Hackaday

Reverse Engineering The PROM For The SGI O2

The SGI O2 was SGI’s last-ditch attempt at a low-end MIPS-based workstation back in 1996, and correspondingly didn’t use the ...

Pixel Watch missing some overnight data? Blame the March update

Pixel Watch users report that since the March update, their wearables have been failing to collect SpO2 and skin temperature data.
IEEE

Lock-In Based Phase Fluorometric Dissolved Oxygen Sensor Interface With 4 kHz – 150 kHz Tunable Excitation Frequency and Frequency Error Calibration

Abstract: Optical dissolved oxygen (DO) concentration measurement based on phase fluorometric theory is one of the most promising DO concentration measurement methods with advantages of insensitivity ...