Temperature and Acceleration logging

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FlyingAlligator
 
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Temperature and Acceleration logging

Post by FlyingAlligator »

Hi,

I want to log temperature and acceleration. The hardware is preferably plug and play (no or little soldering). I also want to add a rechargeable battery and I want to connect the device by USB to a computer.

There are so many options I am getting bit lost in them.

There is this https://learn.adafruit.com/adafruit-data-logger-shield but a combination of Arduino and Arduino MKR shields might work too. Or maybe there are better boards for this?

It is not clear how the data can be fetched from the Adafruit data logger or the MKR shields . Can the device be mounted on the computer as a read/write volume? I mean directly through the device's USB without having to touch the SD-card physically.

I appreciatie any suggestions or ideas you might have.

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dastels
 
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Re: Temperature and Acceleration logging

Post by dastels »

The SD card is not directly accessible via USB.

Battery, no soldering, logging, USB.

I'm think that a feather would work well. USB and battery with charger is a given. If you get one with a STEMMA-QT connector and sensor(s) with it as well then it's just a matter of plugging in cables. QT accel board https://www.adafruit.com/product/2809 and QT temperature board https://www.adafruit.com/product/3251. These are two examples, there are others.

How much space for logging data do you need? The Feather RP2040 has 8M of flash on board. That could be accessed as a USB flashdrive.

You could put the capability in your code to dump the logged data from the SDcard out the USB.

Dave

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FlyingAlligator
 
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Re: Temperature and Acceleration logging

Post by FlyingAlligator »

It should last on battery for up to two weeks (shipping).

After that it should last about 5 years. It's safe to assume that the computer (and wall-power) to which it's connected will be running several times a week, if not continuously. When connected to the computer, data can be pulled and erased from the device. The battery can then be recharged.

Thank you for the links. They look interesting!
Temperature is important. Any shields that can go down to 0.1 deg cel? (I'll look too of course but maybe you have a recommendation.)

Any feather in particular you would recommend? Wireless is not necessary or even allowed in some places.

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