Tiny Emergency Lamp

Introduction: Tiny Emergency Lamp

About: Maker, Electronics enthusiast. Studied B.tech Electronics and Communication Engineering. Studies M.tech Robotics And Intelligent systems.

I got some tiny electronics stuffs today. I made a simple rechargeable lamp with some of them. it was fun and joyful to make that of a kind, a tiny and beautiful lamp <3. I am sharing my little DIY here.

Step 1: Collect the Stuffs

This is a simple DIY and a few small things are needed to make this out.

1. A tiny plastic capsule container bottle.

2. A small piece of copper clad board (single sided).

3. On/off switch.

4 . Micro USB female.

5. White smd LED 5630.

6. Red smd LED.

7. 100 Ohms smd resistor.

8. M7 smd diode.

9. 3.7 V , 150 mA Li-po battery.

Step 2: The Circuit .......!

  • The LED is connected to the battery without any current limiter to get maximum intensity.
  • The diode blocks the back flow of voltage from battery to the charger.
  • The red LED (with a 100 ohm current limiter) is the charging indicator.

Step 3: Make the Board

  • Cut a small piece of copper clad board according to the size of the bottle/container.
  • Draw the layout diagram according to the circuit diagram using a permanent marker pen.
  • Do the etching using ferric chloride solution.
  • Clean the etched pcb and solder the components neatly and carefully.

Step 4: Set Up the Enclosure

For the enclosure of the lamp, two holes are needed. One for the on/off switch and the other for the charger port.

We have to cut the bottle for on/off switch port.

And on the blue color top, we have to cut a small rectangular port for the charger.

Step 5: We Made It.....!

aaand we made the very special tiny portable lamp.

We can use a 5v smart phone charger (any) to recharge this.

Invention Challenge 2017

Participated in the
Invention Challenge 2017

Before and After Contest 2017

Participated in the
Before and After Contest 2017

Be the First to Share

    Recommendations

    • The 1000th Contest

      The 1000th Contest
    • Battery Powered Contest

      Battery Powered Contest
    • Hand Tools Only Challenge

      Hand Tools Only Challenge

    3 Discussions

    0
    Josh_Blackburn
    Josh_Blackburn

    3 years ago

    Charging a 3.7v Li-ion battery with 5v can and likely will cause it to explode. Please don't be so careless, or at least inform others of the danger.

    0
    AUDIOPHELLIAC
    AUDIOPHELLIAC

    3 years ago

    its quite nifty. I made one running on my powerbank.
    I have quite a few powerbanks that i collect for various projects. Recentl, my blackberry finally broke down for good. I took out the flash LED and tested the min and max power it can take.
    Hacked my powerbank, added a resistor and got the LED to work on 3.5v. Its super bright and can still trickle charge my phone when i need to. Its pretty handy when i need light inside a washing machine repair.

    0
    DavidV12
    DavidV12

    3 years ago

    Without a proper overcharge protection circuit, this circuit is a potential fire hazard if nonprotected cells are used.