Streaming HibouAir CO2 Readings to Cloudflare D1 via BleuIO and Python

·8 views

This tutorial shows how to build a simple gateway that moves air quality data from Bluetooth Low Energy to the cloud. A HibouAir sensor broadcasts CO2, temperature, and humidity readings, which a BleuIO USB dongle picks up and passes to a Python application over a serial port. The Python script decodes the measurements, displays them in the terminal, and sends them to a Cloudflare Worker. The Worker saves the records in a Cloudflare D1 SQLite database, which needs no server to maintain and remains reachable even when the gateway computer is offline. The approach is aimed at prototypes, environmental monitoring, and small IoT projects.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

C++26 Introduces Contracts for Preconditions and Postconditions

A CppStories article provides an introduction to contracts, a feature slated for C++26 that lets developers express preconditions and postconditions in code. Preconditions describe what must hold true before a function runs, while postconditions describe what it guarantees on return. The piece explains how these checks help catch programming errors and document expected behavior. The source material available is limited to the article link and basic Hacker News metadata, so the full details of the feature's syntax and semantics are not included here.

0 comments Read more at Hacker News

ProgrammingHacker News ·

Researchers say Israeli firm's digital ads enabled zero-click spyware installation

Security researchers allege that digital advertisements run by an Israeli company were used to install zero-click spyware on targeted devices. Zero-click attacks require no action from the victim, such as clicking a link, which makes them especially difficult to detect and defend against. The findings were reported by The Guardian in October 2026, based on the researchers' analysis. The article linked from the Hacker News post provides the full details of the alleged activity and the firm's involvement. The source material available here is limited to the link metadata, so specifics beyond these claims could not be verified.

0 comments Read more at Hacker News

ProgrammingDEV Community ·

Researcher reverse-engineers TikTok's x-argus anti-bot request signature

A developer published an account of reverse-engineering the x-argus signature TikTok's app attaches to its API requests. The token combines SM3 hashing with SIMON and AES encryption, and its logic sits in an obfuscated native library. The author reportedly bypassed static analysis by running the library under emulation with unidbg to produce valid signatures. The write-up says the resulting client can retrieve profiles, feeds and search results, and that the signature also depends on device fingerprint data and a specific TLS profile.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Explaining JavaScript Promises and Async/Await for Asynchronous Code

JavaScript is single-threaded, so long-running tasks such as server requests, file reads, and timers could freeze an app if handled synchronously. Asynchronous programming lets the language start such a task and keep running other code until the result is ready. Callbacks were the traditional approach but often produced deeply nested, hard-to-maintain code. Promises, which can be pending, fulfilled, or rejected, offer a flatter structure through .then() and .catch(), and async/await builds on them to make asynchronous code read more like synchronous code.

0 comments Read more at DEV Community