I have recently looking back into live data logging solutions for Internet of Things devices.
Previously I have used Pachube, which turned into COSM, which turned into Xively. This service has been diluted through all these reinventions and, in my honest opinion, has lost what I liked about it.
Enter ThingSpeak. The site looks highly open source, which don’t get me wrong is a great concept but can often result in questionable quality. Despite this it provides the absolute best IoT service I have seen yet.
I have set up a test channel, have a look here, which is just a .net service running random number generation code on all 8 of the data fields. Update frequency is set at a maximum of every 15s from and channel (dictated by the ThingSpeak API).
One feature which I really like is the ability to upload historical data in CSV format. This will make migrating data from other services very easy.
Embedded 2 of the random number graphs as iframes into the post