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blue channel Customers Reviews

  • 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.
  • 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.
  • Light and fun toy car for a 3-8 years old child.

    posted by delwar

    The car is light weight and have a geeky designed outlook. I think most of the people will love it as it can easily remind me of my childhood. The remote is quite handy when you play with it. And easily adjust in a new hand.The basic function of the car is easy. Just turn on and off the switch to rollover on the ground or climb a wall. What I loved most about this is the order processing and delivery time.
    The car can be more realistic but I guess that would increase the price. More color variation of the product will be welcome.
    Overall I am satisfied with the order and the quality. In the price I think this is a great deal.
  • Good sound, features, low price

    posted by kentpeh

    Good sound quality.Strong and clear reception from FM radio.Flexibility to use 12V DC or 230VACBass and treble controls, but not on remote.
    Cheap and good quality sound.
    Worth buying if you have a pair of spare speakers lying around at home. After pairing it with my speakers, it's like a mini hifi. Could've provided a better remote control.
  • A good product of a affordable price.

    posted by mrajda

    Product of a good quality. Its price is affordable. The size of this product is small enough so that it can be placed for example in small robots. It can drive motors or other high loads thanks to the 10A relays. There is full acces to both terminals of each relay: to one that is « normally open » and to the second that is « normally closed ». This feature is not common in other boards having only normally open terminal.This board has optocouplers ensuring a good isolation between the high voltage circuit and the low voltage system circuit. This ensures safety of the projects based for example on Arduino boards and Raspberry-Pi in which I am currently using it. This is a good idea of placing LEDs indicating current status of relays. The system bus power can be separated from the relay bus power simply using a jumper.
    I would like to have the 8-relay option and another version with 12V relays.
    Probably I will order more of this board.

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