The Leo Bodnar Electronics online shop provides a specialized range of electronic components and hardware for professional and enthusiast use. The catalog includes precision frequency references such as GPSDO modules for ham radio and aerospace applications,, NTP servers
Victor Frost has created an ESP32-based community hub that functions as a localized message board with a solarpunk aesthetic. The device resembles a lantern and operates as a local webserver accessible through its own wireless captive portal. It is powered by solar energy using 18650 battery cells. To facilitate easy updates, the project utilizes LittleFS for flash partitioning and stores the entire user interface in PROGMEM rather than on a file system.
>"Orange Pi is an open source single-board card computer, a new generation of arm64 development board, which can run operating systems such as Android TV 12, Ubuntu and Debian. The Orange Pi Zero 2w development board uses the Allwinner H618 system-on-chip, and can optionally have 1GB or 1.5GB or 2GB or 4GB LPDDR4 memory."
This page provides download options and build information for the Orange Pi Zero2W board using Armbian. It features a Debian Minimal variant based on Debian 13 trixie with kernel version 6.18.26. Users can download the image directly or via torrent, and instructions are included for building the image from source using the Armbian framework.
Main topics:
- Available software variants and distributions
- Kernel version information
- Download links and file sizes
- Instructions for manual builds from source
Main topics:
- Available software variants and distributions
- Kernel version information
- Download links and file sizes
- Instructions for manual builds from source
A specialized toolset providing graphical data visualizations for ADS-B decoders, including readsb, dump1090-fa, and other dump1090 variants that supply stats.json files. The project includes automated installation scripts and features designed to protect SD card longevity on hardware like the Raspberry Pi by managing how frequently data is written to disk.
Main topics:
- ADS-B decoder graph visualization
- SD card write reduction and optimization
- Automated installation and update processes
- Data backup, restoration, and integration methods
- Configuration for local map URLs and system timezones
Main topics:
- ADS-B decoder graph visualization
- SD card write reduction and optimization
- Automated installation and update processes
- Data backup, restoration, and integration methods
- Configuration for local map URLs and system timezones
PiShrink is a bash script designed to automatically shrink Raspberry Pi images, making them easier to store and faster to flash onto SD cards. Once the shrunk image is booted, it will automatically resize itself to match the maximum capacity of the target SD card. The tool also supports compression using gzip and xz, with an option for parallel compression across multiple CPU cores to improve speed.
Key points:
- Automatic shrinking of Raspberry Pi images
- Boot-time filesystem expansion to full SD card size
- Support for parallel multi-core compression
- Compatibility with Linux, Windows (via WSL 2), and macOS (via Docker)
Key points:
- Automatic shrinking of Raspberry Pi images
- Boot-time filesystem expansion to full SD card size
- Support for parallel multi-core compression
- Compatibility with Linux, Windows (via WSL 2), and macOS (via Docker)
Linux kernel developer Greg Kroah-Hartman has introduced a new fuzzing tool and AI bot named gregkh_clanker_t1000 that is actively uncovering bugs within the Linux kernel. The tool has already assisted in merging nearly two dozen patches for various subsystems including ALSA, HID, SMB, Nouveau, and IO_uring. Notably, this AI operates as a local large language model (LLM) running on a Framework Desktop powered by AMD Ryzen AI Max (Strix Halo), rather than relying on cloud-based services.
Key points:
* The gregkh_clanker_t1000 tool has contributed numerous bug fixes to the mainline kernel since early April.
* The system utilizes local LLM processing for privacy and efficiency.
* Hardware setup involves a Framework Desktop with AMD Ryzen AI Max+ Strix Halo.
* Emphasis on using an open-source software stack for demanding AI workloads.
Key points:
* The gregkh_clanker_t1000 tool has contributed numerous bug fixes to the mainline kernel since early April.
* The system utilizes local LLM processing for privacy and efficiency.
* Hardware setup involves a Framework Desktop with AMD Ryzen AI Max+ Strix Halo.
* Emphasis on using an open-source software stack for demanding AI workloads.
The Orange Pi Zero 3W is a new compact single-board computer measuring 65 x 32 mm. It features the Allwinner A733 octa-core processor, combining Cortex-A76 and Cortex-A55 cores with an integrated NPU for AI workloads and a RISC-V coprocessor for real-time tasks. The board supports up to 16GB of LPDDR5 memory and offers versatile display options including Mini HDMI, MIPI-DSI, and DisplayPort via USB-C.
* Allwinner A733 SoC with octa-core CPU and 3 TOPS NPU
* Up to 16GB LPDDR5 RAM support
* Connectivity includes Wi-Fi 6, Bluetooth 5.4, and PCIe 3.0
* Multiple display outputs supporting up to 4K resolution
* Support for Android, Debian, Ubuntu, and OpenHarmony
* Allwinner A733 SoC with octa-core CPU and 3 TOPS NPU
* Up to 16GB LPDDR5 RAM support
* Connectivity includes Wi-Fi 6, Bluetooth 5.4, and PCIe 3.0
* Multiple display outputs supporting up to 4K resolution
* Support for Android, Debian, Ubuntu, and OpenHarmony
This project transforms the LILYGO T-Display-P4 development board into a multifunctional portable device capable of acting as a 1090 MHz ADS-B receiver and a Meshtastic-compatible mesh radio. By using an RTL-SDR USB dongle for RF reception and an onboard SX1262 LoRa radio, the system provides real-time aircraft tracking via a touchscreen interface and off-grid messaging capabilities. The device also features integrated MP3 playback, GPS time synchronization, and a companion web application called ADS-B Scope for live map viewing through WebSerial.
Main features include:
* Real-time ADS-B decoding and radar scope visualization with aircraft database enrichment.
* Meshtastic-compatible LoRa mesh networking with encrypted messaging and node discovery.
* Integrated MP3 music player with ID3 tag parsing and cover art display.
* Adaptive RTL-SDR gain control and USB hot-plug support.
* Comprehensive SD card logging for both ADS-B flight data and mesh messages.
* Dual-core ESP32-P4 architecture optimized via a 6-tier FreeRTOS priority scheme.
* WebSerial-based companion app for live mapping, firmware flashing, and file management.
Main features include:
* Real-time ADS-B decoding and radar scope visualization with aircraft database enrichment.
* Meshtastic-compatible LoRa mesh networking with encrypted messaging and node discovery.
* Integrated MP3 music player with ID3 tag parsing and cover art display.
* Adaptive RTL-SDR gain control and USB hot-plug support.
* Comprehensive SD card logging for both ADS-B flight data and mesh messages.
* Dual-core ESP32-P4 architecture optimized via a 6-tier FreeRTOS priority scheme.
* WebSerial-based companion app for live mapping, firmware flashing, and file management.
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
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
