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DIY USB 5V Solar Power Bank

Solar energy is renewable, free, widely available and clean form of energy. It is considered as a serious source of energy for many years because of the vast amounts of energy that is made freely available, if harnessed by modern technology. Many people are familiar with so-called photovoltaic cells, or solar panels, found on things like spacecraft, rooftops, and handheld calculators. The cells are made of ...

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Arduboy Solar Charge Controller, Inverter, PowerBank, Lamp

About this Project I have a few solar panels, 12 Volt batteries, transformers and few more stuff laying around for a while crying out aloud to make some good use of them. Thus the birth of this device - complete small PV solution on a single board. Lets review first which does what, shall we? A charge controller is a device which regulates the charging of DC storage/battery from a photovoltaic solar panel a ...

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A very simple DIY solar-powered USB charger

Yesterday, 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. [caption id="attachment_36017" align="aligncenter" width="580"] Simplest DIY solar-powered USB charger[/caption] It was one of the easiest projects I built. All I need ...

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SunDuino – Run your C application using solar power

SunDuino is a Single Board Computer with integrated Battery Charger, Voltage Regulators, I2C, Digital and Analog IO. It’s main benefit is that it can run a compiled C app for years on a small battery or forever using built in solar charger. A background RTOS provides SLEEP functions for reducing operating current to 100ua while providing 125ms periodic wakeups. Sunduino comes in 25W and 10W versions to bett ...

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Open Inverter, an open source micro-solar inverter

Txtzyme - A minimal interpretive language and thoughts on simple extensions Tytzyme was about as easy as a "language" could get, it offered digital input and output, analogue input, rudimentary timing in uS and mS and simple repetitive loops.  It was so simple, and offered so many opportunities for extension, that I decided to write some new functions - and called the extended language SIMPL  - serial inter ...

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Optimized Solar Tracking System

Summary The solar energy collection is not that easy compared to the different types of power generation system because it has the lowest capacity factor. It has 5 out of 24 hours in a day that it can generate electricity from its solar collection. The only solution to this is by optimizing the 5 hours solar energy collection. This design features a solar tracker with Light-Dependent Resistor (LDR). The sys ...

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Sun Tracking Solar Panel

As the non renewable energy resources are decreasing, use of renewable resources for producing electricity is increasing. Solar panels are becoming more popular day by day. We have already read a post about how to install solar panel for home. Solar panel absorbs the energy from the Sun and is stored in the battery. This energy can be utilized when required. Utilization of the energy stored in batteries is ...

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