Today, we will show you a stepwise tutorial on how to make automatic light lamps with LDR.
LDR stands for Light Dependent Resistor. It is the resistor that changes its resistance when light falls in it. It also acts as a light sensor and is widely used in light sensing circuits.
To make automatic light lamps with LDR, we need tools and materials, which are listed below.
- Soldering iron
- Small LDR (Light Dependent Resistor)
- BC 547 transistor
- 3v LED
- 1k and 10k resistor
- 3v battery
Steps To Make Automatic Light Lamps With LDR
To make an automatic light lamp with LDR, just follow these steps carefully;
Step 1: Take a transistor and bend its leg (as shown in the picture).
Step 6: Now test with 3v battery, connect both battery wires in the circuit, and turn on the battery switch.
This tutorial will help students understand the working concept of LDR & lamps and how they can be made by using the easily available material at home.
Things To Remember
- Be careful while using soldering iron.
- Be secure when connecting the wire.
- Use the material available at home.
Cisco Ramon is an American software engineer who has experience in several popular and commercially successful programming languages and development tools. He has been writing content since last 5 years. He is a Senior Manager at Rude Labs Pvt. Ltd.