10 votes

What is the power implication of encrypting my sensor traffic?

There are a variety of encryption methods you could use to secure your traffic, and each one has a slightly different power usage, so I'm going to pick a couple of popular choices. The methodology I ...
Aurora0001's user avatar
  • 18.5k
8 votes
Accepted

What is the power implication of encrypting my sensor traffic?

The bulk of your power will likely be expended on RF transmission, not CPU cycles spent in encryption routines. Every additional bit transmitted will cost you more power than the encryption you're ...
John Deters's user avatar
  • 2,552
5 votes

Tracking exceptions and errors in production IoT devices?

Distributed Tracing The idea behind any worthwhile distributed tracing is most commonly known described in this Google whitepaper about their Dapper solution. Note that I'm not saying they invented ...
Helmar's user avatar
  • 8,430
4 votes

What is the power implication of encrypting my sensor traffic?

Unless you are doing hardware accelerated crypto, the power cost is likely to be high as you land up having a processor that is essentially overpowered for the basic (not crypto) needs. However, in ...
Simon Munro's user avatar
  • 1,493
2 votes

Best memory choice for my sensor

SPI RAM chips such as the 23LC1024 would be ideal for this application, since they have zero hold-time; you just set an address, and stream the data in on an SPI interface at up to 20 Mbit/s or a 4-...
jayben's user avatar
  • 201
2 votes
Accepted

Create and manage thousands of "things"

Why not let it have an initial certificate so that the first message can be "Hello. I'm up and my serial number is abcd." ? In the cloud, you can then look up your sales/fulfillment database ...
kalyanswaroop's user avatar
2 votes

How to select a right database for IoT gateway?

It doesn't sound like you will have much data so I would go with whatever you are most comfortable. If you are proficient with SQL, I would use a SQL database such as MySQL or Postgres. Once you get ...
Nick's user avatar
  • 121
1 vote

How to select a right database for IoT gateway?

If I am understanding correctly you are saying Time-series database like this one right? Then you should go with the Time series database as you said: Data visualization for each sensor in one ...
Lucifer's user avatar
  • 346
1 vote

How do I store data on iot device with only occasional access to the internet?

Since as per your spec this would be a linux based system, you could store the data locally on Sqlite database. Further check out SQLITE-SYNC. With this framework supposedly your application can ...
SudhirR's user avatar
  • 111
1 vote
Accepted

How do I store data on iot device with only occasional access to the internet?

Perhaps you could use the Round Robin Database Tool? It certainly operate along the lines that you want. RRDtool (round-robin database tool) aims to handle time series data such as network ...
Mawg's user avatar
  • 3,110

Only top scored, non community-wiki answers of a minimum length are eligible