How to Make a Automatic Emergency Lamp

Introduction: How to Make a Automatic Emergency Lamp

About: I am an electronics hobbyist and I love to share my works with others

so in this instructable i am going to show how to make a simple eautomatic emergency lamp

*supersimple

*pocket sized

*rechargerable

*automatic

Step 1: Watch Video Tutorial

Step 2: Components

1.LDR

LDR is a variable resistor

The resistance of a ldr decreases with increasing incident light intensity

2.transistors

2n3906,bd139

3.10k resistor

4.3.7 li.ion battery

5.tp4056 li.ion charging module

6.led strip

Step 3: Circuit Diagram

Step 4: Breadboard Connections

Step 5: Connection of Battery and Charging Module

Step 6: Making the Case

i used mdf to build the case

please watch the video click

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    4 Discussions

    1
    RajendraKumarS
    RajendraKumarS

    10 months ago

    Good tried it out but the light keeps glowing all the time!
    Tried reducing the 10K resistance but nothing helps me!

    0
    EDISON SCIENCE CORNER
    EDISON SCIENCE CORNER

    Reply 10 months ago

    check connections ones more
    please do extra care about transistor pins

    0
    RajendraKumarS
    RajendraKumarS

    Reply 10 months ago

    Sure I will do it but took extra care to carefully check the connections and connected it to a power supply!
    I tried to reduce the resistance connected to the base and LDR but still it remains glowing once covering the LDR it glows brighter.