neilwebber

Category: Tech

  • Arduino JSON Web Server

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    I wrote a small program to implement a web server with a JSON/HTTP interface for accessing I/O pins on the Arduino. Of course to use this you have to have an Ethernet shield (wired or WiFi) on your Arduino; a standard bare Arduino by itself has no network interface. But if you have the shield,…

  • Arduino and Numerous, with help from IFTTT

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    neilwebber
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    Here’s one way to connect an Arduino to a Numerous metric. The best solution would be to port the Numerous API to the Arduino; however, there is a footprint problem especially with SSL: there is only 2K of RAM on a standard Arduino. I could not find any Arduino ports of SSL (which is required…

  • Lego Technic Triangle Geometry

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    neilwebber
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    Time for some fun with Pythagoras! Lego tends towards rectangular constructs, but sometimes we might want to make triangular connections. Technic beams especially lend themselves to this. Right-angled pythagorean triangles are fairly easy to construct. Here’s a 3,4,5 triangle: Notice that when you build it you build it as 4,5,6. That’s because it’s the distance…

  • Showing off with shell “nr” (NumerousApp) command

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    neilwebber
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    I wrote some scripts demonstrating what you can do with all the bits and pieces I have now for manipulating NumerousApp metrics from python and shell. In particular, I was interested in finding the maximum value of one of my metrics:3626358291300704487 (this is the actual NumerousApp metric ID) I have already installed the python numerous client library and…

  • NumerousApp Server API Performance

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    neilwebber
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    I added yet another numerous metric, this time tracking the performance of the NumerousApp server itself:  http://n.numerousapp.com/m/1dlt3ykfq5vqs It’s measured using this python code: import numerous nr = numerous.Numerous() nr.user() nr.user() t = nr.statistics[‘serverResponseTimes’] print (int(t*10000)/10.0)”  which is using my NumerousApp Python library (“pip install numerous”). I just make two user() API calls (discarding the returned…

  • NumerousApp libraries updated

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    neilwebber
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    Newest versions of my NumerousApp API bindings for python and ruby are released. Now includes support for the new fine-grained permissions server APIs. PYTHON details: pypi: https://pypi.python.org/pypi/numerous pip install numerous github repo: https://github.com/outofmbufs/Nappy RUBY details: gem: https://rubygems.org/gems/numerousapp/ gem install numerousapp github repo: https://github.com/outofmbufs/numeruby NumerousApp overview: www.numerousapp.com API: http://docs.numerous.apiary.io/

  • Friday the 13th and NumerousApp

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    neilwebber
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    I made a new NumerousApp metric that will tell you when the next Friday the 13th is: http://n.numerousapp.com/m/1w4c4tk4uh29j Nerd info: I wrote this brute-force python program to find the next Friday the 13th: from datetime import datetime, date dt = datetime.now() while dt.day != 13 or dt.weekday() != 4: dt = date.fromordinal(dt.toordinal()+1) It gets today via…

  • Newest versions of NumerousApp API class libraries

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    As I wrote earlier, I have created Python and Ruby class libraries for the NumerousApp APIs. I’ve recently made a bunch of updates; the newest versions are: Python: Version 1.5.1: https://pypi.python.org/pypi/numerous/ % pip install numerous Documentation: https://github.com/outofmbufs/Nappy/wiki Ruby: Version 1.1.0: https://rubygems.org/gems/numerousapp/ gem install numerousapp Documentation http://www.rubydoc.info/gems/numerousapp/1.1.0 Additional documentation on “OmniRef” :  https://www.omniref.com/ruby/gems/numerousapp/ And, as always, github repos: https://github.com/outofmbufs/ Ignore /…

  • Arduino Data Monitor Program

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    Finally got around to uploading (to github) and documenting my Arduino program for monitoring analog inputs. It’s pretty cool; it: Keeps a ring-buffer of readings and allows you to see what your monitored input has been doing over time. Implements a web server – you can access the readings with your web browser. Has a…

  • Documentation for my NumerousApp python class

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    neilwebber
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    Docs for the NumerousApp python class library is now available here: http://pythonhosted.org/numerous/