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

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...

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Solar Power Module v2
Photovoltaic

Solar Power Module v2

Chip McClelland @ hackster.io published his solar li-po battery charger based on MCP73871 to manage the solar and DC charging of the LiPo battery, TPS63020 Buck-Boost Converter and Maxim 74043 LiPo Fuel Gauge. He writes: I build connected sensor which are often deployed in local...

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Open Source UV Index Detector
Test/Measurements

Open Source UV Index Detector

Boris Landoni @ open-electronics.org documents his UV index detector. It measures solar radiation and visualizes the corresponding value on the integrated display of a miniaturized Arduino, in order to tell us when to expose ourselves to the sun… Open Source UV Index Detector -...

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MPPT solar charger
Photovoltaic

MPPT solar charger

Lukas Fässler from Soldernerd has been working on revised version of his MPPT Solar charger project: Over the last few weeks I have been quite busy with my MPPT Solar Charger project. I’ve built up a first board and started writing firmware for it. Since the last version was not...

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BQ25504 Solar Cell LiPo Charger
Photovoltaic

BQ25504 Solar Cell LiPo Charger

by Pesky Products @ tindie.com: This is a small (0.5 x 0.5 inch) breakout board for Texas Instrument's BQ25504 Ultra Low Power Boost Converter with Battery Management for Energy Harvesting Applications. BQ25504 Solar Cell LiPo Charger -...

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How to connect a Solar Inverter in 10 minutes
PhotovoltaicYoutube

How to connect a Solar Inverter in 10 minutes

Let's connect a solar power inverter for AC voltage output in just 10 minutes. How to connect a Solar Inverter in 10 minutes -...

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MPPT solar charger
Photovoltaic

MPPT solar charger

Lukas Fässler show us his progress on the MPPT solar charger: One of my main goals with this design is to achieve very low standby current, somewhere in the tens of microamps. The basis for this is a low-power buck on the basis of a Texas TPS62120 where the microcontroller can...

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DIY USB 5V Solar Power Bank
Power

DIY USB 5V Solar Power Bank

Abdulgafur tipped us with his latest project, a 5V solar powered power bank. The circuit consists of two stages, the first stage is the battery charger stage based on MCP73831 and the second stage is the step up converter based on LT1302-5 which converts the battery voltage to...

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