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    • Overall Rating: 4
    • Price: 3
    • Quality: 3
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Dual Axis Motor and Reduction Gear

    posted by NektariosSp on 08/14/2013 Certified Owner

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

    Pros:
    Great item for DIY projects, like little cars, R/C models, quick development on micro-Controlled little cars. Can run for quite a long time, if powered up with relatively low voltage and there is elementary ventilation of the place installed.
    Cons:
    I would suggest another model, with higher reduction on the rotation speed on the wheel output. When a wheel is to be put on th...
    View Detail » 
    • Overall Rating: 4
    • Price: 3
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Car Wheels

    posted by NektariosSp on 08/14/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

    Pros:
    Good item to buy for little DIY projects, involving micro-Controllers, R/C games and others. It runs quite nice, with low voltage (e.g. 2.5 Volts DC) as well as much higher voltage (e.g. 8.0 Volts DC). Ideal for quick installation for micro-Controller PWM c...
    Cons:
    A screw must be placed on the shaft, through the wheel, to keep the wheel in place, otherwise it comes out relatively easy.
    View Detail » 
    • Overall Rating: 5
    • Price: 4
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    DC Voltage Regulator

    posted by NektariosSp on 08/14/2013 Certified Owner

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

    Pros:
    Great piece. Quite useful. Not possible to build one, using ordinary 7805, cables and a USB socket. Works fine, but I have not tested it running to the current limits. Great for installation in cars, DIY projects and of course, for connecting any USB powere...
    Cons:
    Perhaps a power LED could be useful, installed on the regulator box, to indicate that the is power on the output, when power is...
    View Detail » 
    • Overall Rating: 4
    • Price: 3
    • Quality: 3
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Angular Vernier

    posted by NektariosSp on 08/14/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

    Pros:
    I bought this item, in order to measure angles with high accuracy. Unfortunately it arrived in a broken case, but in good condition - in general.
    Cons:
    The little triangular part in the middle of the instrument, used to keep the rotating part in place is made out of pour materia...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Great Toy For Children

    posted by NektariosSp on 08/14/2013 Certified Owner

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

    Pros:
    This toy is great for children older than three years. It starts moving, as soon as Sun light falls on the photovoltaic panel on the top of the car. Unfortunately, the photovoltaic panel is not sensitive to the wavelength of my LED flash light, otherwise, i...
    Cons:
    I have no Cons.
    View Detail » 
    • Overall Rating: 5
    • Price: 4
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Great Flow Sensor

    posted by NektariosSp on 08/14/2013 Certified Owner

    Involvement:Expert (understands the inner workings) - Ownership:less than 1 day

    Pros:
    This flow sensor is great for measuring liquid flow. It works easily. Just connect the Red and Black wires to + and - leads, respectively and count the pulses on the white wire. It works fine on 3.3 Volts (micro-Controller use), as well as higher voltages (...
    Cons:
    I have no Cons.
    View Detail » 
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