Biochar Water Filters
DIY techniques for filtering contaminants from drinking water, based on the designs by Aqueous Solutions and the work of Dr. Josh Kearns.
Updated: 2024-11-15Projects | Research | Presentations | Guides | Journal
Edge Collective is a distributed research, teaching, and facilitation cooperative. We're working to help individuals and communities to adapt their vital food, water, energy, and communications infrastructure to challenging environments. All of the research, designs, and code that we produce are freely available online. We support our work through grants, donations, and via 'pay-if-or-as-you-can' arrangements.
If you'd like to learn more -- or would be interested to work on a project together -- please do reach out at collaborate (at) edgecollective (dot) io. Cheers!
DIY techniques for filtering contaminants from drinking water, based on the designs by Aqueous Solutions and the work of Dr. Josh Kearns.
Updated: 2024-11-15Developing DIY greenhouse temperature monitoring and control systems in collaboration with Smithereen Farm.
Updated: 2024-11-15Developing a satellite modem-based water level monitoring system in collaboration with Grass Nomads LLC and supported by the LOR Foundation.
Updated: 2024-11-15Developing an easy-to-assemble cart for transporting standard vegetable containers on small farms, in collaboration with the Young Farmer Network.
Updated: 2024-11-15Developing an easy-to-assemble, low-cost bike trailer design, in collaboration with the Somerville Bike Kitchen.
Updated: 2024-11-15Notes on wireless montioring (focused on LoRa).
Updated: 2024-11-15Low-power devices that can mutually geo-locate off-grid.
Updated: 2024-11-15Designing a DIY UV Spectrophotometer
Updated: 2024-11-15Designs for bike trailers, wheelbarrows, etc.
Updated: 2024-11-15Background, ideas, resources for teaching & engagement
Updated: 2024-11-15Remote temp and depth sensor transmitting over lora and satellite radio
Updated: 2024-11-15Designing a DIY UV Spectrophotometer
Updated: 2024-11-15Designs for small boats, focused on 'one-sheet' designs.
Updated: 2024-11-15Tools and techniques for signal / waveform analysis
Updated: 2024-11-15General notes on radio design, builds
Updated: 2024-11-15Designs for off-grid power generation
Updated: 2024-11-15Paper making
Updated: 2024-11-15Notes on experiments with RNode / Signal / APRS
Updated: 2024-11-15Collecting resources on non-fossil-fuel mechanical devices of yesteryear.
Updated: 2024-11-15Building radio nodes with an eye towards easy assembly and easy sourcing of parts.
Updated: 2024-11-15Building DIY, mobile hoop houses, high tunnels, and cold frames.
Updated: 2024-11-15Designs for off-grid heating systems
Updated: 2024-11-15Notes on Ham Radio
Updated: 2024-11-15Off-grid gps navigation
Updated: 2024-11-15Designs and calculations around collective food self-provisioning
Updated: 2024-11-15Developing freezer sensors for use in food storage
Updated: 2024-11-15Techniques for measuring water flow
Updated: 2024-11-15General notes on electronics and related equipment
Updated: 2024-11-15Designing a DIY farm cart.
Updated: 2024-11-15Notes on the accuracy of various approaches to COVID-19 testing.
Updated: 2024-11-15Notes / papers / references regarding COVID-19 pandemic
Updated: 2024-11-15Designs for off-grid cooking
Updated: 2024-11-15DIY cob oven building
Updated: 2024-11-15Notes on inexpensive CO2 monitoring options
Updated: 2024-11-15Greenhouse monitoring and temp control at Smithereen Farm.
Updated: 2023-04-25Using local radio relay to monitor and control solar pumps
Updated: 2023-04-24Notes on wind-powered, water-based transport.
Updated: 2023-03-31Developing field school curricula.
Updated: 2023-03-06Hobby rocketry radio telemetry -- perhaps useful for assessing radio tower height requirements.
Updated: 2022-12-19Notes on experiments with maps
Updated: 2021-11-07Off-grid (battery-powered) techniques for welding
Updated: 2021-10-11Notes on development of temperature monitors for cold storage on farms.
