Iteration 1

What is the absolute minimum cloud and hardware needed to get clean data from industrial installations?

We got all the way down to ARM M3 but needed to wipe the flash (solder jumper on the reverse side), do new code in C and assembler - it fits!

Contacted ARM for getting TLS 1.3 into the M3 Cortex portfolio.

No room left for edge analytics — but 3 dumb sensors work fine. Legacy WiFi chips have no SNI, likewise connecting to hot spots in the field with timeouts is useless. Dedicated Wi-Fi or LTE is best. Tested to 1Mio devices; total cloud cost about 5 cents/month per device.

Result: data scientists confirm formats. Cloud OPEX is verified at scale before investment.