Breadboard OS is a command-line operating system for the Raspberry Pi Pico, built on top of FreeRTOS. It aims to enable quick prototyping and supports querying, starting, or killing services, checking flash usage and memory usage, and controlling GPIO pins and other peripherals.
This is a pre-order for the Quansheng UV-K5 radio directly from the factory with modifications for H.F bands and updated firmware. The radio also includes an antenna inductor change and audio quality fix.
The Quansheng UV-K5 is a new handheld radio on the market that offers exciting hacks and mods for amateur radio enthusiasts. This pre-modified version comes with a replacement SI4732 chip, firmware change, antenna inductor change, and a fix to increase audio quality.
- Article by Stephen Cass for IEEE Spectrum
Introduction of Quansheng's UV-K5 handheld ham radio
- UV-K5's firmware stored in flash memory, allowing rewrites using USB programming cable
A growing community of hams adding software-based improvements and features
Examples of mods include graphical spectrum analyzer, text messaging between K5s, improved AM signal reception, and custom start-up messages
Web-based patcher/flasher allows easy installation of mods without exceeding memory limit
Potential risks of abuse and reliance on ham radio's honor system
Future possibilities of increased in-radio processing capabilities and app-like functions
- New apps and asset packs added, including BT Trigger, EM4100 Generator, and GPIO Controller
- Updates to Infrared, NFC, SubGhz, and UL features and functionalities
- Fixes for various issues, including NFC-V dumps crashing and MyKey production date parsing
- Removal of certain apps, such as Brainfuck and Mandelbrot Set
- Known issues with refactored stack regressions in NFC, including broken apps and missing extra actions
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