Cirkit Designer Logo
Cirkit Designer
Your all-in-one circuit design IDE
Home / 
Project Documentation

555 Timer and Relay-Based Water Pump Controller

Image of 555 Timer and Relay-Based Water Pump Controller

Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a 555 Timer IC, resistors, a BC547 transistor, a 12V relay, a diode, alligator clip cables, a water pump, and an LM2596 voltage regulator. The circuit is designed to control a water pump using a 555 Timer IC and a relay, with various components interconnected to achieve the desired functionality.

Component List

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

Resistor (1M Ohms)

  • Description: A resistor with a resistance of 1M Ohms.
  • Pins: pin1, pin2
  • Properties:
    • Resistance: 1M Ohms

Resistor (200 Ohms)

  • Description: A resistor with a resistance of 200 Ohms.
  • Pins: pin1, pin2
  • Properties:
    • Resistance: 200 Ohms

BC547 Transistor

  • Description: A general-purpose NPN transistor.
  • Pins: Collector, Base, Emitter

12V Relay

  • Description: An electromechanical switch that uses a 12V signal to control a higher power circuit.
  • Pins: +, -, C, NC, NO

Diode

  • Description: A semiconductor device that allows current to flow in one direction only.
  • Pins: cathode, anode

Alligator Clip Cable (Green)

  • Description: A green alligator clip cable used for temporary connections.
  • Pins: Pin, Alligator

Alligator Clip Cable (Blue)

  • Description: A blue alligator clip cable used for temporary connections.
  • Pins: Pin, Alligator

Alligator Clip Cable (Red)

  • Description: A red alligator clip cable used for temporary connections.
  • Pins: Pin, Alligator

Water Pump

  • Description: A pump used to move water.
  • Pins: positive, negative

LM2596

  • Description: A voltage regulator used to step down voltage.
  • Pins: IN, OUT

Wiring Details

555 Timer IC

  • VCC+ is connected to:
    • Diode (cathode)
    • 12V Relay (-)
    • Alligator Clip Cable (Blue) (Pin)
    • LM2596 (OUT)
  • Rst is connected to:
    • Diode (cathode)
    • 12V Relay (-)
    • Alligator Clip Cable (Blue) (Pin)
    • LM2596 (OUT)
  • Th is connected to:
    • Resistor (1M Ohms) (pin2)
    • Alligator Clip Cable (Red) (Pin)
  • Out is connected to:
    • Resistor (200 Ohms) (pin1)
  • Trig is connected to:
    • Resistor (1M Ohms) (pin1)
    • Alligator Clip Cable (Green) (Pin)
  • GND is connected to:
    • Water Pump (negative)
    • Resistor (1M Ohms) (pin1)
    • BC547 Transistor (Emitter)
    • Resistor (1M Ohms) (pin2)
    • LM2596 (OUT)

Resistor (1M Ohms)

  • pin1 is connected to:
    • 555 Timer IC (Trig)
    • Alligator Clip Cable (Green) (Pin)
    • Water Pump (negative)
    • 555 Timer IC (GND)
  • pin2 is connected to:
    • 555 Timer IC (Th)
    • Alligator Clip Cable (Red) (Pin)
    • BC547 Transistor (Emitter)
    • LM2596 (OUT)

Resistor (200 Ohms)

  • pin1 is connected to:
    • 555 Timer IC (Out)
  • pin2 is connected to:
    • BC547 Transistor (Base)

BC547 Transistor

  • Collector is connected to:
    • Diode (anode)
    • 12V Relay (+)
  • Base is connected to:
    • Resistor (200 Ohms) (pin2)
  • Emitter is connected to:
    • Water Pump (negative)
    • Resistor (1M Ohms) (pin1)
    • 555 Timer IC (GND)
    • Resistor (1M Ohms) (pin2)
    • LM2596 (OUT)

12V Relay

  • + is connected to:
    • Diode (anode)
    • BC547 Transistor (Collector)
  • - is connected to:
    • Diode (cathode)
    • 555 Timer IC (VCC+)
    • 555 Timer IC (Rst)
    • Alligator Clip Cable (Blue) (Pin)
    • LM2596 (OUT)
  • C is connected to:
    • LM2596 (IN)
  • NO is connected to:
    • Water Pump (positive)

Diode

  • cathode is connected to:
    • 12V Relay (-)
    • 555 Timer IC (VCC+)
    • 555 Timer IC (Rst)
    • Alligator Clip Cable (Blue) (Pin)
    • LM2596 (OUT)
  • anode is connected to:
    • 12V Relay (+)
    • BC547 Transistor (Collector)

Alligator Clip Cable (Green)

  • Pin is connected to:
    • 555 Timer IC (Trig)
    • Resistor (1M Ohms) (pin1)

Alligator Clip Cable (Blue)

  • Pin is connected to:
    • Diode (cathode)
    • 12V Relay (-)
    • 555 Timer IC (VCC+)
    • 555 Timer IC (Rst)
    • LM2596 (OUT)

Alligator Clip Cable (Red)

  • Pin is connected to:
    • Resistor (1M Ohms) (pin2)
    • 555 Timer IC (Th)

Water Pump

  • positive is connected to:
    • 12V Relay (NO)
  • negative is connected to:
    • Resistor (1M Ohms) (pin1)
    • 555 Timer IC (GND)
    • BC547 Transistor (Emitter)
    • Resistor (1M Ohms) (pin2)
    • LM2596 (OUT)

LM2596

  • IN is connected to:
    • 12V Relay (C)
  • OUT is connected to:
    • Diode (cathode)
    • 12V Relay (-)
    • 555 Timer IC (VCC+)
    • 555 Timer IC (Rst)
    • Alligator Clip Cable (Blue) (Pin)
    • 555 Timer IC (GND)
    • Water Pump (negative)
    • Resistor (1M Ohms) (pin1)
    • BC547 Transistor (Emitter)
    • Resistor (1M Ohms) (pin2)

Code

There is no code provided for this circuit.