Edge Collective
16
Sovereignty; freedom.Tue Jul 18 03:36:42 PM EDT 2023
When we think about tech sovereignty and resilience, it is a mistake of modernity to use these concepts unbound from any situated form of life, with the constraints that adhere to that context.
Freedom for a person means nothing if they have no capability to enjoy that freedom. People have needs that must be met before they can exercise their capabilities. This seems to be what has been denoted a 'positive' notion of freedom, as opposed to the 'negative' notion of freedom, which is more one of 'freedom from restraints'.
Similarly, technology sovereignty. Sovereignty means little if there is no capability to enjoy it. Certain needs must be met.
Sovereignty has a sense of 'control over' ...
Getting my thinking straight, here ...
The urges for both sovereignty and freedom seem to hinge on this idea of 'control over one's life's course, over one's domain'. At its most expansive, this would mean that every person has complete control over every aspect of their existence. But for those who inhabit a finite, bounded domain, various humans cannot simultaneously have this grand sort of control and freedom. There are constraints -- material and interpersonal.
Further, it is not enough to guarantee that someone will not be interfered with in pursuit of their goals. If they are not provided space or materials to enable their goals, this lack of interference is relatively meaningless.
Further: it is impossible to avoid constraints due to others; some sort of governance is required. If governance is required, what allows for the most freedom within that governance? That which provides the highest degree of mutual consent. This is likely most possible when governance occurs as locally as possible, with minimal separation among the governing / governed.
Thu Jul 20 03:02:19 PM EDT 2023
controlling greenhouse motors using relays --
motor controller with temp: https://www.amazon.com/dp/B0C1SB7SDT
sparkfun nano power timer https://www.sparkfun.com/products/15353
'on-on-on' switch https://www.digikey.com/en/products/detail/c-k/OS103011MS8QP1/1981414
in kicad library: https://www.digikey.com/en/products/detail/c&k/JS202011CQN/1640097
https://github.com/Tinkerforge/kicad-libraries
Thu Jul 20 03:51:29 PM EDT 2023
Rockblock developer guide: https://cdn.sparkfun.com/datasheets/Wireless/General/RockBLOCKDeveloperGuideMk2.pdf
Full, updated description for rockblock: https://docs.rockblock.rock7.com/docs/connectors
Fri Jul 21 06:35:35 PM EDT 2023
JST PH through-hole vertical connector on digikey https://www.digikey.com/en/products/detail/jst-sales-america-inc./B2B-PH-K-S/926611?utm_adgroup=&utm_source=google&utm_medium=cpc&utm_campaign=PMax%20Product_High%20ROAS%20Categories&utm_term=&utm_content=&gclid=Cj0KCQjw2eilBhCCARIsAG0Pf8sYI3GpjDYx5GSKYBvS8ILmILMp-M7_fNsYftNALWHXcysHoKf46g0aAuBHEALw_wcB
JST PH two-pin jumper https://www.adafruit.com/product/4714?gclid=Cj0KCQjw2eilBhCCARIsAG0Pf8uHGT8C1AcuD-mqX5BG2kiLCamZ3dCag9EEgsJ3IY8C6e8GYZmq7oQaApwaEALw_wcB
ADS1115 https://www.adafruit.com/product/1085
Sun Jul 23 11:50:55 AM EDT 2023
Interesting specs on designing feathers, with diode switch for 'highest' power input -- https://learn.adafruit.com/adafruit-feather/feather-specification
Referencing mothbot schematic for LDO https://github.com/edgecollective/mothbot/blob/main/ver4B/hardware/mothbot_schematic/dippy.pdf
Interesting low dropout through-hole LDO alternative https://www.adafruit.com/product/2166?gclid=Cj0KCQjwn_OlBhDhARIsAG2y6zNNjLUS1ESbpuD86wr7ee2FkFhWDz2j9U5apN3nxZTusayrAaIRRh4aAqNpEALw_wcB
Adafruit Mini GPS module claims it uses 30 mA during navigation ... https://learn.adafruit.com/adafruit-mini-gps-pa1010d-module/pinouts
Looks like it'll be good to use an MCP1703 LDO -- 250 mA output, 2 uA quiescent, can handle 16V if need be ...
Or MCP1702 has similar specs, avail here: https://www.digikey.com/en/products/detail/microchip-technology/MCP1702-3302E%2FTO/1098463?utm_adgroup=&utm_source=google&utm_medium=cpc&utm_campaign=PMax%20Product_Medium%20ROAS%20Categories&utm_term=&utm_content=&gclid=Cj0KCQjwn_OlBhDhARIsAG2y6zMZrCGnu7jZqFkS5DfW0CaMXHI8bEDr7r22CLCmXWiBtYjaS31xGOQaAlxpEALw_wcB
SMA connector part on digikey: https://www.digikey.com/en/products/detail/taoglas-limited/PCB-RPSMAFRA-HT/5034735
datasheet is here: https://cdn.taoglas.com/datasheets/PCB.RPSMAFRA.HT.pdf length is 15.1 mm
Here's a nice enclosure I could use for the current circuitboard: https://www.amazon.com/YETLEBOX-Waterproof-Electrical-130x80x70mm-Dustproof/dp/B09NTWRYHV/ref=asc_df_B09NTXDFQV/?tag=hyprod-20&linkCode=df0&hvadid=598235912058&hvpos=&hvnetw=g&hvrand=8371072517994699494&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001876&hvtargid=pla-1677578727589&th=1
antenna i'd ordered https://www.digikey.com/en/products/detail/datawave-llc/ANT-900-RP-2-A/7725464
Tue Jul 25 04:02:35 PM EDT 2023
Music Maker featherwing tutorial https://learn.adafruit.com/adafruit-music-maker-featherwing/
Total rockblock + sweet-p = 136 mm long, 80 mm high
7.9" x 5.9" case has 165 mm inner length and 114 mm inner height