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Korkonen

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  • Passive infrared motion sensor

    posted byKorkonen on 09/28/2015

    Passive infrared motion sensor (PIR) for your electronics projects. Pros: Small and nice unit that provides you with motion sensor capabilities in a cost effective manner. Cons: Would like to have even better control over the on-time period after... Read more

    Impression: Very good;

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  • I2C interface to character LCD display

    posted byKorkonen on 09/28/2015

    This handy little board provides you with an I2C interface to the popular character LCD displays therefore preserving some IO-pins on your Arduino / Raspberry Pi. Easy to use and does what it is supposed to do, can not really go wrong with this... Read more

    Impression: good;

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  • Car angel eye for closeup photography

    posted byKorkonen on 11/22/2014

    Bought this 15-white-LED car angel eye with a purpose of using it as a small ring light for closeup / macro photography. The opening and dimensions seem to fit quite nicely my lens system, but as typical with (cool) white-light LEDs, the color of... Read more

    Impression: handy;

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  • Nice reflector for bigger LEDs

    posted byKorkonen on 11/03/2014

    Pros: Nice metal-plated-plastic reflector for bigger COB LEDs. I have used it with a 50W LED and it performs as expected. Note that the form is assymmetric and therefore the light pattern will be also.

    Impression: Nice reflector;

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  • Good basic 16 x 2 LCD module

    posted byKorkonen on 11/03/2014

    Pros: The product is a good basic 16 x 2 character LCD display. Great for use with your favourite microcontroller in next project. You can not really go wrong with this basic display as there is also great software support for the controller.

    Impression: a very good display;

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  • Big and powerful COB LED

    posted byKorkonen on 11/03/2014

    Pros: This is a big and powerful COB LED. Plenty of light available from a fairly small package. Other: It is rated 50W and comes in a fairly small package. Not all the energy is converted to light and hence the LED will heat up quite a bit, so it... Read more

    Impression: Big and powerful;

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  • Nice COB LED with a reflector

    posted byKorkonen on 11/03/2014

    Pros: Nice COB LED with a matching reflector (plastic with a metal coating). The LED features a backplate which is easy to fasten to a heatsink with screws and big connector for easy soldering. I like the light pattern.

    Impression: Nice LED;

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  • Decent LED with a reflector

    posted byKorkonen on 11/03/2014

    Pros: This LED module is very bright, has good conductor leads to solder to (very easy) and has a matching reflector which is metal coated plastic. Cons: You have to be careful with the reflector not scratch or to get finger prints, otherwise a... Read more

    Impression: Decent LED;

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  • Nice color changing LED ball

    posted byKorkonen on 11/03/2014

    Pros: The product is a nice color changing LED ball with diffuse white surface. The color changing effect is gentle and pleasing to the eye. Cons: The structure within the ball is not entirely uniform leading to very slight un uniformity in the is... Read more

    Impression: Nice decoration;

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  • USB WIFI network adapter

    posted byKorkonen on 11/03/2014

    Pros: a small size WIFI/WLAN adapter for the USB port. The product features also a decent sized antenna to help in good transmission/reception. Other: I have used this adapter with my Raspberry Pi (model B) without problem.

    Impression: Nice Product;

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