Categories

Posts Tagged ‘ultrasonic’

Ultrasonic parking sensor

Tuesday, December 20th, 2016

An ultrasonic parking sensor project from Ch00ftech: After electing to use the PING))) sensor exactly as directed, I needed to build the rest of my circuit.  I wanted to build something robust that would mount nicely on the wall of my dad's garage.  Figuring that the sensor would likely need to...

Tags: , ,
Posted in sensors | No Comments »

Build an Arduino based sonic pest repeller

Monday, June 9th, 2014

Just in time for Summer, here's a design for a sonic pest repeller. Carla Schroder developed this project which uses an Arduino Uno along with the WAVE shield and a Maxbotix ultrasonic rangefinder. This simple yet reportedly effective design senses critters nearing your garden plot and plays sound files (stored...

Tags: , , ,
Posted in Arduino, open source, sensors | 4 Comments »

Temperature compensation for an Arduino ultrasonic distance sensor

Friday, May 30th, 2014

Sverre Holm writes:Ultrasonic distance sensors can find the range out to 2-4 meters and are popular in e.g. robotics. Here I look at how the accuracy can be improved by compensating for the variation of speed of sound with temperature. It actually varies quite a lot in air and around...

Tags: , ,
Posted in Arduino, sensors | 1 Comment »

A simple posture sensor

Thursday, April 24th, 2014

Here's a simple cure for your posture and the back pain blues, a posture sensor by Wingman: The simplest distance sensors are ultrasonic or infrared sensors. I went with a SR-HC04 because it is cheap and sufficiently precise. There are no special requirements to the controller so I am using an Attiny85. A...

Tags: , ,
Posted in hacks, sensors | 10 Comments »

DIY ultrasonic range finder

Wednesday, November 30th, 2011

Zipppys123 is building a DIY ultrasonic range finder based on this design. Once it's externally triggered a PIC12C508 is used to generate generate the ultrasonic pulse, and measure its echo. The ultrasonic pulse is amplified using a MAX232 TTL-to-RS-232 level converter, while the echo is amplified and demodulated using two...

Tags: , ,
Posted in project logs | No Comments »

App note: Implementing ultrasonic ranging on PIC16 microcontrollers

Saturday, October 29th, 2011

This app note by Microchip describes how to implement ultrasonic ranging on their PIC16 family of microcontrollers. Object ranging is essential in many types of systems. One of the most popular ranging techniques is ultrasonic ranging. Ultrasonic ranging is used in a wide variety of applications including: • Autofocus cameras...

Tags: , ,
Posted in app notes | No Comments »

7400 competition entry: TTL based range finder

Friday, October 21st, 2011

[embed]http://www.youtube.com/watch?v=umTaJH-2pLM[/embed] Udif entered the TTL based range finder into the Open 7400 Logic Competition. It uses an ultrasonic sensor to determine the distance to an object. The sensor outputs a pulse, the width of the pulse is proportionate to the distance measured. The sensor signal drives a clock which in...

Tags: , ,
Posted in 7400 contest | 1 Comment »

HC-SR04 ultrasonic Arduino library

Monday, October 17th, 2011

Carl Nobile has developed and released an Arduino library covering the HC-SR04 ultrasonic sensor. He writes: "It features timing, metric conversion, and standard deviation methods, plus a few support methods. It is written in C++ to conserve the namespace. The conversion formula can be easily modified to optimize the accuracy...

Tags: ,
Posted in Arduino, code, sensors | 12 Comments »

Arduino-based Tacit Project assists visually impaired

Tuesday, August 23rd, 2011

The Tacit Project from Grathio Labs is developing a wrist mounted sonar assistive device for the visually impaired. The hardware includes Parallax Ping ultrasonic sensors mounted in the glove which send distance measurements to an Arduino. The Arduino then activates small hobby servos to vibrate in the glove to communicate...

Tags: , ,
Posted in Arduino, sensors | 1 Comment »

picoBAT: ultrasonic bat detector

Thursday, January 27th, 2011

Think you have bats in the belfry? If you have a PIC 12F683, ultrasonic piezo receiver and piezo speaker, micro-examples has a project that purports to detect the presence of bats and sound a piezo alarm. The schematic and C source are available for download. We can envision a modification...

Tags: , ,
Posted in code, PIC, sensors | No Comments »

Recent Comments

  • Cyk: Well, this is an application that I'd solve with an Android smartphone. Used Moto G phones can be found on Ebay for ~€30, and thanks...
  • Noy: Yuuup
  • Vibhore: I'm waiting. *Fingers_crossed
  • KH: I guess this is a failed attempt at making a pass/fail cable tester out of discrete ICs. A single pass/fail LED is not that useful....
  • Max: Considering it only seems to test that all wires conduct, I'm not sure what exactly does this show you that 7 LEDs each powered through...