This article details the creation of a "Now Playing" display for a record player using an ESP32 microcontroller. It leverages a microphone, Shazam API (via Shazamio Python library), and MQTT to identify and display the currently playing track. The project involves hardware setup with a Waveshare display and software development in ESPHome.
This article details how to repurpose old hi-fi speakers by adding Bluetooth connectivity using a Raspberry Pi Zero 2W and moOde Audio OS. It covers the necessary components, OS configuration, and steps to enable both web interface and Bluetooth playback.
Stream Assist is a Home Assistant integration that allows users to turn almost any camera and speaker into a local voice assistant, offering privacy and customization benefits over commercial solutions like Alexa or Nest. It uses components like Stream, Assist pipeline, openWakeWord, Whisper, and Piper to process voice commands and control smart home devices.
A review of the Tiny Code Reader, a $7 QR code sensor, detailing its setup, functionality with I2CDriver, limitations (tight centering requirement), and internal components (RP2040 microcontroller and Arducam image sensor).
Seeed Studio has revealed the TRMNL 7.5" DIY Kit, a 7.5-inch e-ink display kit compatible with Home Assistant and Arduino, offering a cost-effective solution for smart home enthusiasts. It includes a 7.5-inch 800x480 monochrome e-ink display, XIAO ESP32-S3 PLUS driver board, 2000 mAh rechargeable battery, and 10cm FPC extension cable. It is currently available for preorder for under $45.
Meshtastic is an open-source mesh networking platform designed to facilitate decentralized, long-range, and ad-hoc communication. This article provides a full guide on how to get started, covering its features, use cases, compatible hardware, and setup instructions.
Something similar to the Spotify Car Thing, built with a cheap ESP32 Screen. Connects to your Spotify account and displays your currently playing song with its album art.
This article details the design and construction of a 512-bit magnetic core memory system running at 200kHz, including the challenges faced, scaling techniques, and practical advice for building your own system.
Han has created a 512-bit magnetic core memory module and documented the process, including wiring details and oscilloscope traces. The module has passed extensive testing, demonstrating the reliability of ferrite memory. The article details the principles of magnetic core memory and provides links to resources for building your own.
Documentation for the ESP32-2432S028R, nicknamed the "Cheap Yellow Display" (CYD), a 2.8" LCD with touchscreen. Includes setup, examples, troubleshooting, and community links.
