This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...

Arduino EMF Sensor. 23 Comments . by: Mike Szczys. December 31, 2010. Title: Copy. ... treating the recharging circuit from the emergency lights as the most likely culprit.

Learn how to create a simple heart rate monitor using an Arduino Pro Mini, PulseSensor, and OLED display. This ...

Arduino boards are perhaps the world’s best known amateur microcontroller – cracker-sized circuit boards that cost about $30 and, say, govern the intake of information or the actions of a motor. They ...

Put a acoustic tuned circuit on the transducer. Bond on a piece of thin-wall aluminum pipe just slightly smaller then the transducer’s diameter with silicone sealant. The length of the pipe sets the ...

From June 23 to June 27, middle and high school students from across the region participated in a weeklong youth robotics ...

The Casio SK-1 keyboard is fairly well-known in the “circuit bending” scene, where its simple internals lend themselves to modifications and tweaks to adjust the device’s output i… ...