Tuesday, September 23, 2014

Walking LED Circuit Diagram

 https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvHSWw6zdmlFQwqbzKz0lAu3Ei0oMgN48-BNrCQfP3WgtozoJPqRKxvniCT-dZny1-5-SrcdQqVVVQAgSCFBWi8wV5s-S_IH5Lfddn9RJDr-XoF8QpAkzU_ubHiXrzD6ONVRvWv7K5aZ_x/s320/led indicatior dance.gif

Components list:

    R1_____________10K 1/4W Resistor
    R2,R3__________47K 1/4W Resistors
    R4______________1K 1/4W Resistor
    R5,R6,R7______100K 1/4W Resistors
    R8____________820R 1/4W Resistor
    C1,C3_________100nF 63V Ceramic or Polyester Capacitors
    C2_____________10΅F 50V Electrolytic Capacitor
    C4____________330nF 63V Polyester Capacitor (See Notes)
    C5____________100΅F 25V Electrolytic Capacitor
    D1___________1N4148 75V 150mA Diode
    D2-D11_________5 or 3mm. LEDs (any type and color)
    IC1___________LM358 Low Power Dual Op-amp
    IC2____________4017 Decade counter with 10 decoded outputs IC
    M1_____________Miniature electret microphone
    SW1____________SPST miniature Slider Switch
    B1_______________9V PP3 Battery
    Clip for PP3 Battery
    Additional circuit parts (see Notes):
    R9,R10_________10K 1/4W Resistors
    R11____________56R 1/4W Resistor
    D12,D13 etc.____5 or 3mm. LEDs (any type and color)
    Q1,Q2_________BC327 45V 800mA PNP Transistors
    Q3____________BC337 45V 800mA NPN Transistor 

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