Tags: topic: networks and protocols*

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  1. A clean-room, header-only C/C++ implementation of the Meshtastic LoRa mesh protocol designed for embedded systems. This standalone library allows devices to interoperate with the Meshtastic network without requiring heavy dependencies like Arduino, RadioLib, or FreeRTOS. It handles everything from raw LoRa byte processing to decoded messages including text, position, and telemetry data.
    Key features include:
    - Packet parsing and AES-256-CTR encryption/decryption
    - PKI direct messages using x25519 key exchange
    - Channel management and PSK expansion
    - Protobuf decoding for various message types without Nanopb dependency
    - Radio configuration including regional settings and modem presets
    - CSMA/CA implementation for MAC protocol compliance
    2026-04-26 Tags: , , , , , , by klotz
  2. The Orange Pi Zero 2W is a compact and powerful single-board computer designed for efficiency and versatility in IoT, smart home, and media applications. Powered by the Allwinner H618 quad-core Cortex-A53 processor, it offers high performance with low power consumption and supports various memory configurations to suit different project needs.
    Key features include:
    - Quad-core Cortex-A53 processor up to 1.5GHz with Mali G31 MP2 graphics.
    - LPDDR4 memory options of 1GB, 1.5GB, 2GB, or 4GB.
    - Integrated Wi-Fi 5 and Bluetooth 5.0 for seamless connectivity.
    - Compact PCB size of 30mm x 65mm.
    - Extensive expansion capabilities via a 24-pin connector and a 40-pin GPIO port.
    - Support for multiple operating systems including Android 12 TV, Debian, Ubuntu, and Orange Pi OS (Arch).
  3. A specialized ADS-B Software Defined Radio (SDR) kit designed for aircraft tracking using a Raspberry Pi. This blue R820T2 RTL2832U model features high stability with 0.5 PPM TCXO to prevent frequency drift and includes an onboard 1090 MHz filter and amplifier for enhanced signal range. The package comes with a purpose-built 8 inch 5 dBi antenna, an aluminum heat-dissipating case, and industrial-grade microSD software pre-loaded for easy setup via web browser without command line work.
    Key features:
    - Plug-and-play configuration via WiFi/web browser
    - Integrated 1090 MHz filter and amplifier
    - High-reliability industrial grade microSD card
    - Aluminum case for heat dissipation and interference reduction
    - Drop-in replacement for FlightAware Pro Stick Plus
  4. An improved web interface designed for use with ADS-B decoders such as readsb and dump1090-fa. This tool provides an enhanced visual experience for tracking aircraft, featuring adjustable history, faster performance when displaying many planes, multiple map options, and the ability to select multiple aircraft simultaneously.
    Key features and capabilities:
    - Improved adjustable track history
    - Fast "Show All Tracks" functionality
    - Map dimming/darkening options
    - Aircraft selection and callsign label toggling
    - Support for UAT (978 MHz) display integration
    - Integration with AIS-catcher for maritime tracking
    - Capability to host multiple instances and custom webroots
    - Heatmap visualization support when used with compatible readsb forks
  5. Termius is a modern, full-featured SSH client designed to enhance productivity and collaboration for engineers. It provides a seamless terminal experience across multiple platforms including macOS, Windows, Linux, iOS, and Android. The platform features secure synchronization through encrypted vaults, allowing teams to share infrastructure data safely.

    - IDE-style autocomplete for faster command entry
    - Encrypted Vaults for secure host and credential sharin
    - Real-time terminal multiplayer sessions for team collaboration
    Integrated SFTP for easy file transfers
    - Centralized Keychain for managing SSH keys, passwords, and certificates
    - Support for hardware security keys (FIDO2) and biometric authentication
    - Cross-device synchronization to keep workflows consistent anywhere
    2026-04-25 Tags: , , , by klotz
  6. Banana Pi has announced the BPI-SM10, a compact computing system powered by the SpacemiT K3 RISC-V processor. This hardware is designed for users interested in exploring RISC-V architecture and high-performance AI tasks at the edge. The system features an 8-core AI accelerator capable of delivering up to 60 TOPS, which is sufficient to run 30 billion parameter AI models.
    Key details include:
    * BPI-SM10 consists of a SpacemiT K3 compute module and a versatile carrier board.
    * The processor features an octa-core design at 2.4 GHz with support for up to 32GB LPDDR5 RAM.
    * Carrier board I/O includes M.2 PCIe Gen 4 slots, USB 3.2 ports, DisplayPort, and Gigabit Ethernet.
    * A forthcoming K3 Pico-ITX single-unit mini PC will also be released featuring a 10-gigabit Ethernet port.
  7. An exploration of Technitium DNS Server, a powerful free and open-source tool that serves as an all-in-one solution for home network management. Unlike traditional setups that require multiple separate tools like Pi-hole for ad-blocking, Unbound for recursive resolution, and a dedicated DHCP server, Technitium integrates these functions into a single, easy-to-manage platform. It offers advanced features such as encrypted DNS, internal DNS zone creation for local devices, split horizon support, and native clustering for redundancy.
  8. The MeshCore development team announces a formal split within the project following internal disputes regarding brand ownership and the use of AI-generated code.

    A former team member is accused of attempting to claim the MeshCore trademark and rebranding components using "vibe coded" AI tools without team consensus. The core team clarifies that the only official source of truth remains the GitHub repository and has launched meshcore.io to serve as the new central hub for firmware, documentation, and community engagement.
    Main points:
    - Internal conflict regarding trademark filings and brand control.
    - Dispute over the use of AI-generated code versus human-crafted software.
    - Transition of official resources to the meshcore.io domain.
    - Introduction of the core development team members responsible for future updates.
  9. An introduction to ADS-B Scope, an open source firmware project that transforms the LilyGo T-Display-P4 into a standalone, portable aircraft tracking device. By connecting an RTL-SDR dongle, users can view real-time flight data including callsigns, altitude, speed, and position on a 4 inch AMOLED touchscreen without needing a computer or internet connection.
    Key features include:
    - Real-time aircraft tracking with visual data on an integrated screen.
    - A webapp for viewing live maps with aircraft trails and log replays via USB-C.
    - Meshtastic-compatible mesh messaging protocol using the built-in LoRa radio.
    - SD card logging with GPS timestamps and USB mass storage support.
  10. Espressif Systems has introduced the ESP-Claw framework, designed to enable ESP32 devices to function as local AI agents. The framework allows hardware to interact with Large Language Models (LLMs) to make decisions and execute actions locally without requiring constant cloud connectivity. It supports natural language conversation for defining device behavior through chat coding and utilizes Lua scripts for deterministic execution.
    Key features include:
    - Local event bus driving millisecond-latency responses via Lua rules.
    - MCP Server and Client capabilities for hardware exposure and external service calling.
    - On-chip private memory for long-term context retention without data leaving the device.
    - Support for various messaging platforms including Telegram, WeChat, and Feishu.
    - Compatibility with LLMs such as OpenAI, Qwen, and ChatGPT.
    - Current support for ESP32-S3 with upcoming support for ESP32-P4.
    2026-04-23 Tags: , , , , , , , by klotz

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