Jul 23

Light-Controlled Alarm

Light Control Alarm-schematic-diagram

Light-Controlled Alarm Circuit Schematic Diagram

Light Control Alarm-circuit

Light-Controlled Alarm Board and Components Layout

 

Parts List

Resistor :

  • R1 …………………………………. 47K
  • R2 …………………………………. 330
  • R3 …………………………………. 150
  • R4,R5 …………………………….. 5,6K
  • R6 …………………………………… 1K

Variable Resistor :

  • VR1 …………………………….. 100K

Capacitor :

  • C1 ……………………………. 0,05uF
  • C2 ……………………….. 220uF/10V

Transistor :

  • TR1,TR3 ………………. FCS 9014D
  • TR2 …………………….. FCS 9012H

Semiconductor :

  • SCR ……………………….. EC103D

Other :

  • LDR …………………………. Cds-05
  • Speaker …………………. 8 ohm / 2″