While schools across the country have shed librarians, Leigh Knapp became the first full-time librarian at her school.

The parts arrived for the RPM meter that uses an Arduino and reciprocal counting to get a three-times-a-second update rate ...

For example, you can make use of the standard Servo library for simple setups or add logic to control servos via PWM control boards such as the PCA9685. Note: the default mode can not be triggered as ...