22 Mar'15
Programming Arduino Pro Mini with USBasp V2.0
UPD 2016-05-14: Arduino Nano with CH340 ships from Aliexpress for less than $2 – I recommend you buy it instead (unless you know what you’re doing).
Do you really need to pay $25 for an Arduino? Many of my friends have the original Arduino and they work great, but I wanted to see how cheap I can go. Initially, I purchased the SunFounder Starter Kit and it worked 100% as advertised. Today we’ll see if we can get a fully featured Arduino under $5.
Recently, I came across the dirt cheap Arduino Pro Mini clones and decided to buy …
02 Apr'13
Grave accent in C# class names
For generic interfaces, the name parameter is the mangled name, ending with a grave accent (`) and the number of type parameters. This is true for both generic interface definitions and constructed generic interfaces. For example, to find IExample<T> (IExample(Of T) in Visual Basic) or IExample<string> (IExample(Of String) in Visual Basic), search for “IExample`1”.
From Type.GetInterface Method (String) MSDN reference page
05 Mar'13
Algolists
https://sites.google.com/site/indy256/
Introduction to the Design and Analysis of Algorithms (3rd Edition)
08 Feb'12
Nonblocking console input in Python
By Nemesis Fixx:
import sys
import select
import tty
import termios
from threading import Thread
program_run = True
input_thread_timeout = 0.005 #seconds
quit_key = '\x1b' # x1b is ESC
#check stdin for input...
def isData():
return select.select([sys.stdin], [], [], 0) == ([sys.stdin], [], [])
#check n terminate program on terminal condition,
#from a separate thread
class waitOnInput(Thread):
def run(self):
old_settings = termios.tcgetattr(sys.stdin)
try:
tty.setcbreak(sys.stdin.fileno())
global program_run
thread_run = True
while thread_run:
if isData():
c = sys.stdin.read(1)
if c == quit_key:
break
thread_run = False
program_run = False
finally:
termios.tcsetattr(sys.stdin, termios.TCSADRAIN, old_settings)
thread_run = False
t …11 Jan'12
PyOpenCl on x64 system
UPD: I found unofficial binary builds here: http://www.lfd.uci.edu/~gohlke/pythonlibs/#pyopencl, use x86 builds.
Do not forget to install pytools.
I’ve been into some difficulties since i began installing that software, even with help of http://wiki.tiker.net/PyOpenCL/Installation/Windows.
First, easy_install won’t work on x64 systems if installed by executable installer. Instead, use ez_setup.py which will determine the correct version of the software.
Next, install numpy.
finally, i’ve got a problem with module compilation. Let’s split it into two problems:
- wrong path to vcvarsall.bat (try to add …