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How to Make a rechargeable lantern as cheap as N 500

You may be wondering, why do I have to design a rechargeable lantern while it is easily affordable on the market?

The answer here is that the one you buy from the market is expensive, but this one am going to show you is cheap and you can design it based on your requirement, but you should make sure that you vary the components in each design as some passive and active components may not be the same in every design but in my own design the LED arrays are in parallel, therefore you can add or remove one without affecting the design.

The one am going to today is very bright with high luminous intensity, with long lasting battery that can last for a week without charging. And the most amazing thing is that it is very cheap including all the materials and tools N1000 may gone and if it is the only materials it is just less than N500. In the case of buying from market, a normal lantern (non-rechargeable) may cost N1000 otherwise the rechargeable may cost up to N3000, depending on your demand.

What you waiting for? Let's quickly move to the making.
The design is divided into three sections, these sections are listed below:
🖊️Materials And tools
🖊️Circuit Simulation
🖊️Modelling and Making

MATERIALS AND TOOLS

In this section you would be able to know all required materials and tools in order to make the rechargeable lantern.
When we said Materials we referred to specific components and items that would be joined together to form the lantern, they are the essential components of the lantern. While Tools are maint for just making the lantern and can be used in making another lantern or any other project.

🖊️Materials:
1. Pattress And it's Cover
2. LED 5 pieces
3. Indicator LED 1 piece
4. Switch One Way (ON - OFF)
5. Charging Pod Set ( I - type)
6. Resistors : 220 ohm and 4.7 ohm
7. Diode : 1N4007 1 piece
8. Circuit Board
9. 3 v AC Battery
10. USB cable
11. Conducting wire 2 yard

🖊️Tools:
1. Soldering Iron
2. Soldering Lead
3. Razor Blade
4. Super Glue
5. Masking Tape

MATERIALS

1. Pattres and it's cover

2. LED 5 pieces

3. Indicator LED 1 piece

4. Switch One Way (ON - OFF)

5. Charging pod set (I - type)

6. Resistors: 220 ohm and 4.7 ohm

7. Diode: 1N4007 1 piece

8. Circuit Board

9. 3 Volt AC Battery

10. USB Cable

11. Conducting wire 2 yard.

TOOLS

1. Soldering Iron

2. Soldering Lead

3. Razor Blade

4. Super Glue

5. Masking Tape

CIRCUIT SIMULATION

this section we would see how the circuit of the lantern would look like. When we say circuit, we refer to an electronics component that consists of different element that are either passive or active and it is maint for a specific purpose.

There are different types of circuit, like our own is a lightening circuit. The circuit comprises of two resistors (220 and 4.7 ohm), five LEDs, one indicator LED, a switch, Diode (1N4007). It is divided into three parts, namely:

1- Vero Board

2- LED Array

3. Switch

NOTE: the whole circuit is simulated in circuit simulator, we use Every Circuit (Android Version) because it has good features. You can download it from Google play store.

🖊️Vero Board:

This is the essential part of the lantern, it is the part that makes the recharging possible, it is mostly found in most electronics that are charged. Vero board in our lantern is nothing but 220 ohm resistor connected in parallel to indicator LED and all in series to a diode (1N4007), see the figure below.

🖊️LED Array:

This is the lightening part, it is the part that consists of the LEDs all connecting in parral to each other and a 4.7 ohm resistor connected in series to the array of the five LEDs. The advantage of the resistor is to control the amonunt of current and voltage across the array which would save the array from over heating.

Note should the taking that, increasing the LEDs would also results to the increase in number of resistance therefore resistor have to be changed in the resistor series. And the pattern of the LEDs is good, it has a very high luminous intensity and thesame voltage is across the whole array, see the figure below.

🖊️Switch:

This is the regulating part, it is where you can On/OFF the whole lantern circuit excluding the charging part. The switch used in this lantern is One Way, that means it can only be used to ON or OFF the lantern. See the figure below.

MODELLING AND MAKING

This is the last part on this DIY and it is the part that we would implement our circuit. In this part we would solder our components to our circuit board and connect all other components together, which we would later convert it together into our pattress to make the lantern live.

Let's proceed to the making now.......

Step 1: Carry your pattress, find a suitable place and make three holes; one for your indicator LED to fit in, and another for your switch (1.8 by 1.2 cm) while the last is for your charging pod (0.9 by 1.1 cm) See the figures below for guides.

Step 2: Carry your pattress cover and indicates 5 parallel couple dots 0.3 cm apart for your lighting LED. Plug your soldering iron and wait for it to hot for 5 mins.

Now use your soldering iron to dig the holes for your lightening LEDs to fit in.

Gently force your LEDs into the holes but be careful to arrange them in array, that is the long leg is positive while the other negative. Therefore, arrange the positive legs in one side and the negative the other by folding the legs inward.

After making the array, use soldering iron to solder all the LEDs legs to one another and as well solder a terminal wire to the array

Step 3: Carry your circuit board and implement your Vero borad and also solder you input and output terminals to it, see the figures below.

Step 4: Carry all your components and solder positive and negative terminal to each in order to make connections easier.

Step 5: Now it is time to implement the whole circuit, use your circuit experience and solder all your components together. Join the three parts together. I.e the Vero board, LED Array and switch.