Arduino Solar Tracker (Single or Dual Axis)

https://youtu.be/5KljnLkbgB4 If you’ve installed solar panels on a camper van to provide you with electricity on your camping trip or at home to supplement your electricity usage or take your home completely off grid then you probably know that the panels work the best when they are aligned directly towards the sun. This sounds simple enough, except that the sun moves throughout the day. This is why there a ...

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Maker Buoy solar powered GPS Iridium tracker

Makers, developers and electronic enthusiasts looking for a way to communicate with the Iridium satellite network, may be interested in the new circuit board created by Maker Buoy. Their latest developer on board offers a solar powered GPS tracker providing communications with Iridium, due to its ability to be attached to a Feather form factor board, Adafruit has added it to its Feather list of components. ...

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Bismuth Oxyiodide (BiOI)—A Non-toxic Alternative To Solar Cells

Bismuth is considered as a “green-element” and bismuth-based compounds are gaining attention as potentially non-toxic and defect-tolerant solar absorbers. The researchers of the University of Cambridge and the United States developed theoretical and experimental methods to show that bismuth, which sits next to lead (Pb) on the periodic table, can be used to make inexpensive solar cells. The study suggests t ...

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Solar Power Module v2

Ideation I build connected sensors, which are often deployed in local parks where there is no access to utility power. Over the past couple years, I have been refining and testing my solar power modules, and have arrived at this compact integrated design. I have a number of these deployed and they have been in continuous service for up to two years. I wanted to share this design in case it might be helpful ...

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Researchers Developed Highly Durable Washable And Stretchable Solar Cells

Scientists of Japanese research institute RIKEN and the University of Tokyo have successfully developed a product that allows solar cells to continue to provide solar power after being washed, stretched and compressed. Takao Someya of Riken Center for Emergent Matter Science, a designated national R&D Institute in Japan, led the research team. The research results were published in the journal Nature En ...

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Using a supercapacitor for power management and energy storage with a small solar cell

In Part 1 of this series, we have reviewed solar cell performance, how to select and size the supercapacitor, requirements of supercapacitor charging circuits and charging IC characteristics. We will now use two case studies to illustrate these properties in detail. Case Study 1: Using a small solar cell indoors at low light, 100 lux, to power a Bluetooth low energy sensor using CAP-XX GA109 In this case we ...

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LiFePO4wered/Solar1 – Solar power supply for IoT devices

Description Solar power is not trivial, especially if it needs to be reliable and have a long lifetime for outdoor deployment such as IoT sensor nodes. This project is an effort to create a complete, easy to use solar power system that provides the following features: - LiFePO4 battery for high charge cycle count, high temperature performance and 3.2V output voltage (compatible with most chips used in IoT). ...

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Solar UPS controller/automatic transfer switch

Get your essential appliances off the grid with just one solar panel Things used in this project Hardware components Particle Spark Core × 1 Arduino Nano R3 × 1 Arduino MKR1000 × 1 Story [UPDATE] Now using MKR1000 to control the UNplug unit I replaced the Particle Core with an Arduino MK1000 for several reasons: The pricing policy for a production run with more than 25 units is locking the user into a month ...

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A very simple DIY solar-powered USB charger

I built a very simple DIY solar-powered USB charger for my TP-link 10400mAh USB Power Bank. All I needed was a 6V/3.5W solar panel and the TD1410-based 5V buck converter module. I bought both of them on Aliexpress for less than $8. It was one of the easiest projects I built. All I needed to do was to connect the input of the 5V step-down buck converter to the output of the solar panel using two wires. From ...

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Solar Cell IV Curve Tracer

Do not attempt this project if you are not comfortable working with line voltages! *** This projects shows how to create an IV (Current and Voltage) Tracer that can be used to teach the electrical characteristics of a solar panel. This project was created as part of an Electrical and Computer Engineering capstone project at The Ohio State University. Step 1: What We Used for This Project Tools: Drill Drill ...

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Organic solar cells set new efficiency record

Dresden, Germany - 8 February 2016 - Heliatek R&D teams reached a record conversion efficiency of 13.2% for an OPV multi-junction cell, setting a new world record for the direct conversion of sunlight into electricity using organic photovoltaic cells. The measurement was independently confirmed by Fraunhofer CSP. Thanks to the excellent low light and high temperature behavior of the organic semiconducto ...

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Solar Cells Made Obsolete

PORTLAND, Ore.--Now before you get all excited by the headline, which is not click-bait according to the researchers, a new kind of nanoscale rectenna (half antenna and half rectifier) can convert solar and infrared into electricity, plus be tuned to nearly any other frequency as a detector. The invention was made at Georgia Tech (Atlanta) and peer-reviewed in today's issue of Nature Nanotechnology. Right n ...

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