Programming

Covering my programming journeys with PHP, Python, Java, etc

Popular posts from this blog

Arduino RFID, RC522, VUSB HID as Keyboard

Image
Wrapped my project into nice grey project box. Nice project i have to combine Arduino, RFID (RC522), VUsb together as HID Keyboard. Just tap an RFID card and my little chips send it to computer as keyboard input. Warning this project not working on Windows XP. And runs perfect on Linux OS, WinVista, Win7 and Win8.1 **Updates https://github.com/adesst/arduino-vusb You will need to create a dir named *UsbDevice* in the arduino libraries, this example taken from my Linux Debian8 64, yours may vary. adesanto@debian8:/opt/AVR/arduino-1.6.9/libraries$ ls -ltha total 6.1M drwxr-xr-x 26 adesanto adesanto 4.0K Feb 12 00:49 . drwxr-xr-x 12 adesanto adesanto 4.0K Feb 12 00:49 .. drwxr-xr-x  3 adesanto adesanto 4.0K Feb 12 00:12 UsbDevice And clone the code into the newly created dir. Then the 2 codes below are good to be compiled. For the source codes, you can find them here: https://github.com/adesst/arduino-vusb-hid-rfid-keyboard Flash this code to 1st chip, that wi
Read more

Compile PHP with unixODBC options

I have XAMPP 1.7 running, with php 5.2.8. Old yes but almost all of my running projects are built on top of it. Recently i got a project that requires to use MSSQL-SQLEXPRESS. I chose to use Codeigniter 2.1.2 as the framework to develop. One of teammate is using MS-Windows environment and he used sqldrv as the database driver with ease. While my part using GNU/linux Fedora19 64bit having problem. After while searching how to connect to SQLExpress than the easy answer itu to use FreeTDS and unixODBC. Modify php.ini of XAMPP 1.7 with no problem. After restart apache and run one of my test_odbc file shows an error "undefined reference odbc_connect()" More googling and ends up that i convincing my-self to compile the odbc library from scratch. So i yum install  unixODBC-devel.i686 and so freetds-devel.i686 then download php 5.2.8 source file from  Here . Done the extraction, now to build the extention. $ pwd /opt/php5-src/php-5.2.8-src/ext/odbc $ /opt/lampp/bin/ph
Read more

Error: cannot find symbol import android.support.v4.app.ActivityCompat

Having same problem like i had? node_modules/react-native-audio/android/src/main/java/com/rnim/rn/audio/AudioRecorderManager.java:30: error: cannot find symbol import android.support.v4.app.ActivityCompat;                              ^   symbol:   class ActivityCompat   location: package android.support.v4.app Or something looks similar that saying xxx.v4.app.ActivityCompat? Well here is the SO , the solution is to jetify. Use this : step 1: add these two lines in gradlew.properties  Visit for complete guideline android.useAndroidX=true android.enableJetifier=true step 2: use these commands First of all remove node_modules folder and reinstall it using npm install or yarn and then npm install -- save - dev jetifier npx jetify npx react - native run - android Call npx jetify Happy coding ^^
Read more