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555 Timer IC LED Flasher Circuit with 9V Battery

Image of 555 Timer IC LED Flasher Circuit with 9V Battery

Circuit Documentation

Summary

This document provides a detailed description of a circuit that utilizes a 555 Timer IC to drive an LED. The circuit is powered by a 9V battery and includes resistors and a capacitor to configure the 555 Timer IC in astable mode, which causes the LED to blink at a specific frequency.

Component List

  1. 555 Timer IC

    • Description: A versatile timer IC used for generating precise time delays or oscillation.
    • Pins: VCC+, Dis, Th, CV, Rst, Out, Trig, GND
  2. 9V Battery

    • Description: A standard 9V battery used to power the circuit.
    • Pins: +, -
  3. Resistor (100k Ohms)

    • Description: A resistor with a resistance of 100k Ohms.
    • Pins: pin1, pin2
  4. Electrolytic Capacitor (10 Farads)

    • Description: A capacitor with a capacitance of 10 Farads.
    • Pins: +, -
  5. Resistor (10k Ohms)

    • Description: A resistor with a resistance of 10k Ohms.
    • Pins: pin1, pin2
  6. LED: Two Pin (red)

    • Description: A red LED with two pins.
    • Pins: cathode, anode
  7. Resistor (220 Ohms)

    • Description: A resistor with a resistance of 220 Ohms.
    • Pins: pin1, pin2

Wiring Details

555 Timer IC

  • VCC+ is connected to the + pin of the 9V Battery.
  • Dis is connected to pin1 of the 100k Ohms Resistor and pin1 of the 10k Ohms Resistor.
  • Th is connected to the + pin of the 10 Farads Electrolytic Capacitor and pin2 of the 100k Ohms Resistor.
  • Out is connected to pin1 of the 220 Ohms Resistor.
  • Trig is connected to the - pin of the 10 Farads Electrolytic Capacitor and pin2 of the 10k Ohms Resistor.
  • GND is connected to the - pin of the 9V Battery and the cathode of the red LED.

9V Battery

  • + is connected to the VCC+ pin of the 555 Timer IC.
  • - is connected to the GND pin of the 555 Timer IC and the cathode of the red LED.

Resistor (100k Ohms)

  • pin1 is connected to the Dis pin of the 555 Timer IC and pin1 of the 10k Ohms Resistor.
  • pin2 is connected to the Th pin of the 555 Timer IC and the + pin of the 10 Farads Electrolytic Capacitor.

Electrolytic Capacitor (10 Farads)

  • + is connected to the Th pin of the 555 Timer IC and pin2 of the 100k Ohms Resistor.
  • - is connected to the Trig pin of the 555 Timer IC and pin2 of the 10k Ohms Resistor.

Resistor (10k Ohms)

  • pin1 is connected to the Dis pin of the 555 Timer IC and pin1 of the 100k Ohms Resistor.
  • pin2 is connected to the - pin of the 10 Farads Electrolytic Capacitor and the Trig pin of the 555 Timer IC.

LED: Two Pin (red)

  • cathode is connected to the GND pin of the 555 Timer IC and the - pin of the 9V Battery.
  • anode is connected to pin2 of the 220 Ohms Resistor.

Resistor (220 Ohms)

  • pin1 is connected to the Out pin of the 555 Timer IC.
  • pin2 is connected to the anode of the red LED.

Code

There is no microcontroller code associated with this circuit.