Fajar Purnama, Irwansyah, Muhammad Bagus Andra, and Tsuyoshi Usagawa
- This paper was presented in The 14th International Student Conference on Advanced Science and Technology (ICAST) at Kumamoto University, Japan, on 29th November 2019 but was not published thus the copyright remained with me “Fajar Purnama” the main author where I have the authority to repost anywhere and I hereby declare to license it as customized CC-BY-SA where you are also allowed to sell my contents but with a condition that you must mention that the free and open version is available here. In summary, the mention must contain the keyword “free” and “open” and the location such as the link to this content.
- This is the original version of the paper. Due to my laboratory demand to emphasize education and a limitation of 2 A4 pages, some aspect related to the title were replaced with educational topics. If you want to see the modified one, it is available at Reasearch Gate.
- The presentation is available at Slide Share.
Bitcoin reaches $10000 per coins again, other cryptocurrency coins’ value also drastically increases, but it does not mean that mining became profitable on personal level. The cost of electricity and internet remains a liability in households, but what if there is a method to zero that electricity running cost? The authors came up with an innovation of using solar panels to generate the electricity but even more so, a practical method that could easily be followed by average people. That method is the combination of solar panel, USB power bank, and USB powered computer devices which are usually smartphones and single board computers. The solar panel converts sun light into electricity and the power bank serves as the battery to store it which today’s available power bank is able to power USB powered computer devices. This article contains a mixed short discussion of economics, environments, and innovative technologies.