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detection module

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detection module Customers Reviews

  • High Quality Component!

    posted by brettcarroll

    Small size. (less than 3/4 x 3/4 inches)Resistor onboard.3 pin interface. (GND,VCC,SENSOR)Includes holes for mounting and solder points for chaining other switches (in parallel)Super cheap!
    This is a very simple component.Great for use as a CNC limit switch.Has extra solder points for adding an LED.Switch is normally open.May need to twist/turn the magnetic switch to get it to activate properly when a magnet is place over the switch.
    If you are looking for an easy to use magnetic switch, you can't go wrong with this little board.
  • Ease to use, cheap and very different sensor

    posted by margrilo

    Very cheap product.Good quality product, circuit assembly and circuit design.Works on both digital or analogic way.Has a screw hole for wall mountingHas potentiometer to configure sensitivity for digital trigger optionindicative LEDs
    very nice sensor. For a home automation project as i am doing. this is a very nice sensor to implement security on kitchen or other ambientsit works just fine and it's is very sensitive only to flame (light) not to any lamp or ambient light.you can use both analog modeby reading the analog pin flame presence -> value ~20)no flame -> value ~ 900or digital mode, by reading a digital output, which is turned on by a comparator chip that has the trigger regulated through the potentiometer.
    buy this sensor if you intend to built any project that need to be sensitive to flame light. somewhere i read that is is somehow sensitive to the temperature, but i couldn't verify that.but for projects on home automation or security issue, this will fit just fine.
  • Very good Humidity sensor

    posted by pucheta

    * Cheap humidity sensor. Great price* Good for use with arduino or in another microcontroller circuit* Robust construction* Easy connect and to use
    * Too much time to arrive :(But maybe that is not fault of DX, is problem with courier.* I have tested the sensor and it seems to work fine. I connected to an arduino and i put the sensor in soil, then i watered the soil. The sensor (through arduino) showed me the changes in humidity value. Very good! :)
    Very good sensor at very good price.
  • okay

    posted by Troncs

    FC-28-C Soil Moisture Detection Control Module + Soil Humidity Sensor - Blueproduct of excellent workmanship. packaged well. running perfectly.
    recommend to all. in site search easily think about the tutorial script to compile this function. It's a a great deal. The price is excellent for a original board and you. The shipment was fast, I got it within 1.5 weeks. It was packaged in a carton box within a bubble wrap envelop. No damage during shipment whatsoever.
    Good deal.
  • Work better than I expect.

    posted by KornJ

    Easy to use with just only a transistor (or other) needed to amplify, buffer the output.Include the control over sensitiveness and time.Very good range and sensitive even at "middle" setting. Even a centimeter of hand movement can be detected at range of 3 meter.Very wide angle of detection, don't need to point directly at target position (also can be a Cons in some situation).
    none.
    Very good product and price. I'm not sure if this module alone can drive current-hungry components like motor or relay (I always throw 1 transistor in every sensor-liked component just to be safe).

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