Serverless, peer-to-peer, local file sharing through sound

Transmit data with sound using Web Audio -- Javascript binding for libquiet

Transmit data with sound. Includes binaries for soundcards and .wav files.

Quiet for Android - TCP over sound

Transmit data using ultrasonic audio. Perfect for offline/network-free data transfer, automatic content recognition (ACR), and broadcast.

iOS framework for the Quiet Modem (data over sound)

Simplest ultrasonic ANTISPY voice recording jammer based on ATTINY13 / ATTINY85/45/25 / ARDUINO with PAM8403 / TPA3116D2 module driving piezo ultrasonic transducers (and optionally AD8933 signal generator)

PCF8574 library. i2c digital expander for Arduino, Raspberry Pi Pico and rp2040 boards, esp32, SMT32 and ESP8266. Can read write digital values with only 2 wire. Very simple to use and encoder support.

🤫 Quiet for React Native.

Minimalist library for Ultrasonic Module HC-SR04, PING))) and Seeed SEN136B5B to Arduino

Arduino lib for HCSR04 ultrasonic sensor

This project provides ROS drivers for Bosch Off-Highway sensor systems. (Radar Off-Highway Premium, Radar OHW, General Purpose Radar Off-Highway (GPR), Ultrasonic Sensor System OHW Entry & Premium)

Allows your device to communicate in an electronic sound language. Follow us on twitter: https://twitter.com/qrtone. Demo App in https://universite-gustave-eiffel.github.io/qrtone/

A 360° ultrasonic scanner

This library provides a code to measure the distance to obstacles in front and prints the distance value to the serial terminal or LCD.

开源多超声波读取模块，支持12通道的超声波模块，并利用通过ROS Topic 对数据进行发布

HCSR04 full-featured driver library for general-purpose MCU and Linux.

NewPing port for ESP8266 for the Arduino IDE

Arduino library for the Texas Instruments TDC7200 Time-to-Digital Converter for Time-of-Flight Applications in LIDAR, Magnetostrictive and Flow Meters

This is ultrasonic pest repellent device for bugs based on ATTINY85, resistors and PAM4803 amplifier with set of 40kHz ultrasonic transducers