初心者

2014年6月19日星期四

NFC PN532 Reader For Raspberry Pi

Source:
1.Android* 上的 NFC 應用程式開發 (多件個案研究)
2.How to Configure libnfc on Linux for PN532 Breakout Board (UART, FTDI)
3.libnfc-1.7.1

Version:
1.nfc:libnfc-1.7.1
2.raspberry pi os:2014-01-07-wheezy-raspbian

目前NFC有三種模式:
1.NFC 卡片模擬模式 (card emulation mode)
2.點對點模式 (peer-to-peer mode)
3.讀寫模式 (reader/writer mode)

測試的是3.NFC讀寫模式.

對於1.NFC卡片模式,

NFC Reader讀取手機不知道各位大大有沒有人試過可以教學分享一下,感謝<(_ _)>

For NFC card emulation mode,i have no idea how to use NFC Reader to communication with smartphone of nfc.If you know please teach me,thank you^^

Step1:套件安裝

Step2:將libnfc-1.7.1.tar.bz2解壓縮

Step3:sudo ./configure --sysconfdir=/etc --prefix=/usr --with-drivers=pn532_uart

Step4:sudo make

Step5:sudo make install

Step6:sudo ./nfc-poll cause error,unable to open nfc device

Step7:sudo mkdir /etc/nfc && sudo mkdir /etc/nfc/devices.d/

Step8:sudo gedit /etc/nfc/devices.d/pn532_via_uart2usb.conf,

輸入下列文字,存檔離開.

## Typical configuration file for PN532 board (ie. microbuilder.eu / Adafruit) device
name = "Adafruit PN532 board via UART"
connstring = pn532_uart:/dev/ttyUSB0
allow_intrusive_scan = true
log_level = 3

Step9:cd /etc/nfc,之後sudo gedit libnfc.conf,再輸入下列文字,並存檔離開

# Allow device auto-detection (default: true)
# Note: if this auto-detection is disabled, user has to set manually a device
# configuration using file or environment variable
allow_autoscan = true

# Allow intrusive auto-detection (default: false)
# Warning: intrusive auto-detection can seriously disturb other devices
# This option is not recommended, user should prefer to add manually his device.
#allow_intrusive_scan = false

# Set log level (default: error)
# Valid log levels are (in order of verbosity): 0 (none), 1 (error), 2 (info), 3 (debug)
# Note: if you compiled with --enable-debug option, the default log level is "debug"
#log_level = 1

# Manually set default device (no default)
# To set a default device, you must set both name and connstring for your device
# Note: if autoscan is enabled, default device will be the first device available in device list.
#device.name = "microBuilder.eu"
#device.connstring = "pn532_uart:/dev/ttyUSB0"

Step10:cd ~/libnfc-1.7.1重新執行sudo ./configure --sysconfdir=/etc --prefix=/usr --with-drivers=pn532_uart

Step11:之後就sudo make clean all,再來就sudo make install

Step12:cd utils/,sudo ./nfc-list抓到pn532 open

Step13:cd ../examples,sudo ./nfc-poll,拿nfc tag來碰觸就抓取到UID

下台鞠躬

2013年1月26日星期六

Eclipse提示功能

不知為何突然Eclipse的點號(.)後會出現的提示功能消失了-.-
後來才知道不知怎麼的被取消了Orz
可以先到Windows->Prferences->Editor->Content Assist 確認Auto Activation的勾選

再來就Windows->Prferences->Editor->Content Assist->Advanced 確認Java Non-Type Proposals

物件的宣告等等或相同一樣字的mark沒出現灰色的

Windows->Prferences->Editor->Mark Occurences 確認Mark occurences of the selected element in the current file.

以上

2012年5月28日星期一

Linux-使用Eclipse 開發Android程式

想說看一些網誌介紹如何安裝Android開發環境
不如將自己使用的過程做成影片
容易讓想學的人更快了解步驟
以下為小弟製做剪輯的
過程中發現到影片的剪輯真的不容易XD

影片中的下載來源:
1.Ubuntu
2.Java JDK for Linux
3.Eclipse for Linux
4.Android SDK for Linux
5.Android ADT
6.adb指令