This circuit will help you to make a Light Sensitive Morning Alarm circuit using limited components.
The morning light or other light is sensed by an LDR (Light Dependent Resistor) or Photoresistor and it triggers the alarming section. The circuit generates a melodious alarming tone when light falls on it.
Wire-up the circuit as shown in schematic diagram and place the LDR next to the window pane closer to your bed. Since the LDR is more sensitive to light, so make sure it will not be false triggered.
The electronic components used in this circuit is cheap, so you can make this at your own home at very low cost and it consumes very less power, hence it ensures long working life.
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