This sketch reads a piezo element to detect a knocking sound. It reads an analog pin and compares the result to a set threshold. If the result is greater than the threshold, it writes "knock" to the ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers ...

Epson XV7021BB SPI Driver for Arduino This is an example test library for the Epson XV7021BB using the 4-wire SPI interface. It is developed on the Arduino Zero or Teensy 3.6 development board ...

Abstract: This paper provides details about the design and operation of a Collision Avoidance System in smart cars, with the Arduino board as the central control unit, interfaced with an ultrasonic ...

Research in microgravity offers unique insights into materials science, improving crystal formation and advancing the ...

RyzoBee today announced that its Root Series is planned to launch on Kickstarter in Q2 2026 for the North American and European markets (timing subject to confirmation). In response to growing ...

HONG KONG, March 21, 2026 /PRNewswire/ -- RyzoBee today announced that its Root Series is planned to launch on Kickstarter in Q2 2026 for the North American and European markets (timing subject to ...

Electrical engineers at Duke University report they have built a record-setting pyroelectric photodetector that uses trapped light in a plasmonic nanogap to capture a signal in just 125 picoseconds ...

Sensor measurements typically translate physical phenomena of interest into electronic-circuit parameters such as resistance and capacitance, which can then be read with a bridge circuit. Bridge ...

Even if you’ve let your hydration habits slip (or you never glugged a ton of water in the first place), it’s never too late to get back on track and set yourself up to reap the health benefits of ...