Question about GPS Logging Dog Harness

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rlprickle
 
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Question about GPS Logging Dog Harness

Post by rlprickle »

I am interested in building the GPS Logging Dog Harness https://learn.adafruit.com/gps-logging- ... s/overview
However, the Flora is not in stock and I was wondering if there is any other Arduino I could use? For example, would the Arduino uno or mini work.

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adafruit_support_mike
 
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Re: Question about GPS Logging Dog Harness

Post by adafruit_support_mike »

That project doesn't require anything special from the hardware, though the Flora is good for wearable applications.

You could use an Uno, but one of our Feather 32u4 boards would probably be more convenient:

https://www.adafruit.com/products/2795

Those are also designed for battery power, and have a built-in LiPo charger. The built-in SD holder would let you save additional information from the GPS module or other sensors if you wanted to expand on the basic project.

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marcelop
 
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Re: Question about GPS Logging Dog Harness

Post by marcelop »

Hi, I would like to build this project and I was thinking to do it around the "Feather" ..

I am new to this board so I want to be sure to order all the required elements. I want to do it for my cat (likes to wander around during the night!) so small size is what I am looking for.

Am I all right with the following:
1- Feather 32u4 Adalogger
2- Ultimate GPS Feather wing
3- Feather Stacking Heather 12 and 16 (Will this be all right, please advice)
4- Lithium Ion Polymer 350 mah (What is the total time of the set up with this battery?)

Thank you very much.

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adafruit_support_mike
 
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Re: Question about GPS Logging Dog Harness

Post by adafruit_support_mike »

The Adalogger and GPS FeatherWing will work for that project.

You don't need stacking headers, just a way to connect the FeatherWing to the Feather. A set of female headers for one of the boards would be fine:

https://www.adafruit.com/products/2886

If you want the boards to be a little closer together you can also use short pins and female header:

https://www.adafruit.com/products/3002
https://www.adafruit.com/products/2940

A Feather uses about 9mA in normal operation, and a GPS module uses about 30. Writing data to an SD card takes more data, but the total consumption depends on how often you write data and how much. Taking 50mA as the average hourly consumption for the whole system, you'd get 6 to 7 hours from a 350mAh LiPo.

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