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> refrigeration. Samples being shipped to the lab and reagents shipped out to clinics were both temperature sensitive. Providers had to verify that these materials had stayed adequately cold throughout shipping and handling, [...] Moreover, Stevens imagined that these sensors would be in continuous communication. There's a lot of overlap between this application and personal area networks (PANs), protocols like Bluetooth
I like the low-fi solution personally:
https://www.ipack.com/warmmark-temperature-indicator-short-r...
https://www.ipack.com/coldmark-temperature-indicator-10c-50f...
> I have at least a few readers for which the sound of a man's voice saying "government cell phone detected" will elicit a palpable reaction.
Can this be recreated as an audio clip for jumpscaring former govt employees?
I love this blog author's writing style. It's very engaging, and draws me into subjects I would otherwise have minimal interest in.
Definitely gonna check out some more of their posts later.
Why can't the manufacturers market "smart guns" outside the US? Surely, the NRA's grip isn't world-spanning.
> the firearms lobby is very influential on police departments, as are police unions which generally oppose technical accountability measures
A lot of what’s wrong in surprisingly few words
Are there any places where a hobbyist could purchase a tag or reader?
Can someone explain how communication can take place using only magnetic fields? I thought that communication requires electro magnetic waves which require an oscillating electro magnetic field.
.kk
> Long ago I wrote about ANT+, for example, a failed personal area network standard designed mostly around fitness applications.
I didn’t know ANT+ was “failed”, I use it all the time with my Garmin products. It’s cheap and it works better than Bluetooth.
I have ANT+ cadence and heart rate sensors. Lights, camera, Varia radar and power meter.
Some of that can be done with Bluetooth but realistically not all at the same time.
Anyone that’s run a smart trainer in a group with others will know that ANT+ is generally more reliable than Bluetooth too.
Apple refuse to support ANT+ so I need a dongle for my Mac and it’s the reason I don’t have an Apple Watch. No biggie.