Lior Elazary KK6BWA

...because this life is yours. Some of it was given to you, the rest you make yourself.

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Lior Elazary
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Welcome to my website. Here you will find information on the various project I have for robotics, astronomy, sailing, Holiday display and other misalliances items. You can contact me at:

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  • Introduction to microcontrollers and electronics
    Misc Projects / Misc Projects

    Introduction to microcontrollers and electronics


    Basic Electronics


    Electricity is the movement of electrons. Electrons create charge, which we can harness to do work. Your light-bulb, your stereo, your phone, etc., are all harnessing the movement of the electrons in order to do work. They all operate using the same basic power source: the movement of electrons.

    There are three basic principles to electricity

    • Voltage is the difference in charge between two points. (The pressure)
    • Current is the rate at which charge is flowing.  (Flow)
    • Resistance is a material’s tendency to resist the flow of charge (current).


    Basic Electrical Components

    Battery - converts chemical energy into electricity

    Resistors - Resists the flow of electricity

    Capacitors - Stores electrons in an electric field

    Inductors - Stores electrons in a magnetic field

    Diodes - Only allows electrons to flow in one direction


    Ohm's Law


    Using Ohm's law to check the max current in the circuit.

    LED specs: -2V and 20mA or 0.02A Max


    Building the Circuit



    Resistors in parallel and series



    Using a microcontroller

    Using a microcontroller to control an LED


    Using a microcontroller to control a speaker



    Connecting the 8x8 LED matrix