Wireless 9 DOF Setup Recommendations

Projects General Guidance
1

Hi Everyone,

The project that I'm starting is to build a wifi, LIPO powered, 9 DOF sensor.

I was thinking about using the Uno with Wifi:
Arduino Uno Wifi Rev 2
https://store.arduino.cc/usa/arduino-uno-wifi-rev2

And using this sensor:
Sparkfun 9DOF Sensor Stick (SEN-13944)

I only want the device to sync with my database over wifi once a day. So I assume I will need to also incorporate a storage component as well. I also reviewed this sensor which has storage built in but doesn't have wifi:
Sparkfun 9DoF Razor IMU M0 (SEN-14001)

I am not sure which LIPO I should get yet, my plan is to build the sensor and then check how much power it is using and determine what size LIPO I need for my intended use case.

So that's a high level overview of my project.

Here are my questions:

  1. Does anyone have any recommendations on which hardware I should be using for this? I need something small, and also beginner friendly.

  2. If you have are aware of any really great videos or threads related to building a wireless sensor please feel free to share. I have already found a few threads on this forum and some youtube videos.

  3. I assume I will need storage, any suggestions on how I could incorporate that? As I mention above, the Uno with wifi will probably need storage. Or the Sparkfun DOF with the SAMD21 microprocessor has storage, but would need wifi. Any suggestions on which would be the better approach?

Any advice or suggestions would be greatly appreciated!

Thanks in advance everyone :slight_smile:

Cheers

2

For battery powered operation, the Uno is a very poor choice. You need the equivalent of a "bare bones" Arduino and make extensive use of sleep modes, as described in this excellent tutorial. For a wireless, solar powered Arduino project, see one of Gammon's other excellent tutorials.

I would use a Pro Mini, modified by removing the voltage regulator and power LED, which can run for years from a coin cell.

Consider also the more modern orientation sensors offered by Adafruit and Pololu.

Keep in mind that this project is NOT AT ALL "beginner friendly", in fact it is quite challenging.

3

Can you explain what a "9 DOF sensor" is?