Updated: 2021-09-30Notes on designs for gravity-powered outdoor fans and lights
Updated: 2021-08-15Ideas and history around convening school outdoors
Updated: 2021-08-12Sanitation options to facilite outdoor gatherings during a pandemic
Updated: 2021-08-11Notes on DIY / tarp shelters for outdoor gatherings
Updated: 2021-07-27Notes on the Corsi / Rosenthal / Comparetto DIY Air Purifier design -- build instructions, performance evaluation, references
Updated: 2021-07-27Notes on the Corsi / Rosenthal / Comparetto DIY Air Purifier design -- build instructions, performance evaluation, references
Updated: 2021-07-27Notes on technology and analysis related to soil irrigation
Updated: 2021-03-28Flood / tide sensor prototyping
Updated: 2021-01-18Load scale measurements using FOS software + hardware
Updated: 2020-12-23Experiments in software defined radio.
Updated: 2020-12-05Reserach into compressed air energy storage
Updated: 2020-11-25Omnivore design for a multi-purpose buck/boost battery system
Updated: 2020-11-19Experiments with Bluetooth microcontrollers
Updated: 2020-11-15Setting up a (low power?) E-Ink display with a micro
Updated: 2020-11-08Instructions for End-to-End Greenhouse monitoring stack
Updated: 2020-11-02P2P Farm server prototyping
Updated: 2020-10-20Notes on setting up microcontrollers as HID devices
Updated: 2020-10-18Notes on setting up podcasting infrastructure
Updated: 2020-10-17Experiments with the Hyper Protocol
Updated: 2020-10-08Greenhouse monitoring electronics at Vale da Lama
Updated: 2020-10-06Notes on development of DIY conductivity sensors
Updated: 2020-10-01Notes on setting up a Heltec device.
Updated: 2020-09-24Test of Radiohead mesh networking functionality.
Updated: 2020-09-14Prototyping the Mothbot -- an Arduino-compatible LoRa node for remote monitoring applications.
Updated: 2020-09-01Using the Meshtastic Python API to perform some basic range tests of the Meshtastic system at Newfound Lake in Bristol, NH.
Updated: 2020-08-30Seeing what low current sleep modes are possible with various hardware designs.
Updated: 2020-08-29Collecting tools for estimating line-of-sight locations based on topography.
Updated: 2020-08-27How to set up a custom database directory location for Secure Scuttlebutt (SSB) (enabling e.g. storage of SSB on a portable drive).
Updated: 2020-08-26Experiments with the Radiohead RHMesh approach.
Updated: 2020-08-22Revising the Quahog ESP32 + LoRa circuit
Updated: 2020-08-21Experimenting with the Meshtastic system for Android + Bluetooth + LoRa mesh networking.
Updated: 2020-08-03Radio + WiFi + Ultrasonic tide monitoring.
Updated: 2020-07-17Setting up an "off-grid" greenhouse monitoring system.
Updated: 2020-04-13Designing a flood alert and mapping system.
Updated: 2020-04-13Prototyping a LoRa- and wifi-based system for Soil moisture and temperature, as well as ambient temperature humidty and soil temperture inside a greenhouse.
Updated: 2020-04-12Developing a Free and Open Source LoRa-based system (software, hardware); prototyping a remote node for capturing relaying data from an SDI-12 - based soil moisture sensor.
Updated: 2020-03-21(With Dave Sprague and friends in Belfast, ME -- water level via Radio + WiFi + pressure sensor.
Updated: 2020-02-17Developing a system for capturing soil moisture measurements from a remote field site, using wifi, LoRa, and cellular communications.
Updated: 2019-07-24UMass Amherst Physics STEM Seminar Nov 2, 2021-- building Corsi-Rosenthal boxes and learning about DIY ventilation assessment and
Updated: 2021-11-01Presentation to Belfast High School 'Projects in Engineering' Class on 2021-11-04
Updated: 2021-10-25Presentation to Belfast High School 'Projects in Engineering' Class
Updated: 2021-10-25Video of talk 'Using Dat & the Hyper Stack in Agroecology', presented at the 2020 Dat Conference.
Updated: 2020-08-15Video of talk 'Design Patterns for Degrowth ICT', presented at Degrowth Vienna 2020, as well as at SCORAI 2020.
Updated: 2020-06-09Video of talk presented at the LibrePlanet2020 conference by Mike Stenta, Jamie Gaehring, and Don Blair
Updated: 2020-04-14DIY ventilation assessment and improvement in order to reduce the risk of airborne disease transmission.
Updated: 2024-11-15Connecting a Circuitpython sensor to FarmOS, using a 'remote node' + 'single-channel gateway' approach. Specific example uses an Adafruit ItsyBitsy M4, Adafruit LoRa Breakout, and Adafruit Airlift Breakout
Updated: 2020-05-15Simple Circuipython LoRa radio send & receive demo.
Updated: 2020-05-11Developing a design for a 'local first' approach to farm networking.
Updated: 2020-05-01