY Smart home project: Presence-activated lights (blog.shalvah.me, 2025-05-01). An overview of creating presence-activated lights using Antela smart bulbs, an ESP32 microcontroller, and a PIR sensor, configured with ESPHome for customizable smart home automation

Making Your Reolink Camera Talk (with AI!) via Home Assistant (markus-haack.com, 2025-05-04). Transform Reolink camera motion alerts into AI-generated spoken descriptions using Home Assistant and Google AI integration for real-time situational awareness

Jonathan McDowell: Local Voice Assistant Step 2: Speech to Text and back (earth.li, 2025-05-01). Setup involves ATOM Echo Voice Satellite, Home Assistant with Wyoming Protocol, speech recognition using whisper.cpp, and Google Translate for text-to-speech, achieving local voice control for smart home automation

How to Run Your Own Weather Station (jpdias.me, 2025-05-02). A personal account of setting up a Bresser weather station and overcoming WiFi issues through Arduino and SX1276, involving data decoding and the implementation of the BresserWeatherSensorReceiver project for real-time readings

My TV Remote Stopped Working… So I Made My Own. (thestockpot.net, 2025-05-02). Create your own Everything Remote with 3D printable files, PCB project listings, and ESPHome configuration. This resource guides you in developing a functional remote using an ESP32 microcontroller

moteus-x1 (jpieper.com, 2025-05-01). The moteus-x1 motor controller features improved output phase current capacities of 25A and 60A with cooling, and includes enhancements like PWM-supported fan output pads and high-temperature rated magnets

Read Motor Speed Better By Making The RP2040 PIO Do It (hackaday.com, 2025-04-29). PicoEncoder library leverages the RP2040's PIO for improved motor speed readings, addressing noise and phase discrepancies in quadrature encoders, ensuring efficient and accurate results at varying speeds without CPU delays

IKEA cordless drill battery powering guitar pedalboard (acidbourbon.wordpress.com, 2025-05-05). A DIY project explores using an IKEA TRIXIG cordless drill battery to power a guitar pedalboard with a 7809 voltage regulator, featuring 3D printed components and easy recharging capabilities

Bottango and Isaaca (kevsrobots.com, 2025-05-04). Bottango is a platform for animating servos in robotics, ideal for projects like InMoov. Courses cover animatronics, Raspberry Pi, and Python programming, including courses on Lidar and robotics concepts

Open source 24-channel USB high-voltage driver (jayakody2000lk.blogspot.com, 2025-05-04). This open-source 24-channel USB high-voltage driver utilizes TPIC6B595 shift registers and the STC15W204S microcontroller, providing automation capabilities for high-voltage applications with flexible command interfaces and comprehensive documentation available

All-Band Radio Records Signals, Plays MP3s (hackaday.com, 2025-05-04). Minh Danh's innovative radio project combines an Si4735 for AM/FM reception, a dsPIC microcontroller for MP3 playback, and advanced audio engineering using TDA1308 and NS8002 chips, with extensive documentation provided

picoDexed + MiniDexed EuroRack (diyelectromusic.com, 2025-05-03). The picoDexed integrates a Pico-to-Zero board and MiniDexed for Eurorack, utilizing RP2040s, GPIO mappings, and custom firmware while advising on safe experimentation with older equipment

Eurorack Spring Reverb Driver (polykit.rocks, 2025-05-04). This Eurorack Spring Reverb Driver module features two input signals, a dry/wet control, and resonance adjustment, using a NE5532 op-amp to effectively drive an external reverb tank

Embedded Security with Paul Asadoorian (opensourcesecurity.io, 2025-05-05). Paul Asadoorian discusses embedded systems, IoT vulnerabilities, and the ESP32 microcontroller, emphasizing the challenges of software supply chain security and open source reliance amid issues with example code and AI code generation

MiniRack Build Out And Review (hagensieker.com, 2025-04-30). Explore John Hagensieker's mini rack build featuring Raspberry Pi computers, JetKVM management, and various tools for networking, DMR radio, and data storage within a compact 10" form factor

A LoRa LoRa Faff (planb.nicecupoftea.org, 2025-04-29). The talk discusses LoRa and LoRaWAN, highlighting challenges with device communication, gateways, and using The Things Network while advocating for community-controlled, low-power devices like moisture sensors and water quality monitors

