Hi all. Kevin here, I run a small logistics startup and I am very much not an engineer. We move refrigerated loads and I want two things: the temperature inside a reefer trailer every few minutes, and a warning when the battery on our trailer gate sensors is getting low, before someone finds a dead one in the yard.
I have a Raspberry Pi 4, a temperature probe and an Arduino Pro Mini on my desk and an investor meeting in a couple of months, so the goal is a proof of concept that doesn’t fall over during the demo. Beginner questions incoming, sorry in advance.
Welcome. For the gate sensors, work out the power budget before you write much code. Battery life is what usually kills these projects, not the software.
Trailers spend time where there is no signal, so plan for that from day one. Keep the readings on the device with their own timestamps and send them when the link is back, or your demo chart will have gaps in exactly the wrong places.
Noted, both of you. Gaps in the chart in front of investors is pretty much my nightmare.
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