小编Jos*_*rts的帖子

我试图从node.js服务器脚本与我的arduino交谈.

这是我的代码:

var app = require('express')()
, server = require('http').createServer(app)
, io = require('socket.io').listen(server)
, SerialPort  = require('serialport').SerialPort;

//SERIAL
var portName = '/dev/ttyACM0';
var sp = new SerialPort(); // instantiate the serial port.
sp.open(portName, { // portName is instatiated to be COM3, replace as necessary
   baudRate: 115200, // this is synced to what was set for the Arduino Code
   dataBits: 8, // this is the default for Arduino serial communication
   parity: 'none', // this is the default for Arduino serial …

我正在尝试使用Django开发一个网站,遵循各种指南,文档和谷歌.我有一些平面页面设置需要访问图像/ CSS文件.

我的settings.py文件如下所示:

# Django settings for FirstBlog project.

DEBUG = True
TEMPLATE_DEBUG = DEBUG

ADMINS = (
    # ('Your Name', 'your_email@example.com'),
)

MANAGERS = ADMINS

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'db',                      # Or path to database file if using sqlite3.
        'USER': '',                      # Not used with sqlite3.
        'PASSWORD': '',                  # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': …

我有一个python脚本,我想在启动时在后台运行.这是脚本:

#!/usr/bin/python
from Adafruit_CharLCD import Adafruit_CharLCD
from subprocess import * 
from time import sleep, strftime
from datetime import datetime
from datetime import timedelta
from os import system
from os import getloadavg
from glob import glob

#Variables
lcd = Adafruit_CharLCD() #Stores LCD object
cmdIP = "ip addr show eth0 | grep inet | awk '{print $2}' | cut -d/ -f1" #Current IP
cmdHD = "df -h / | awk '{print $5}'" # Available hd space
cmdSD = "df -h /dev/sda1 | …

我使用haystack搜索我的django网站,它完美地做到了这一点.但是在我的结果页面上,链接不起作用.在我的模板中我使用的代码:

<a href="{{ result.object.get_absolute_url }}">{{ result.object.title }}</a>

在我的其他/ models.py中,我包括:

def get_absolute_url(self):
    return urlresolvers.reverse('post', args=[self.pk])

我的urls.py看起来像:

from django.conf.urls.defaults import *
from dbe.other.models import *

urlpatterns = patterns('dbe.other.views',
(r"^(\d+)/$", "post"),
(r"^add_comment/(\d+)/$", "add_comment"),
(r"^delete_comment/(\d+)/$", "delete_comment"),
(r"^delete_comment/(\d+)/(\d+)/$", "delete_comment"),
(r"^month/(\d+)/(\d+)/$", "month"),
(r"", "main"),
)

它应该链接到的URL是:

http://127.0.0.1:8000/other/10/

但它仍然链接到:

http://127.0.0.1:8000/search/?q=searchterm

在shell中会发生这种情况:

>>> from other.models import Post
>>> inst = Post.objects.get(pk=1)
>>> inst.get_absolute_url()
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "/export/mailgrp4_a/sc10jbr/lib/python/django/utils/functional.py", line 55, in _curried
return _curried_func(*(args+moreargs), **dict(kwargs, **morekwargs))
File "/export/mailgrp4_a/sc10jbr/lib/python/django/db/models/base.py", line 887, …

我正在尝试将JSON解组为一个结构体,但它证明是困难的,因为外部JSON密钥发生了变化,我只在一周前开始.这是我的手动尝试:

import (
    "encoding/json"
    "fmt"
    "strconv"
)

type Device struct {
    localUUID       string
    applicationUUID string
    externalUUID    string
    commit          string
    lastSeen        string
    state           string
    progress        float32
}

func main() {
    devices := make([]*Device, 0, 10)

    b := []byte(`{
        "5417871461137421886": {
            "applicationUUID": "test_applicationUUID",
            "commit": "test_commit",
            "lastSeen": "test_lastSeen",
            "localUUID": "E4:F5:13:8E:F5:43",
            "progress": "3.5",
            "externalUUID": "test_externalUUID",
            "state": "test_state"
        },
        "5632882567440442530": {
            "applicationUUID": "test_applicationUUID",
            "commit": "test_commit",
            "lastSeen": "test_lastSeen",
            "localUUID": "E4:F5:13:8E:F5:42",
            "progress": "3.5",
            "externalUUID": "test_externalUUID",
            "state": "test_state"
        },
        "8912255216147730520": {
            "applicationUUID": "test_applicationUUID",
            "commit": "test_commit",
            "lastSeen": "test_lastSeen",
            "localUUID": …