Google's reCAPTCHA is testing a system that requires you to scan a QR code with an Apple or Google-certified phone. Here's why that matters more than it sounds.

CDMA2000 was one of the protocols defined for 3G networks and is now years out of date and being phased out worldwide. Nevertheless, there are still vast numbers of phones that will happily connect to ...

Firmware for the Xteink X4 e-paper display reader (unaffiliated with Xteink). Built using PlatformIO and targeting the ESP32-C3 microcontroller. CrossPoint Reader is a purpose-built firmware designed ...