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:: Home » Light Alarm Circuits

Light Alarm Circuits

Simple Sunrise Alarm Circuit Diagram

Last Updated on: March 13, 2025 by Apichet Garaipoom
Let's build simple Sunrise alarm circuit

This is Morning sun alarm circuit using IC-4011 that hobby It will have sound alarm when morning like a normal clock alarm with lighting sensor same clock. Read more

Categories Sound Generators, Oscillator circuits Tags IC-4011, LDR sensor, Light Alarm Circuits 7 Comments

Simple Light Detector Alarm with solar sensor

Last Updated on: July 17, 2024 by Apichet Garaipoom
Simple Light Detector Alarm

This is Simple Solar light alarm circuit with the special edition, that improve this circuit whole new to higher efficiency. use solar cell instead of LDR Read more

Categories Meters & Detectors Tags Light Alarm Circuits 1 Comment

8 Light sensor alarm or Sensitive Sound Generator

Last Updated on: April 17, 2022 by Apichet Garaipoom
Four Light Sensor Alarm Circuits

These are four light sensor alarm circuits, when be become dark, or Light sensitive switch.Use part is important light sensor LDR light dependent resistor […] Read more

Categories Meters & Detectors Tags LDR sensor, Light Alarm Circuits 5 Comments

Battery full charge alarm circuit

Last Updated on: June 22, 2023 by ElecCircuit.com
Alarm light circuit for battery charger

The Battery full charge alarm circuit for a general battery charger. It is simplified circuit and cheap, use one transistor BC557 and display with 2 LED. Read more

Categories Battery Chargers Tags Lead Acid Battery Chargers, Light Alarm Circuits, Battery indicators 15 Comments

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