LoRa Communication

Image: en.wikipedia.org - LoRa

LoRa (long range) is a proprietary radio modulation technique based on Chirp Spread Spectrum (CSS), which encodes data on radio waves using frequency-sweeping chirp pulses. It operates on license-free sub-gigahertz bands: 868 MHz in Europe, 915 MHz in North America and Australia, 433 MHz globally.

The core tradeoff is range vs. data rate. Spreading factors (SF5–SF12) let you tune this: higher SF means longer range and better sensitivity, but slower throughput and more battery drain. Data rates run from 0.3 to 27 kbit/s, per Wikipedia. Typical range is 2–5 km urban, 5–15 km rural, and beyond 15 km line-of-sight, according to readthedocs.io.

LoRa is the physical radio layer only. LoRaWAN sits on top as the network protocol (MAC layer), defining how devices connect to gateways and the internet. The Things Network describes LoRaWAN devices as capable of running up to 10 years on a single coin cell battery.

Semtech owns the LoRa IP and makes the chipsets. The LoRa Alliance, a 500-member non-profit, maintains the LoRaWAN standard, which the ITU formally recognized in December 2021.

Common applications include smart agriculture, asset tracking, water leak detection, cold chain monitoring, and mesh networks like Meshtastic.

For a thorough technical grounding, The Things Network's LoRaWAN guide is the most practical starting point.

Sources: Wikipedia, The Things Network, Semtech, readthedocs.io

Google's reCAPTCHA Now Requires Play Services on Android

Google has tied its next-generation reCAPTCHA system to Google Play Services, meaning users running GrapheneOS or any custom ROM without Google's software automatically fail verification challenges, per Reclaim The Net.

When reCAPTCHA flags suspicious activity, it skips the old image puzzles and instead demands a QR code scan. That scan requires Play Services version 25.41.30 or higher running in the background. No Play Services, no access.

Google announced the broader system, called Google Cloud Fraud Defense, at Cloud Next on April 23, framing it as a platform to handle AI agents and bots. The Play Services dependency was not highlighted. An Internet Archive snapshot from October 2025 shows the same requirement was already listed at version 25.39.30, meaning Google built this in quietly at least seven months before a Reddit user on r/degoogle flagged it, with PiunikaWeb and Android Authority picking it up.

The iOS comparison is telling: Apple devices on iOS 16.4 or later pass the same verification without any additional software. Only Android users without Play Services are locked out.

Image: Reclaim The Net - Google Broke reCAPTCHA for De-Googled Android Users

An Ars Technica forum user noted the practical problem bluntly: "I'm betting some sites or services that do use it are unavoidable." Commenters on LinkedIn have suggested hCaptcha as an alternative for web developers who don't want to exclude privacy-conscious users.

Sources: Reclaim The Net, Ars Technica OpenForum, PiunikaWeb

Despite mounting scrutiny over Palantir’s alleged links to human rights abuses and Israeli war crimes, several major media organisations have still partnered with the company – including German publishing giant Axel Springer, the new owner of the British newspaper The Telegraph.

Axel Springer – which also owns Politico, Business Insider, Bild, and Welt – uses Palantir’s Foundry software across its media operations.

Palantir has said that Axel Springer used Foundry to integrate data from its various publications and revenue streams, helping to build what the company described as "a more agile, data-driven publishing organisation" capable of responding more effectively to shifts in consumer behaviour and audience interests.

https://archive.ph/ReAtU