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evaluation board

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evaluation board Customers Reviews

  • This is a really nice board

    posted by JuiceNL

    This is a really nice board to make a diy USB powered speaker driver. Powered from USB it probably doesn't use the full volume, as USB ports typically deliver between 100mA and 500mA, which is less than needed for max output. However, when using speakers that aren't really inefficient decent audio levels can be achieved. Since I love diy projects like these, I really like this board.
    Get the polarity right to avoid damage to your USB port. Use a multimeter to be sure. There is no diode on the board to protect it from wrong polarity, which is actually a good thing since diodes lower the voltage, of which you need all... So just be careful with it.
    For thuis price, it's awesome.
  • Cool device

    posted by dimmz

    A very good device. Transmission quality is much higher than in conventional car MP3 FM transmitter. Signal to noise ratio is very high. Using the power amplifier, you can put together a good FM transmitter. There is an interface for managing software.-----Un très bon appareil. La qualité de transmission est beaucoup plus élevé que dans la voiture MP3 transmetteur FM classique. Rapport signal sur bruit est très élevé. Utilisation de l'amplificateur de puissance, vous pouvez mettre ensemble un bon transmetteur FM. Il existe une interface de gestion de logiciel.
    You can connect the controller to the display for setting and displaying the frequency of the transmitter.---Vous pouvez connecter le contrôleur à l'écran de réglage et l'affichage de la fréquence de l'émetteur.
    Good device! Transmitter power enough for 300 meters line of sight. -----------------------------------
  • Impressive

    posted by piotrv

    You will need a strong and clear INPUT signal, so connecting a smart phone to 100W speakers will give you distortion when turning up the volume even a bit : )It is an amp after all, so it will not make any sound better or worse. It amplifies and it does this job very well. I am impressed with what you get for this price
    Best for amplifying voice
    You won't get any better for this price and size.price/quality ratio is beyond expectations
  • Great for DIY

    posted by mad666911

    -Very useful audio amplifier board for DIY speaker and robot...
    -Excellent sound quality and loud enought.
    -Good build quality.
    -Does what it say.
    I use few of these in my RC cars and robots and its loud enough for most voice and signaling application... but maybe not loud enough for a sound system...
    Buy it if you need to integrate sound in your DIY project.


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