![GitHub - solacese/raspberry-pi-ultrasonic-sensor-mqtt: A demo app that integrates an HCSR04 proximity sensor on a Raspberry PI with an MQTT publisher GitHub - solacese/raspberry-pi-ultrasonic-sensor-mqtt: A demo app that integrates an HCSR04 proximity sensor on a Raspberry PI with an MQTT publisher](https://raw.githubusercontent.com/fivdi/pi-io/master/doc/hc-sr04-two-pin.png)
GitHub - solacese/raspberry-pi-ultrasonic-sensor-mqtt: A demo app that integrates an HCSR04 proximity sensor on a Raspberry PI with an MQTT publisher
GitHub - alaudet/hcsr04sensor: Python module for measuring distance and depth (metric or imperial) with a Raspberry Pi and HC-SR04 sensor
![RPi::HCSR04 - Interface to the HC-SR04 ultrasonic distance measurement sensor on the Raspberry Pi - metacpan.org RPi::HCSR04 - Interface to the HC-SR04 ultrasonic distance measurement sensor on the Raspberry Pi - metacpan.org](https://stevieb9.github.io/rpi-hcsr04/hcsr04.png)
RPi::HCSR04 - Interface to the HC-SR04 ultrasonic distance measurement sensor on the Raspberry Pi - metacpan.org
![GitHub - StuartSmith/Raspberry-Pi-Control-UltraSonicSensor: Control an Ultra Sonic Sensor from a Raspberry PI. This samples demonstrates how to do this using a window universal application to run the ultra sonic sensor. GitHub - StuartSmith/Raspberry-Pi-Control-UltraSonicSensor: Control an Ultra Sonic Sensor from a Raspberry PI. This samples demonstrates how to do this using a window universal application to run the ultra sonic sensor.](https://raw.githubusercontent.com/StuartSmith/RaspberryPi-Control-UltraSonicSensor/master/Images/UltraSonicWiringBySelf.jpg)