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

 

solder-less-diy-multiple-hobby-project-kit-using-555-timer-op-amp-1

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