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blue channel Customers Reviews

  • Easy to Use IR Sensor

    posted by gmeyerbr

    A very simple and easy to use IR sensor array with 4 sensor with independent adjustable sensibility. Very usefful to employ in auto guided robot cars instead of mechanical switchs with bumpers.
    The instalation and use are easy. Just pay attention for the board indications. To calibrate use a non reflective barrier and adjust the pots until the edge of response
    A simple sensor for robotics hobbyist.A big deal considering the price.
  • Remote control

    posted by MYSAK

    Good idea, simple execution.Perfect for my application.The product has a good range, battery life, I can not judge the driver because of the short time during which own the equipment.
    It would be a good test output.New products do not work good name of the supplier-DX.
    High costs in reclaiming.The second time I will think twice if you buy a similar product on the DX, or at home.
  • Work OK

    posted by crazytiti

    they're trimable.Light on : obstacle detectedlight off : nothing detectedyou can easily change wire to suit your needsthere's a hole on each sensor
    rainbow colored wire is a good ideathe trim set detector sensibility, so the emitter is always working at max, good for noise limitation, bad for current consumption.100mA leds off110mA leds on
    Do it's job ;)
  • Easy to use, high power relay module

    posted by bigjack65

    Really high quality product. Board is made of good material, relay tracks are large to manage hi power, there is a milling in the PCB to ensure insulation between power and control tracks. Every channel have it's own led as monitor. Driver and relay are decoupled with an optocoupler assuring kilovolt of protection. You can separate supply for driver and for relay.
    Important to say: relay driver has a NEGATIVE logic: relay is activated when input is tied to ground.
    Definitely a great product of great quality. I've just ordered another.
  • well build helicopter

    posted by jedicaz

    well built helicopter very good quality and comes with some really good radio gear.for advanced rc helicopter pilots would be so much fun ability to do stunts 3d flying comes with every thing you need to take out and fly it. apart from battery's for controller.
    This helicopter got so much potential so much you can adjust to suit your flying 3d flying im still a novices so im not really flying it to it full potentialbut will get there once get use to it properly and work out all the good settings.
    really nice looking helicopter good detail little lightly built try to avoid heavy crashes very complex main rotor and tail rotor setup but easy to adjust if you know what your doing not suitable for beginners.


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