Hans on IoT

ThingSpeak, MATLAB, and the Internet of Things

Contest Update 17

Posted by Hans Scharler,

Thanks for all of the submissions to the Internet of Things Contest (aka The Easiest Contest Ever). We received just over 20 projects and we will honor all of them with a gift certificate. I told you it was easy. If you happen to be working on a project now, send it in. You never… read more >>

Hidden API Commands

Posted by Hans Scharler,

When you are retrieving data from a ThingSpeak channel you have many options and formats to choose from. We wanted to highlight a few options that are easily overlooked.
Last.txt
Let’s say you have an Arduino and you want to get the last value in a channel. You could get your feed… read more >>

Dynamic JavaScript Charts (new feature)

Posted by Hans Scharler,

If you look at our homepage, you will see a chart dynamically updating itself with the latest data from a light sensor. We did this by using a combination of our feed API and the Highcharts package. We decided to make this an option in our Charts API. So, all you have… read more >>

Data Log Importer (new feature)

Posted by Hans Scharler,

Do you have a device that stores data on a USB drive? These devices are a common way to track sensors with a higher resolution or when you do not have an Internet connection for that device. The issue is that the data is stuck on the drive. We have… read more >>

Tracking Office Temperature with FEZ Cobra (user project) 4

Posted by Hans Scharler,

[foxxjnm] tracks his office temperature with ThingSpeak. He had a temperature probe and a FEZ Cobra development board lying around, so he decided to connect them to the ThingSpeak API.
I have been playing around with the ThingSpeak API a little this week. I decided to get my FEZ Cobra reporting temperature data from… read more >>

Can Things Tell a Story?

Posted by Hans Scharler,

If you look around your house or office, you will see a bunch of things. Things are just sitting there. Things like your coffee maker, toaster, florescent lights, copy machine, alarm clock…
Have you ever noticed that you keep a schedule on Google Calendar, but every night you set your alarm clock? What… read more >>

ThingSpeak API Source Code on GitHub

Posted by Hans Scharler,

The ThingSpeak API is now on GitHub! You can setup the application on your local network or on a web server in the cloud and run the full ThingSpeak API dedicated for your application. With everyone being able to spin their own web of things, we look forward to seeing…ThingSpeak source code is now on GitHub

Clearing Channels (feature request) 4

Posted by Hans Scharler,

ThingSpeak forum user “nr” requested a feature to clear a channel (without having to delete the channel and then build a new one). We recently added the feature under the Channel settings. Often while testing your code you are sending random data to your channel. This feature allows you to… read more >>

Device Registration and MAC Addresses 2

Posted by Hans Scharler,

We just added a new feature called Devices. This allows you to register your home-brew devices and receive a globally unique MAC address. Some devices do not come with a MAC address so often the MAC address used is the one that the example source code is using. If you end up putting two Ethernet or… read more >>

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