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    • Overall Rating: 4
    • Price: 5
    • Quality: 5
    • Ease Of Use: 3
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Workhorse H-Bridge

    posted by ggutshal on 11/07/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    At this price, why build your own? The board is populate with the L298N H-bridge chip affixed to an adequate heat sink. Inputs are presented on a header strip. Motor and power connections are presented on screw terminals. H-Bridge outputs are diode shun...
    Cons:
    Absolutely no documentation. It is easy enough to mess with a figure it out, I mean it's a L298N board, the old stand by... bu...
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    • Overall Rating: 4
    • Price: 5
    • Quality: 5
    • Ease Of Use: 3
    • Usefulness: 4
    2 DXPoints
    earned for this post
    Very useable magnetometer

    posted by ggutshal on 11/07/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Very small form factor. I2C interface so it doe not consume too many IO pins. The HMC5883 magnetometer is a pretty standard part in the microcontroller/robotic community. Libraries exist for arduino and netduino
    Cons:
    math is required to use this magnetometer as a compass. Calculating headings requires some complex higher order math functions...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Bluetooth can not get any easier

    posted by ggutshal on 11/07/2012 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month

    Pros:
    Comes in a convenient package. Small form factor. It is exceptionally easy to hook up and configure. Easily configured vi "AT" commands like a modem. Connects easily to Windows and Android.
    Cons:
    It would be far better if this item had documentation. Luckily a quick Google search turned up documentation that allowed me t...
    View Detail » 
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