The document describes a foldable solar charger with an Arduino-based solar tracking device. It aims to determine if the device can charge phones and if the tracking feature improves charging rates. Testing found the tracking model charged phones faster, with a mean rate of 18% in 1 hour versus 12.4% without tracking. The tracking model also performed better over 2 hours. The document concludes the device could be useful during power outages and recommends further testing a power storage option.

1. FOLDABLE SOLAR CHARGER
WITH ARDUINO-BASED
SOLAR TRACKING DEVICE

2. FR
Gadgets have become very important part of our
lives. During the past few years, technology has
evolved in many ways and is probably without a
doubt better than ever before. Some of the
inventions that have really changed our lives are
the computers, telephones, internet and
electronic mails, televisions, voice mails, and
mobile phones in this generation. According to
Lee(2011), gadgets are one of the most
important things in the world in this generation..
They are electronically simplified applications
that make work easier and also enhance or
increase the effectiveness and efficiency with
regards to work and made the world a much
better place to live in. However, power
interruptions can be a big problem because
gadgets become useless without electricity.

3. FR
• Nowadays, power interruptions are common here
in the Philippines due to power lines repair
maintenance and also of power shortage. A power
shortage is a short-term or a long-term loss of
electric power in a particular area. According to
the director of Department of Energy Visayas,
Labios (2017), manual load dropping causing
rotational brownouts is being implemented
throughout the Visayas region. According to
Central Negros Electric Cooperative (CENECO,
2017),the areas of Bacolod, Bago, Talisay, Silay,
town of Murcia and Don Salvador Benidicto are
affected due to power shortage and maintenance
activities. This can be a big problem for people
whose jobs require electric and electronic
technology, and also for students whose learning
aids are in their phones, because almost all
technology and gadgets become useless without
the presence of electrical power.

4. FR
• Electricity is one of the most important
blessings that science has given to mankind. It
has also become a part of modern life and one
cannot think of a world without it. Electricity is
very important for our world to function.
Electricity has many uses in our day to day life. It
is used for lighting rooms, working fans and
domestic appliances like using electric stoves,
A/C and more. Without electricity, homes will
never be lighted, and gadgets will never work.
All devices which facilitate our life and impact a
big portion of our life require electricity. Nobody
will like the difficulty we would experience
without technology and help of gadgets. Even if
electricity has great promises, one thing that is
sure is that we need to have a source on where
we could find it. And, with the constant search
and development of this field, scientists
discovered that many natural sources can
generate electricity.
• One of these discoveries is the solar energy.
Solar is among the world's cleanest sources
of energy. Plans to develop utility scale solar
farms have raised concerns about potential
environmental benefits. Scientists also
discovered that this can be a great source of
energy. Solar energy works because of the
presence of sunlight. In order to use solar
energy, scientists created solar cells with the
presence of silicon which generates electrical
current when struck by light.

5. RESEARCH OBJECTIVES

6. FR
The main objective of the study is to design, contruct, and evaluate
the Foldable Solar Mobile Charger With Arduino-Based Solar
Tracking Device. In specific, this study aims:
To determine if the Foldable Solar Mobile Charger With
Arduino-based Solar Tracking Device can charge phones.
To determine if there a significant difference between the
charging rate of the cellphone using the foldable solar
mobile charger with solar tracker and without solar tracker
To determine if there is a significant relationship between
the time exposure of foldable solar charger and the battery
gained.

7. RESULTS AND
DISCUSSION

8. FR
• Table 1. Mean charging rate of solar cells with solar tracker and without solar tracker for
one hour only.
Table 1. shows the mean charging rate of solar cells with solar tracker and without solar
tracker. Result showed that the solar cells with solar tracker garnered the highest data for
charging time of the solar cells with a mean of 18, and the solar cells without solar tracker
garnered the lowest data for charging time of the solar cells with a mean of 12.4 .
c
Experiment Charging rate of the device
1 2 3 4 5 mean standard deviation
with solar tracker 20 18 17 18 17 18 2.25
without solar tracker 10 16 15 9 12 12.4 86.49

9. FRTable 2. Mean charging rate of solar cells with solar tracker and without solar tracker for
two hours only.
Table 2 shows the mean charging rate of solar cells with solar tracker and without solar
tracker. Result showed that the solar cells with solar tracker garnered the highest data for
charging time of the solar cells with a mean of 41.2, and the solar cells without solar tracker
garnered the lowest data for charging time of the solar cells with a mean of 35.6 .
c
Experiment Charging rate of the device
1 2 3 4 5 mean
standard
deviation
with solar tracker 43 41 39 42 41 41.2 4.84
without solar
tracker
37 36 34 37 34 35.6 5.29

10. CONCLUSION

11. FR
The foldable solar mobile charger with Arduino-
based solar tracking device could be a good source of
electricity for charging mobiles during brownouts. It
is also recommended to conduct further study and
experiments in testing the foldable solar mobile
charger with Arduino-based tracking device if it is
more efficient if it will have a power bank or a power
storage that can store electricity converted from
sunlight, that can indirectly be used without a
source of light.
c