Solderless DIY Multiple Hobby Project Kit Using 555 Timer & OP-Amp

Solderless DIY Multiple Hobby Project Board build around 555 Timer & OP-Amp, Bord provided with Male header connectors for easy solder less connections using Female Header wire jumpers. On board diode for reverse supply connections , Slide switch for ON/OFF

Supply : 9V DC PP3 Battery

Inputs :   Magnetic Filed Sensor, LDR Light Sensor. NTC Temperature Sensor, Tilt Mercury Switch, Variable Resistor POT, Two Tactile Switch

Outputs : Speaker, Buzzer, White LED, Red LED

 

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solder-less-diy-multiple-hobby-project-kit-using-555-timer-op-amp-2

 

 

 

solder-less-diy-multiple-hobby-project-kit-using-555-timer-op-amp Circuit

solder-less-diy-multiple-hobby-project-kit-using-555-timer-op-amp Circuit

 

 

solder-less-diy-multiple-hobby-project-kit-using-555-timer-op-amp PCB

solder-less-diy-multiple-hobby-project-kit-using-555-timer-op-amp PCB

Possible Projects

  • Adjustable Timer with alarm
  • Adjustable Timer LED
  • Fix Timer Alarm
  • Fix Timer LED
  • RED LED Flasher
  • White LED Flasher
  • Warning Alarm
  • Metronome
  • Light Sensitive To LED Flasher
  • Light Sensitive Audio Sound Effects
  • Bird Sound
  • Tilt Alarm
  • Tilt LED
  • Adjustable Audio Frequency
  • Adjustable LED Flasher
  • LED Intensity Controller
  • DC Motor Speed Controller
  • Temperature Sensitive Alarm
  • Temperature Sensitive LED
  • Magnetic Filed to Audio Sound Effects
  • Magnetic Field To LED Flasher
  • LED ON/OFF with Tactile Switch
  • Red & White LED Flasher

 

AC Solid State Relay Traic & Opto-Coupler Based

Solid State AC Relay Descreet Circuit Using Traic (1)

Solid State Relay Switch is a simple project  which will help you control (ON / OFF) a single high power circuit from a low power drive.

DOC

  • Load – 24 to 240 VAC @ 500 W
  • Trigger voltage – 2 to 5 VDC (TTL) @ 10 mA
  • Input isolated with use of Optocoupler
  • Power Battery Terminal (PBT) for easy input 230 VAC mains and load connection
  • Terminal pins for connecting input trigger signal
  • Heatsink for TRIAC
  • Four mounting holes of 3.2 mm each
  • PCB dimensions 29 mm x 74 mm

Solid State AC Relay Descreet Circuit Using Traic (3)

Solid State AC Relay Descreet Circuit Using Traic (2)

Solid State AC Relay Descreet Circuit Using Traic (1)

Moisture Sensitive Alarm Circuit Using BC547 Transistor and PCB Based Sensor

MOISTURE SENSITIVE ALARM B

Circuit here is moisture sensor sounds an alarm when water reaches its sensor or moisture level is very high in the air. This project is a simple and a cost effective project for use in home or industrial purpose.

DOC

  •  Power Supply Input – 6 VDC @ 25 mA
  •  Output – Buzzer
  •  Onboard On/Off Switch
  •  Sensor PCB included
  •  Terminal pins for connecting power supply
  •  Four mounting holes of 3.2 mm each
  •  PCB dimensions 63 mm x 42 mm

MOISTURE SENSITIVE ALARM (3)

MOISTURE SENSITIVE ALARM (2)

MOISTURE SENSITIVE ALARM (1)

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