There are a few AVR microcontrollers with onboard temperature sensors. These temperature sensors are neither accurate nor precise, but they do work for a few use cases. [Thomas] came up with a little ...

Oscillators and pulse-generators using operational-amplifier ICs have been proposed by many authors. Such generators can be found in a flood of articles in journals, magazines, books, and IC ...

Quartz-based devices have long been a standard by which most other timing devices have been compared. The history of quartz as a stable, controllable, high-quality material for frequency selective and ...