• Same Methane sensors works differently!

    Hello everyone,

    I'm making a project with two Arduino Yùn which acquire Methane through MQ-4 gas sensors.

    I've built 3 couple of circuits to let them work correctly (using resistance of 20 Kohms) but in each of the three tests one sensor gave 900 parts…

  • liquid level sensor


    i am designing a remote monitoring system for a small solar water heater. in this set up the water vapor is condensed and is collected in a container.I need to find a suitable sensor for measuring the collected liquid level.The amount of liquid collected…

  • Looking for Water Proof, Miniature, Tension Sensor

    Looking for Water Proof, Miniature, Tension Sensor to be used to monitor the Tension on the the strings of a Kite Boarding Kite.


    I want to instrument a Kite Boarding Kite to measure line Tension.  I would like to mount the sensors in line on the flying…

  • Body Weight Measurement

    I am trying to make an insole (shoe sole) system to measure body weight. Unable to find a suitable sensor for that. Please suggest a suitable sensor that can monitor body weight and which work better than force sensitive resistors in accuracy and lesser…

  • Low cost Water TDS and EC sensor

    Dear all I am working on IoT based river water pollution monitoring system. I am finding some low cost and reliable source for TDS and EC sensors. I have found this one https://www.sparkfun.com/products/retired/11193 but it is retired and cost is too…

  • Using Omron Thermal Sensor

    Hello Friends,


    Has anyone used OMRON D6T thermal sensor to detect the presence of stationary human beings ?




  • Sensor to detect Human Presence

    Hello Friends,


                        Is there any sensor to detect human presence . Am aware of PIR (Passive Infra Red) sensor , which would human motion but not the human presence . Another way is by using image processing technique. Kindly suggest me a better solution

  • 3D MEMS Sensor

    We're working on developing an electronic personal trainer. When we started, we couldn't find an easy to use, plug and play system that could collect all the data and give us the measurements we needed... so we built one ourselves. It's comprised of three…

  • Digitally Addressable Sensors?

    I need to come up with a way to daisy chain a number of sensors together and uniquely read the high/low pin from them individually. Think Digital RGB LED http://www.adafruit.com/products/306 or I2C. I like how when you power the LED strip up, it assigns…

  • Temperature sensor for MSP430 LaunchPad



    I'm looking for temperature sensors for my MSP430 Launchpad.  I'm a software engineer and i'm not very familiar with the hardware.


    My project : I want to add an automatic valve to my pool sun-heater system so it opens only when the water…

  • Help trouble shooting new PCB design

    I started designing a small sonar bottom profiling based off an old design that worked but the manufacturer went out of business and the tech was old and needed improvements. I started by having an electrical engineering company duplicate the original…

  • Sensor to detect foot steps on floor



    I am thinking of trying person identification through their foot step sound / vibration. This is should be entirely possible because humans can do it and some research papers exist on this topic. But here comes the question:


    Which (low cost) sensor…

  • Brainstorm: Basketball Score Keeper



    I am working on a basketball hoop that can keep track of the number of shots made. I have made my first iteration and it works well enough. I basically have a long limit switch sticking into the hoop that is attached to an Electric Imp. While this…

  • Looking for odor sensor

    I'm looking for an odor sensor--specifically, one that senses those bathroom odors that make people reach for the air conditioner.


    I realize it's possible to hook up a methane detector near the, ahem, exhaust, but this will only detect some odors.…

  • Pressure sensor analog output does not make sense.

  • Please Help: Air/Gas Sensor & Detection

    We are interested in developing a device that would sample the ambient air in an enclosed space & produce a data set that can be compared to an external database, for approximate matches.

    We would like to use some type of infared spectrometer with…

  • Help for CC2541 SensorTag from TI

    Hello guys,


    I'm coming to you with a question regarding the sensor CC2541. I've been looking through the datasheet lately but I couldn't possibly find how I can change one special value:


    I'm trying to parameter the gyroscope so that it could…

  • Gertboard and MPXV4115VC6U-IC, PRESSURE SENSOR

  • Make a sensor at home


      Please i am asking if there is a way that a sensor could be made at home that is DIY sensor or can they be only manufactured industrially

  • Roadtest: Freescale Xtrinsic Accelerometer Cube Demo

    Have you ever wanted an easy method to add motion detection to your project?  

    Want to try out an accelerometer but don’t know how to interpret the data coming out? 


    Freescale has developed a simple module that allows you to do both by combining an accelerometer…

  • Freescale MEMS senses tilt for smart meter tamper prevention

    Extracted from the publication of R. Colin Johnson on EETime website 8 November 2012



    Sensing "tilt" in old style pinball machines used a mechanical ball-in-tube sensor, but the micro-electro-mechanical system (MEMS) version should harness a tri-axis accelerometer…

  • Chrysler trying a simpler touch

    Extracted from the publication of Craig Trudell, Bloomberg News on The Windsor Star website 27 November 2012


    Chrysler Group LLC is emerging a leader in touch screens by letting Ford Motor Co. and General Motors Co. jump ahead and stumble.


    Blunders with…

  • A day without MEMS

    Extracted from the publication of Karen Lightman on EETimes website 27 November 2012


    MEMS devices are everywhere. They have permeated almost every aspect of our lives, forever altering our interaction with our digital environment. Unknowingly, we take…

  • Latest Freescale Wireless Robot Can Walk, Dance and Teach Sensor Programming

    Source: Freescale Semiconductor News Release



    Tower System mechatronics robot and board enable rapid sensor application development with easy-to-use programming language and expanded capabilities

    Freescale Semiconductor announced March 26th 2012 significant…

  • Freescale Xtrinsic MAG3110 Magnetic Sensor demo [video]

    Freescale's first three-axis magnetometer, the Xtrinsic MAG3110 is a low-power, small-profile sensor that delivers enhanced digital electronic compass (eCompass) functionality for location-based services (LBS) such as navigation, dead-reckoning and location…