Piezo Element Amplifier for Guitar and Violin
Sensor

Piezo Element Amplifier for Guitar and Violin

The board presented here is a preamplifier for contact microphones that are used for amplifying the sound of musical instruments which do not contain electrical pickups, such as guitar and violins. Most contact microphones use a piezo element to convert vibration in the body of the...

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Maxim Integrated MAX77501 Piezo Haptic Actuator Boost Driver
IC

Maxim Integrated MAX77501 Piezo Haptic Actuator Boost Driver

Maxim Integrated MAX77501 Piezo Haptic Actuator Boost Driver is a high-efficiency controller driver for piezo haptic actuators. The driver is optimized for driving up to 2µF piezo elements. It can generate a single-ended haptic waveform of up to 110VPK-PK amplitude from a 2.8V to 5.5V...

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Firefly – an annoying little thing
Mcu

Firefly – an annoying little thing

Here's a tiny pcb that produces an annoying sound using a piezo buzzer and a ATtiny13 microcontroller. It uses an LED, piezo buzzer, ATTINY13 Atmel microcontroller, a very small amount of Arduino code, and a coin cell battery that should last about a week. Battery life could be...

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Arduino Proximity Alarm
Arduino

Arduino Proximity Alarm

Lucas Reed @ instructables.com has build a proximity alarm using Arduino and an ultrasonic sensor from Parallax. If a nearby object is approaching then the alarm will sound and an RGB LED will light up. He writes: An ultrasonic rangefinder and Arduino microcontroller will check for...

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Piezoelectric motor demo
Motor

Piezoelectric motor demo

Quick demonstration of a piezoelectric motor from www.pcbmotor.com Piezoelectric motor demo -...

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