Circuits & Schematics: net - 3

21. Simple Wireless Security System
    Circuits Security Wireless
    Overview The “Simple Wireless Security System” monitors the open/closed state of two (garage) doors. Sensors detect the state of the doors, and a Zigbee wireless transceiver sends the state information to a PC. The PC runs a GUI ...
    25-06-2010

22. Wireless Keylogger - Do It Yourself! Part 2
    Circuits Wireless Microcontrollers Usage
    .. displaying intercepted keystroke data through the virtual COM port (equivalent to Hyperterminal). Requires the Microsoft .NET Framework . AT91 In-System Programmer (ISP) installer Software for flashing firmware using the SAM-BA bootloader ...
    20-07-2010

23. Audio spectrum analyzer on PIC32
    Circuits Audio Measurement Microcontrollers Usage
    .. diagram Here’s source code for this project. The code is written for Microchip MPLAB C32 compiler. mehilainen.homeip.net
    26-10-2010
24. Mains Slave Switcher
    Circuits Power
    .. insulated and the circuit enclosed in a box to make it inaccessible to fingers etc. when it is in use. extremecircuits.net
    11-12-2010
25. Wind Generator Dump Load
    Circuits Wind Energy Power
    .. onto the cabling. There are 15V zenners across each MOSFET to stop the gate-source voltage getting to dangerous levels. qsl.net
    13-12-2010
26. Car NiCad Charger
    Circuits Power
    .. 12 ohms/0.5W D 1500mA 12 ohms/0.5W D 4000mA 3.3 ohms/2W (High Capacity) R4 value at 14hrrate Pin Configuration freecircuits.net
    09-01-2011
27. 5 volt charger adapter using LNK616PG controller
    Circuits Supply Power Power Integrations LNK616PG
    .. , from 85 VAC up to 265 VAC and will provide a fixed 5 volt DC output at a maximum output current of 1 ampere. electroniq.net
    14-01-2011
28. Automotive 12V to +-20V converter (for audio amplifier)
    Circuits Auto-Audio Supply Power
    .. battery to converter. Transformer design The transformer must be of correct size in order to carry the power needed, on the net there are many charts showing the power in function of frequency and core size for a given topology. My transformer ...
    14-01-2011
29. High resolution stopwatch for cents
    Circuits Measurement
    .. [2] Gingl Z 2011 Sub-$10 photogate variants Phys Teach. submitted, Arxiv preprint arXiv:1101.0608 [3] http://sourceforge.net/projects/audacity/ [4] http://www.noise.physx.u-szeged.hu/edudev/stopwatch [5] http://www.farnell.com, order codes: ...
    07-03-2012
30. Short-Circuit Protection in DC Low-Voltage Systems
    Circuits Power
    .. connect the mains power cord to feed 230V AC to the transformer. Connect LED1 and LED2 for visual indication. pecworld.zxq.net
    28-03-2011

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