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#sensor

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Shine on you crazy Diamond Quantum Magnetic Sensor.

We’re probably all familiar with the Hall Effect, at least to the extent that it can be used to make solid-state sensors for magnetic fields. It’s a cool bit of applied physics, but there are other ways to sense magnetic fields, including leveraging the weird world of #quantum #physics with this #diamond, #laser & #microwave open-source #sensor.

github.com/QuantumVillage/Uncu

Hypereutrophication, Hydrogen Sulfide, And Environmental Injustices - Mechanisms And Knowledge Gaps At The Salton Sea
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doi.org/10.1029/2024GH001327
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[I have long been fascinated by this ‘accidental waterbody’, from its creation all the way through the extreme pollution issues as it evaporates – and the lithium under it – a heck of a history, culturally, demographically, hydrologically, contaminants, public health, agriculturally and so much more…]
#GIS #spatial #mapping #Hypereutrophication #HydrogenSulfide, #EnvironmentalInjustice #SaltonSea #California #publichealth #water #hydrology #sea #waterbody #accident #fertiliser #fertilizer #dust #dustborne #lake #degradation #health #community #rural #Latinx #Hispanic #farmworkers #children #TorresMartinezDesert #Cahuilla #Indian #FirstNation #evaporation #H2S #research #waterquality #waterresources #agriculture #environment #airquality #wind #airborne #spatialanalysis #monitoring #spatiotemporal #sensor #emissions #nutrients #Coachella #ImperialValley #sediment

My quick take on the Everything Presence Lite sensor:

shop.everythingsmart.io/produc

I've been using PIR sensors for presence detection for years now. They are inexpensive, easy to install, battery-powered so they can be placed anywhere, and reliable. The down side is that the moment you stop moving, you might as well be invisible.

#HomeAssistant #ESPHome #sensor

1/

shop.everythingsmart.ioEverything Presence Lite
Continued thread

5/more #sensor #rtlsdr #hamradio
and poor man's #SIGINT

Here comes Fordie. Tyre pressure monitoring says at least one of the tyres is okay. And: Fordie is on the move so we possibly won't be seeing him again.
Good luck to your other 3 tyre sensors and watch out on the road!

Btw the cmd to get only °c is

$ rtl_433 -C si

Continued thread

4/more #sensor nearfield #sigint

<diabolic laugh>

ALL YOUR SENSORS ARE BELONG TO US!

</diabolic laugh>

well at least these shitbroadcasting on 433 MHz.

These are all weather stations and affiliated outdoor sensors all blaring out data on 433.920 MHz. No idea who owns these - yet.

Next we got to change this Fahrenheit mess to Celsius. And there are other sensors around, thankfully.

Continued thread

3/more #hamradio #sensor

This is my provisonal shack sporting the slimmest possible set up. A 5 Watt VHF /UHF handheld transceiver connected to OE5XFK in the Mountains of hell, as everybody should know meanwhile.
😎

The fat USB stick is an #rtlsdr, a tiny software defined radio attached to a laptop running #ubuntu #linux 24.04.

And now we go a-hunting, Nearfield #SIGINT starting with a humble bash proggie.

harkank@dellaxo3:~$ rtl_433