Lampu led emergency otomatis menyala saat listrik mati

Introduction

In this tutorial, you will learn how to create an automatic emergency LED lamp that activates during power outages. This project is particularly useful for ensuring your home remains illuminated during unexpected blackouts, eliminating the need for candles. The guide will walk you through the materials needed and the step-by-step process to assemble your own emergency lamp.

Step 1: Gather Materials

Before starting the project, collect the following materials:

• Box: 10 x 7.5 x 3.5 cm, plus screws
• LED: HPL 3 watt
• Diode: 1N4007
• Relay: 5V, 5 pins
• Resistor: 2.2 ohm, 1 watt
• Batteries: Two 18650 batteries (more can be used if desired)
• Switch: On/Off switch
• Module: TP4056 charging module
• Wiring: Sufficient length of cable

You can purchase these materials from an electronics store, such as Kharomah Elektronik.

Step 2: Prepare the LED Lamp Housing

• Take the box and make sure it is clean and ready for assembly.
• Drill necessary holes for the LED and switch. Ensure the LED fits snugly and the switch is easily accessible.

Step 3: Assemble the Circuit

• Connect the LED: Attach the LED to the circuit, ensuring the positive and negative connections are correct.
• Add the Diode: Connect the 1N4007 diode in such a way that it allows current to flow only in one direction, protecting the circuit from reverse polarity.
• Attach the Relay: Connect the 5V relay to the circuit. This component will help control the power from the batteries to the LED.
• Install the Resistor: Place the 2.2-ohm resistor in the circuit to limit current flowing through the LED, preventing it from burning out.

Step 4: Connect the Power Source

• Batteries: Connect the two 18650 batteries in series to provide sufficient power.
• Charging Module: Connect the TP4056 module to the battery pack to manage charging. This module will help maintain battery health and ensure safe charging.

Step 5: Final Assembly

• Secure all components inside the box. Make sure everything is tightly connected and insulated to avoid short circuits.
• Close the box and secure it with screws.

Step 6: Test the Emergency Lamp

• Turn on the switch and simulate a power outage by disconnecting the main power.
• Ensure the LED lights up automatically when the main power is off.

Conclusion

You have successfully built an automatic emergency LED lamp. This project not only provides light during power outages but also enhances your skills in basic electronics and circuit assembly. If you encounter any issues, double-check your connections and component placements. Happy building!