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    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Smallest Boost Converter i could find

    posted by Hexacat on 12/08/2012 Certified Owner

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

    Pros:
    Cheap and small Boost driver. Output seems regulated only between 1,8 V and 3 V, output current is ~600mA, output Power ~1,7W. Efficency was about 70-76%.
    Cons:
    Not realy regulated outside of the operating range. Also does not work regulated with higher Output voltage.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 5
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Focusable! Lasermodule

    posted by Hexacat on 12/07/2012 Certified Owner

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

    Pros:
    Great 405nm Module. This module IS focusable! The lensholder is glued, but if you heat he brass to around 50°C it was possible to unscrew the lens. Remove it completely to clean it from the glue. If it is focused on a small dot, you can even burn things!
    Cons:
    Epoxy at the diode/Driver. But you can remove it with a sharp knife.
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 5
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Nice and cheap PIR Module

    posted by Hexacat on 10/13/2012 Certified Owner

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

    Pros:
    Easy to use motion detector with variable sensitivity and variable output-High time (2 sec ... few minutes). Output High-Level is 3,3 V, an 1k resistor is already on the board so you can connect the base of an Transistor or a LED directly to the output.
    Cons:
    The Ti-Time (During this time period, triggering is inhibited) was to long (approx 3 sec) for my application. I changed R12 (1 ...
    View Detail » 
    • Overall Rating: 5
    • Price: 5
    • Quality: 4
    • Ease Of Use: 4
    • Usefulness: 5
    2 DXPoints
    earned for this post
    Better than expected

    posted by Hexacat on 07/07/2010 Certified Owner

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

    Pros:
    Some additional features: Press the Play/Pause button for a few seconds and the tracks are played random (RAN is displayed). Press it again and FLO is displayed. The next funktion is ONE and at last normal playback (ALL). Backlit Dot-Matrix LCD. The device ...
    Cons:
    A manual would be neat. The 5V Voltage regulator a linear one, so the device is getting warm on one side.
    View Detail » 
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