Kit Is It

Is there an open source software for data acquisition?

I’ve done it with Python before. Have a look at pyVISA[1]. It can connect through a GPIB, USB, or RS232 interface. You’ll have to write your own SCPI command strings to control your instruments.

Let me rummage through my files and I’ll put up a code snippet if I can still find them.

UPDATE: Here’s a Gist that you can use https://gist.github.com/2301119

The basic idea is to connect to a GPIB interface, which is represented by an object in the Python environment. You can then write() SCPI commands and read() responses from your instrument using that object.

[1] Python GPIB etc. support with PyVISA
http://pyvisa.sourceforge.net/
[2] Controlling a GPIB instrument with Python and pyVISA
https://gist.github.com/2301119

Is there an open source software for data acquisition, e.g: on lines of Labview?

1 year ago

MySQL notes

sudo mysqld_safe
sudo mysqladmin shutdown

sudo mysql
GRANT ALL ON menagerie.* TO 'user'@'localhost';
\q

mysql
SELECT USER();
CREATE DATABASE menagerie;
USE menagerie;
SELECT DATABASE();
CREATE TABLE pet (name VARCHAR(20), owner VARCHAR(20),
-> species VARCHAR(20), sex CHAR(1), birth DATE, death DATE);
SHOW TABLES;
DESCRIBE pet;

Secure the MySQL accounts. See 5.3.1. General Security Guidelines
See Chapter 10: Data Types
Delimiter can be specified in the LOAD DATA statement
When writing tab-delimited files with Vim, set noexpandtab
Pick up from 3.3.4.6. Working with NULL values
Databases are stored in /usr/local/mysql/data
User configuration file is ~/.my.cnf

After installing from the Mac OS X PKG Installer, you can use a different data directory for your databases:

Vim pythoncomplete for Google App Engine

Follow this: appengine & virtualenv

And then in your .vimrc, be sure to have the following lines:

py << EOF
import dev_appserver
dev_appserver.fix_sys_path()
EOF

Vim pythoncomplete relies on successful compilation of modules. If one of your modules has a reference to a Google App Engine package, it fails to compile in the Vim environment because the GAE path hasn’t been added. By using the code snippet above in .vimrc or any file that gets sourced prior to running Vim, you are effectively adding the GAE paths to the Vim environment.

1 year ago

Enabling Werkzeug debugger console

1 year ago

#python

The Information Diet

This is the kind of diet I need right now.

1 year ago -

1

#book

The Nerdy Science of the Geekology of Dorkiness

1 year ago -

6

#geek

Geeking out on type

(Source: qr.ae)

1 year ago -

3

#design

(Almost) Running JavaScript with Python

1 year ago -

10

#python

If you believe too much you’ll never notice the flaws; if you doubt too much you’ll never get started. It requires a lovely balance.

Richard Hamming
You and Your Research

(Source: paulgraham.com)

1 year ago -

1

#science

On Inventing Your Life

What are you going to do with that?

An essay adapted from a talk delivered to a freshman class at Stanford University in May 2010.

Moral imagination is hard, and it’s hard in a completely different way than the hard things you’re used to doing. And not only that, it’s not enough. If you’re going to invent your own life, if you’re going to be truly autonomous, you also need courage: moral courage. The courage to act on your values in the face of what everyone’s going to say and do to try to make you change your mind.

— William Deresiewicz

Be sure to read the smart comments that balance out the article really well.

1 year ago -

2

1 year ago -

4

#life
#hack

Photovoltaics fundamentals

1 year ago -

33

Wireless Wings

₱111M Angel Fund launches in the Philippines today

1 year ago

#entrepreneurship

Python objects in the datastore

1 year ago -

5

#python

MIT launches online learning initiative - MIT News Office

MIT expects that this learning platform will enhance the educational experience of its on-campus students, offering them online tools that supplement and enrich their classroom and laboratory experiences. MIT also expects that MITx will eventually host a virtual community of millions of learners around the world.

1 year ago -

1