[TriEmbed] Did anyone discuss M2M data plans?

[Shane Trent]

Chip,

Thanks for the great information. That does seem like a lot of overhead. It
sounds like collecting the data and sending up a group of data points at
one time might be required to make the most of a modest data plan. Any idea
how much data it would take to send the 51 data points at one time?
Guessing from the numbers it might be only 6-7k.

Shane



On Sun, Nov 23, 2014 at 11:47 PM, Charles McClelland <chip at mcclellands.org>
wrote:

> Shane,
>
> I fired up my IOT device and did a test to see how much data is used on
> the GPRS network when a data packet is sent.
>
> I sent data 51 times and used 215kb of data traffic according to my
> T-Mobile portal.   Here is the payload from one of those transmissions:
> - Traffic count - “10"
> - Location - "lat:35.89, lng:-78.81"
> - Battery - “4083"
> - Retries - “0”
>
> Seems like a lot of overhead -  ~4kb to send about 28 bytes.  Here is
> what I can see in looking at the code:
> - There is a 64 bit API key
> - Then a 16 bit identifier for each data stream
> - There is also limited back and forth exchanging commands and result codes
> - Looking at T-Mobile’s numbers, it may be that they count their data in
> chunks and round up.  Kind of like billing a 30 second call as 1 minute.
>
> I hope this helps with your planning.
>
> Chip
>
>
>
> On Nov 21, 2014, at 8:26 PM, triembed-request at triembed.org wrote:
>
> Re: Did anyone discuss M2M data plans?
>
>
>
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