6$ cross country IOT device for parcel tracking [pdf]
thebitpost.com
thebitpost.com
Such trackers exist, but they start around $50 and need a minimal cellular account. There are various short-range devices like Tile, as well.
Maybe using NB-IoT and a GPS, it could be plausible? Not at $6 now, but maybe $20, and assuming NB-IoT networks exist where your package is going.
No details, so it might be complete hand-wavy vaporware.
Also, rant, I am frustrated with the use of 'blockchain' for things that should be in a database. Makes me think the company is only hype and buzzword-driven.
So, for my rant, I'd like to state it's frustrating to see people jump to yelling "hype" and "buzzword", instead of pausing for a moment and considering the use cases.
Though I can pretty much guarantee these devices are not directly posting transactions on a blockchain, the cost in CPU power and battery consumption is too high and the devices would cost way more than $6 in that case.
If there is still a server in between making the transactions, does it still make sense to invoke the "blockchain" terminology? To me that is where the hype part comes from.
That said the claim that one could develop a sub-$10 tracker consisting of a GPS receiver, LPWAN tranceiver, and a small ARM for generating signed messages isn't completely absurd -- such a device would have a BOM in the ballpark of $35-40 if cobbled together from retail priced dev modules. It's friggin absurd how cheap hardware has become. Look at the OrangePi Zero as an example. As low as $7 to the end user for a quad core board with WiFi, Ethernet, 512mb ram, and some SPI flash.
I agree with you on the intermediate server issue -- not because a tiny ARM can't directly submit messages, but because most reasonably priced existing LPWAN solutions don't provide internet IP connectivity to devices. If the devices were provided with full IP, there's no reason a blockchain client couldn't run on a cortex m0 -- keep in mind being able to submit messages to a blockchain doesn't mean you have to ever even look at, let alone store or process the chain.
I think it's wise to be sceptical about this project. I'm just less convinced that it's wise to equate blockchains with hype.