Edge Collective

13

The Big Bounce

Rachel Donald + Simon Michaux interview

1:16 -- kate soper

1:25 -- complexity

Feather ESP32-S2 wifi

adafruit internet test for feather esp32-s2 tft

circuitpython adafruit_requests POST example

feather esp32s2 tft display

Raising chicks

https://www.gov.mb.ca/agriculture/livestock/production/poultry/brooding-temperatures-for-small-poultry-flocks.html

Max Sonar

max 7388 data sheet via site and via EC

An inverted signal approach to the maxbotix TTL covered by sparkfun here

Looks like we don't need an inverting transitor. But: need to figure out how to grab the data in a sensible way and convert to int.

Note: looks like we can do RX / TX on D10, D13, A0, and A1 on the feather esp32-s2 ... so we can use the 'tracker' boards as remote ultrasonic and satellite nodes!

Scythe

https://scythesupply.com/outfits.html

Sweet-p board

Rockblock 9603 on adafruit

Connector: Molex 51021

More information on connector via adafruit here

Looks like it'll be better to purchase the 9603 first before designing custom connection; luckily, same wires will go to the 9602; can use that header meanwhile

Nice tutorial on the rockblock by makersnake

Dimensions for the adafruit mini gps module here

Pin muxing on esp32-s2

cheap rtc

with circuitpython

Mosfets

Current version of sweet-p - v0.2 - uses SOT-23 GDS pin config. Need: SOT-23 GSD pin config. e.g. 2N7002

Argument around energy

Our Renewable Future essay by Heinberg

The Simplicity Institute

Publications

Agraria Center

Home biogas

Simplicity Collective

Community Economies Institute

Mapping / Canoe

Location for Beaver Pond on this map shows the location: https://lincolnconservation.org/tws_holding/beaver-pond-stony-brook-south/

Alter Nativas

Documentary website

https://www.reddetransicion.org/

Ecolise (find link)

Bottom of this document -- the funders: https://alternativasdocumental.info/en/

Smithereen Farm setup

APRS

Looking at line of sight between pembroke and an aprs station

aprs map for pembroke

Line of sight tool: https://www.scadacore.com/tools/rf-path/rf-line-of-sight/

Smithereen to W1LH-4

Smithereen to DW8542

Testing sweet-p v0.2

SD card works

Looking at https://github.com/adafruit/Adafruit_CircuitPython_GPS to see if any useful code for reading serial

3/4" female threaded adapter https://www.homedepot.com/p/3-4-in-Female-Conduit-Adapter-R5140044/202043515

3/4" drill bits at home depot:

ultrasonic sensor page and datasheet

Maine Alewife Festival

https://storymaps.arcgis.com/stories/5c24385c2e9b4861b286caad15ef6398

https://themudflat.org/sipayik-increasing-mudflat-productivity-in-passamaquoddy-bay/

https://bmcgreavy.org/

http://www.mainelegislature.org/legis/bills/getTestimonyDoc.asp?id=10005634

Satellite relay

The library I used: https://github.com/lyngklip/structjs

The nodejs code, running on 'coop' on digital ocean: https://github.com/edgecollective/iridium-bayou-relay

~/gitwork/sweet-p/firmware/board_ver_0.2/v3.0

Water quality issues near Pembroke

https://www.epa.gov/water-research/water-sensors-toolbox

https://en.wikipedia.org/wiki/Passamaquoddy_Pleasant_Point_Reservation

https://archives.weru.org/radioactive/2020/10/radioactive-10-15-20-drinking-water-crisis-at-sipayik/

Influence of Tap Water Quality and Household Water Use Activities on Indoor Air and Internal Dose Levels of Trihalomethanes

‘Dirty water causes our communities to lose sight that they are worthy of clean water’

Turbidity sensor prototype

Digikey evaluation system for turbidity measurement

Measuring THM in water https://www.multisensorsystems.com/ms-applications/thm-monitoring-in-drinking-water/#:~:text=THM%3A%20An%20introduction&text=Many%20trihalomethanes%20are%20considered%20to,%C2%B5g%2Fl%20of%20total%20THMs.

Different approaches to measuring THM in water

THM analyzer datasheet

How to remove THM from the water using filters

Good background on the issue: https://archive.ph/Olk0P

When chlorine is added to a water supply as a disinfectant, it neutralizes the microorganisms that cause water-borne diseases like typhoid or cholera; because of this, chlorination of water has largely been heralded as the most influential public health innovation of the 20th Century. However, chlorine will also react with organic matter in a water supply, causing a class of hundreds of chemicals called disinfection-by-products (DPB) to form. THMs are a kind of DPB, and are monitored in water supplies world-wide “as indicator chemicals for all potential harmful compounds formed by the addition of chlorine to water,” according to the U.S. Centers for Disease Control and Prevention (CDC). The content of organic matter in water supplies varies, but in general, surface water supplies such as lakes and reservoirs contain substantially more organic matter than groundwater. The water provided to Pleasant Point comes from Boyden Reservoir, a surface source with high organic matter content, which leads to sporadic spikes in the treated water’s THM concentration.

Maine water sources by county https://www.maine.gov/dhhs/mecdc/environmental-health/dwp/imt/documents/PWSbyCounty.pdf

Surface water sources in Maine https://www.maine.gov/dhhs/mecdc/environmental-health/dwp/sitemap/surfaceWater.shtml

History of Dennysville https://maineanencyclopedia.com/dennysville/

https://www.visitlubecmaine.com/region/index.php/city-Pembroke/#:~:text=Pembroke%2C%20once%20known%20as%20Pennamaquan,home%20to%20Reversing%20Falls%20Park.

Charles H. Best (1899–1978) was the son of Pembroke's longtime physician Dr. Herbert Best. Charles, in 1921, was the co-discoverer with Sir Frederick Banting of insulin, the "miracle drug" that has allowed millions of diabetics to live normal lives.

Pembroke Historical Society

Satellite Bayou feed

http://bayou.pvos.org/data/2ifhwi34ue4j

Setting up monitoring for Pembroke

Fish ladder

Farm store: