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the simplest Wi-Fi temperature measurement
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July 24, 2018
4:47 am
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doh77
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July 24, 2018
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I'm looking for the simplest and cheapest way to remotely monitor my flat temperature via Wi-Fi.

Requirements:
- power supply via micro USB
- accuracy +/-0.5°C
- temperature reading freq: at least 1 every 10 minutes
- possibly also humidity data
- power consumption: the lower the better! 🙂

Googling a bit I found this solution:
- module NodeMCU esp8266 Amica V2
- sensor DHT22

Do you think it is a good solution?
Do you know if there is some simpler module than NodeMCU (that has a lot of I/O and functionalities I would not use)?
Do you know if any plug and play cheap solution (<10$/€) already exist on the market?

Thanks for all the suggestions

July 26, 2018
4:55 pm
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cstapels
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I think this is a fine solution for flexibility, and probably cost, though perhaps not for durability compared to a commercial solution.
ThingSpeak will help nicely with the remote and the analysis parts of your project.
I would suggest esp8266-01, can be a few $ cheaper, especially if you order them in medium quantities.
It does not have analog io, but you can use the one wire interface.

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