I am in need of a device that can poll and record the temperature of an area automatically such that I can get the information on to my computer somehow.
I am thinking of buying an NTE7225 temperature sensor or something similar, and hooking it up to a cheap microcontroller.
Where I am stuck is how to store the information so that I can retrieve it later.
I would need to store the information for days, preferably indefinitely until removed, but as long as it is powered on would be the next best one. The amount of data would be minimal, one temperature reading and timestamp every n minutes.
The accuracy of the data would preferably be as accurate as the sensor is reporting (but that may be naive).
The only two methods I can think of would be to:
- Buy an SDCard port of some sort and write an SDCard driver to put the information on to the card
- Use a USB port that exposes itself as a mass storage device with a file on it with the information in it. This has the added downside of being volatile.
Are there any other good ways to do this? I can probably do it with a plug computer or raspberry pi, but I’d like to see if I can do it more minimally.