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Raspberry Pi + HC-SR04 Ultrasonic Distance Sensor: Wiring, Code and Accuracy Tips

embeddedjourneys.com · published 10 November 2025

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https://www.tinytronics.nl/en/sensors/distance/waterproof-ultrasonic-sensor-jsn-sr04t

tinytronics.nl

https://www.aliexpress.com/item/1005005467178145.html?spm=a2g0o.productlist.main.38.73f22701bSX5br&algo_pvid=1f9a90ba-3f10-4d80-8107-8a1dc2122646&algo_exp_id=1f9a90ba-3f10-4d80-8107-8a1dc2122646-37&pdp_ext_f=%7B%22order%22%3A%223352%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21EUR%211.50%210.87%21%21%211.71%210.99%21%40211b81a317523490892086722edec2%2112000033197296308%21sea%21IE%210%21ABX&curPageLogUid=EOtfH3EuWyST&utparam-url=scene%3Asearch%7Cquery_from%3A

aliexpress.com

https://shop.mchobby.be/en/distance-proximity/561-hc-sr04-ultrasonic-sensor-3232100005617.html

shop.mchobby.be

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html

raspberrypi.com

https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf

cdn.sparkfun.com

https://pypi.org/project/RPi.GPIO/

pypi.org