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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@MetallixBrother
Currently, there's no WiFi implementation in the warehouse. I'd definitely considered that as an option, but the main issue is that the power consumption seems to be quite large, from what I've seen. On top of this, WiFi is mostly being implemented in the warehouse for a picking system, so I imagine that that frequency will probably become quite crowded rather quickly.
Obviously, whilst I would want to run some sort of mesh network (either RF or WiFi) this isn't practical with either system when power consumption is a major concern, as I can't afford to leave the transceivers running indefinitely without the batteries going flat in a number of hours. I suppose that I could possibly have the thermometers located remotely with some permanently powered relays, but that will drive the cost up quickly, as well as making the system a lot more complicated to maintain (I should note that I am only on a limited contract with the company, but they have several web and C# developers on site who make up the majority of the IT team - hence the main attraction to a JavaScript interpreter).
LawrenceG, the warehouse isn't chilled, but it is filled with metal racking.
allObjects, you've a fair point - I'd not considered that. Depending on the cost of SD cards, I might float that idea as a failsafe, but my concern is that it will drive the price above the aforementioned data logger.