Comments on: Interfacing HC-SR04 Ultrasonic Sensor with Raspberry Pi

By: Nishant Parmar

Nishant Parmar — Fri, 29 Jun 2018 16:04:23 +0000

In reply to Ben. If you are following the aforementioned circuit diagram, try using different pin numbers (worked for me with pin numbers 16 and 18, instead of 23 and 24 respectively).

By: Christian Digaum Cantos

Christian Digaum Cantos — Mon, 22 Jan 2018 04:21:00 +0000

how can i put the data on the QT desinger?

By: UNNIKRISHNAN M

UNNIKRISHNAN M — Sat, 28 Oct 2017 08:45:00 +0000

using this code can i get continuously the water depth

By: Pagaltubbu

Pagaltubbu — Sun, 06 Aug 2017 01:39:00 +0000

In reply to Subhajit Biswas. I am having the same issue, despite checking my circuit diagram. Were you able to resolve your issue? If yes, please let me know how. Thanks!

By: Deepthi

Deepthi — Fri, 03 Mar 2017 06:37:00 +0000

when we get out of range can we send that message to our phone?? do we have any code for that??

By: David James Moore

David James Moore — Mon, 06 Feb 2017 14:15:00 +0000

Thank you I have used your example to build a basic rig, I am planning on coding a C++ version to store values in a database for historic reporting and alerting. You have really helped start me my project.

By: Ligo George

Ligo George — Sun, 27 Nov 2016 07:09:00 +0000

In reply to Kartik Hadke. Yes, for sending emails anyway you need internet connection.

By: Kartik Hadke

Kartik Hadke — Thu, 22 Sep 2016 14:45:00 +0000

In reply to Ligo George.

but that will require internet connection
so how to do that??
internet connection on raspberry pi will u explain.

By: Ligo George

Ligo George — Sat, 27 Aug 2016 16:15:00 +0000

In reply to Tiago Carvalho. Make sure that you have python gpio library.

By: Ligo George

Ligo George — Sat, 27 Aug 2016 08:03:00 +0000

In reply to Subhajit Biswas. It seems like there is some connection mistake.