https://www.dronecode.org/
やっぱpixhawk買ってみるか
Month: 10月 2014
【Android】ListView
区切り線設定
<ListView
android:id="@+id/ListView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="#80000000"
android:dividerHeight="1px" >
区切り線なし
<ListView
android:id="@+id/ListView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="@null" >
</ListView>
【Android】ActionBarを非表示にする
<activity
android:name="jp.mknod.app.sn.LoginActivity"
android:theme="@android:style/Theme.Holo.NoActionBar"
android:screenOrientation="portrait"
android:label="@string/app_name" >
【Android】画面の回転を固定する
画面の回転を固定する
<activity android:screenOrientation="landscape"> <activity android:screenOrientation="portrait">
【Android】volley setup
volley is new network lib.
・apache antをinstallする
brew install ant
または、
https://ant.apache.org/bindownload.cgi
volleyをclone
git clone https://android.googlesource.com/platform/frameworks/volley
・cd volleyで下記をantを実行
android update project -p .
ant jar
[jar] Building jar: /Users/mknod/git/volley/bin/volley.jar
・jarをAndroidのlibsへコピー
【Ruby】UTC
UTC現在時刻
Time.now.utc
format = “%Y-%m-%d %H:%M:%S”
from = DateTime.strptime(“2014-10-08 12:51:23”, format)
to = Time.now.utc
Data.where(created_at: from…to)
【Python】preparate to use python module.
distribute for packaging
pip for easy installation/removal of packages
virtualenv for nice isolated environments
sudo apt-get install python-dev
curl -O http://python-distribute.org/distribute_setup.py
python distribute_setup.py
curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
python get-pip.py
sudo pip install virtualenv
【タイムゾーン】sudo pip install pytz
【シリアル】sudo pip install pyserial
【Python】シリアル通信
【OS X】sudo easy_install -U pyserial
【Linux】apt-get instal python-serial
import serial
import pytz
def initSerial():
com = serial.Serial(
port='/dev/ttyAMA0',
baudrate=9600,
parity = serial.PARITY_NONE,
bytesize = serial.EIGHTBITS,
stopbits = serial.STOPBITS_ONE,
timeout = None )
return com
com = initSerial()
f = open('log.txt')
line = f.readline()
while line:
com.write(line)
line = f.readline()