PaperiNode, an Arduino-compatible flexible low power energy-harvesting LoRa-enabled electronic paper display
ArduinoPhotovoltaic

PaperiNode, an Arduino-compatible flexible low power energy-harvesting LoRa-enabled electronic paper display

Robert Poser has posted his project on GitHub called PaperiNode, which is a flexible, low power, energy-harvesting, LoRa-enabled, electronic paper display. PaperiNode is ideal for the Paperino (an easy to use micro EPD breakout-board for the Photon or other Arduino-compatible...

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Calculate Size of Solar Panel, Battery Bank and Inverter (MS Excel Spreadsheet)
Photovoltaic

Calculate Size of Solar Panel, Battery Bank and Inverter (MS Excel Spreadsheet)

Design of solar panel/battery bank and inverter using this Excel Sheet. This MS Excel spreadsheet calculates the following: Total Demand Load Size of Solar Panel Select Type of Connection of Solar Panel Select Rating of Each Solar Panel Energy from Solar Panel as...

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Solar Integrated ULP Feather Needs No batteries
Photovoltaic

Solar Integrated ULP Feather Needs No batteries

Long battery-life and Low power consumption are usually top on the list of requirements for most hardware devices these days, as the weariness of having to constantly charge a device continues to have significant effect on customers' choice. Asides from consumer applications, another...

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Scientists Develop Safer Lead-Based Perovskite Solar Cell Structure
Photovoltaic

Scientists Develop Safer Lead-Based Perovskite Solar Cell Structure

Researchers at Northern Illinois University and the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) in Golden, Colorado, reported in the journal Nature on a potential breakthrough in the development of hybrid perovskite solar cells. Considered rising stars...

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YX8018 Joule Thief Solar LED Driver
Photovoltaic

YX8018 Joule Thief Solar LED Driver

YX8018 is a 4-pin integrated circuit for driving solar powered garden LED lights and is found on many cheap garden lights. You can buy 10x YX8018 ICs on AliExpress for around $1. You will need the following parts to build one on your own: Parts i-Cd AA 300mAh 1.2v rechargable...

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MPPT charge controller reference design for 12- and 24-V solar panels
PhotovoltaicTop Stories

MPPT charge controller reference design for 12- and 24-V solar panels

This reference design is a Maximum Power Point Tracking (MPPT) solar charge controller for 12-V and 24-V solar panels. This compact reference design targets small and medium power solar charger solutions and is capable of operating with 15- to 60-V solar panel modules, 12- or 24-V...

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Indoor Solar Cells optimised to convert ambient indoor light to electricity
Photovoltaic

Indoor Solar Cells optimised to convert ambient indoor light to electricity

Swedish and Chinese scientists have developed organic solar cells optimised to convert ambient indoor light to electricity. The power they produce is low, but is probably enough to feed the millions of products that the internet of things will bring online. For more information see the...

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makerPower Solar – An intelligent solar power system for the internet of things.
Photovoltaic

makerPower Solar – An intelligent solar power system for the internet of things.

makerPower Solar is a combination intelligent solar battery charger and power supply for low- to medium-power devices freeing them from the outlet. It is designed to provide 24/7 power for a wide range of embedded systems and IoT gadgets. According to Julio: Optimal charging is...

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