Green Powered Challenge | Hackaday.io

45 projects

Ultra low powered feather form-factor development board based on the SAML21 microcontroller

Ultra Low Power Feather Development Board

Solar powered LoraWAN node for continuous air quality monitoring based on Wio-E5 and SEN54 Sensirion sensor

pollutagNode2 - Air Quality Monitor - LoRaWAN

aleksei-tertychnyi Aleksei Tertychnyi

A simple circuit that can work as a crystal radio (no power needed) or as a regenerative receiver for the FM broadcast band

When a crystal radio meets a regen receiver

andrea-console Andrea Console

Featuring contactless power, and a cooling fan!

Wireless volumetric display

As long as the city stays loud, the music stays on.

AcoustiHarvest

alessandro-sgarzi Alessandro Sgarzi

The ELM11 is a Lua-programmable microcontroller board.

ELM11

BrisbaneSilicon

Cryptocurrency micro-miner that fits in your pocket. Just open to the sun and start mining. Some crypto is better than no crypto!

Pocket Crypto Miner (Solar)

andrew-sheppard Andrew Sheppard

Unlocking the potential of nComputing L300! A teardown and hacking guide to repurpose the SPEAr600 SoC for custom embedded Linux projects.

Giving a Second Life to nComputing L300: TearDown

An intelligent pet feeder that dispenses food on a timer, detects your pet’s presence, and signals the end of the meal – all with an ESP32.

ACEBOTT Smart Home: Automatic Pet Feeder

aula-jazmati Aula Jazmati

a sleek, solar-powered charger that keeps your devices energized wherever you roam

SolMate

arnov-sharma Arnov Sharma

A lightsaber inspired necklace and a more bejeweled alternative

Solar Powered Necklaces

colin-catlin Colin Catlin

A speed breaker used as a plastic bottle crasher that uses weight of the passing car instead of powered motor or compressor to crush bottles

Plastic bottle crashing speed breaker

anteneh-gashaw Anteneh Gashaw

Flexible Solar powered tiny Microcontroller

Redwood

Circuit sculpture: a table-top satellite model that shines and measures light (and is environmentally friendly).

A little CSK satellite for a bright workstation

andrea-console Andrea Console

Great cells, not so great circuitry...

Elecaenta 25W: Solar Panel Upgrade

toster92 t.oster92

Open-source LoRa station for IoT — receives sensor data via LoRa and forwards it to the internet over 4G/LTE.

Loko IoT Data Collection Station — Solar Powered

akio-sato Akio Sato

A super simple solar motor anyone can build in minutes.

A Contemporary Radiometer

andrea-console Andrea Console

My watch runs off "disposable" lithium cells. I retrofit it to run like a grandfather clock: weights and gravity.

Gravity-Powered Digital Clock

powerTimer acts as a high-efficiency gatekeeper for your electronics. By reducing idle consumption to a few nanoamperes, it extends the life

powerTimer: Forget Charging. Sleep in Nanoamperes.

juan-flores Juan Flores

Work = Geometric Asymmetry × Magnetic Flux Density replacing the brute force Energy = Current×Voltage

PMM PMG COMBO

alan-cyr Alan Cyr

An Arduino core for the STC Microcontroller that brings C++ via a RISC-V emulator. USB upload, no programmer needed, under $1.

STC8051 Arduino Core

bi-trnh-th-vin Bùi Trịnh Thế Viên

Harvesting power from a low cost Peltier heater, run in reverse, to power an embedded electronics demo board

Thermoelectric Power Harvesting Demo

low-cost e-ink typewriter

etyper

Transforming rooftop ventilators into green power generators using an axial-flux wind turbine and solar hybrid system.

Rooftop Ventilator Hybrid Energy Harvester

varunsontakke80