I turned a 40 year old Apple Mouse into a speech to text button (workshop.cjpais.com, 2025-05-03). Converted a 1985 Apple M0100 mouse into a wireless speech-to-text device using ZMK firmware, a Seeed Xiao nRF52840 microcontroller, and custom 3D printing for the baseplate and USB-C charging

The Making of a Kitchen Clock: A Photo Essay (lars.ingebrigtsen.no, 2025-04-29). A DIY kitchen clock project using a Raspberry Pi Zero 2 W, side-mounted connectors, an HDMI screen, and Emacs for SVG generation, showcasing the challenges of color depth and custom display settings

Some VORON 0 mods (jonashietala.se, 2025-05-02). Jonas Hietala shares his experiences modding the VORON 0, integrating a HEPA filter, replacing noisy fans, utilizing modesty mesh for aesthetics, and installing full-size panels for improved sealing and functionality

WarGames Clock (opsbros.com, 2025-05-01). A DIY project inspired by 'WarGames' involves creating a 3D-printed clock that mimics the NORAD panel, showcasing a launch code discovery countdown using custom electronics and a fitted PCB

Building A Better Keyboard (blog.optional.page, 2025-05-01). Explore the journey of building a customized keyboard, discussing design choices, ordering parts, soldering techniques, and firmware configurations such as Miryoku Layout and ZMK for enhanced typing experience

Amiga 4000 With Lots of Little Problems (linuxjedi.co.uk, 2025-05-03). An Amiga 4000 motherboard with black screen issues was repaired using DiagROM, Hafnium for testing, and extensive soldering to resolve RAM and audio problems, ultimately restoring functionality

What have I been up to? (insanity4004.blogspot.com, 2025-05-03). Reece shares experiences working with PDP-11/44, CDC 160A, and 8080A microprocessors, detailing volunteer work at a museum and projects involving vintage system restorations and component development

Refurbishing a CIR Astro 200 HF amateur band transceiver (ka7oei.blogspot.com, 2025-05-02). In 2025, KA7OEI refurbishes a 1970s CIR Astro 200 HF transceiver, detailing techniques like using an ultrasonic cleaner and a Hakko FR-300 desoldering iron while replacing aged capacitors for improved performance

MSX Goa'uld - MSX1 to MSX2+ conversion board (msx.org, 2025-05-02). The MSX Goa'uld board facilitates an easy upgrade of MSX1 computers to MSX2+ using an FPGA setup, offering compatibility with various MSX models and future enhancements like OSD and USB keyboard integration

Thunderscope update: My take: Why open source is better (crowdsupply.com, 2025-05-01). The ThunderScope project updates on its PCB design challenges, utilizing KiCad for matching delays, and outlines production timelines for the Dev Edition, ensuring accountability via GitHub Issues

PCB Renewal Aims To Make Old Boards Useful Again (hackaday.com, 2025-05-04). PCB Renewal is a KiCad plugin that modifies existing PCBs by generating toolpaths for milling and epoxy deposition, allowing users to make gradual updates rather than starting from scratch with new boards

Layout A PCB with Tscircuit (pappp.net, 2025-04-30). Tscircuit is a hardware description language allowing users to lay out PCBs without intricate schematics, demonstrated through an LED matrix project involving a Pico microcontroller and smart LEDs

Winner, Name that Ware March 2025 (bunniestudios.com, 2025-04-30). March 2025's featured ware is a Wekome WP-U157 67W GAN power supply, which overheated due to design flaws including inadequate thermal contact and safety measures, as explored in detailed fault analysis

How to Read CT Scans, Part 2: Identifying Components (ifixit.com, 2025-05-05). Explore the inner workings of electronics with CT scans, identifying components like capacitors, transformers, and microcontrollers using Lumafield's technology for detailed imaging and analysis

Switch bouncing reference traces for a variety of different switches (github.com, 2025-05-04). A collection of switch bouncing reference traces for various switches, including plotting and PWL data for hardware debouncing simulations, available for developers implementing robust debouncing in circuits and firmware

Tuesday, April 15, 2025 Accessible FM Radio Case Study - Part 3 - Audio Tests (doctormonk.com, 2025-05-01). Dr. Monk explores audio output for an accessible FM radio using the TEA5767 module and the TDA1308 amplifier, conducting tests with low-quality speakers to refine the design for a final PCB assembly

Debugging a Logic Circuit in IDP-Z3 (simonvandevelde.be, 2025-05-03). Using IDP-Z3, the blog explores diagnosing faulty logic circuits based on input-output observations, through modeling gates, wires, and testing values, ultimately finding broken components with minimal assumptions