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alp tuğan | interaction, sounddesign alp tuğan Search Primary MenuAbout Contact Home Search for: raspberry pi , Solution Center Enable I2C on rPi March 30, 2016 alp tuğan Leave a comment 1- sudo nano /etc/modules 2- To the bottom snd-bcm2835 i2c-bcm2708 i2c-dev 3- If so check blacklist file. It depends on your board type sudo nano /etc/modprobe.d/raspi-blacklist.conf Comment out following lines as follows; #blacklist spi-bcm2708 #blacklist i2c-bcm2708 4- sudo apt-get install python-smbus sudo apt-get install i2c-tools 5- sudo nano /boot/config.txt Add these line at the bottom of the file dtparam=i2c1=on dtparam=i2c_arm=on sudo raspi-config -Advanced options-enable i2c 6- Do not forget to reboot sudo reboot 7- Check whether it works or not sudo i2cdetect -y 0 (for a Revision 1 board like mine) or sudo i2cdetect -y 1 (for a Revision 2 board) 8- then you should see output showing any I2C devices that are attached and their addresses 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: — — — — — — — — — — — — — 10: — — — — — — — — — — — — — — — — 20: — — — — — — — — — — — — — — — — 30: — — — — — — — — — — — — — — — — 40: — — — — — — — — — — — — — — — — 50: — — — — — — — — — — — — — — — — 60: — — — — — — — — 68 — — — — — — — 70: — — — — — — — — i2c raspberry pi raspberry pi , Solution Center , tutorials Install Samba Server on Raspberry Pi to access over network March 9, 2016 alp tuğan Leave a comment 1- sudo apt-get install samba samba-common-bin 2- The directory that we will share out will act as a mount point for external storage. So we will need to create the directory and set appropriate permissions to the directory. Using mkdir(/bin/mkdir) we can both create the directory and set the permissions in the one command. The -m option will allow you to set the mode or permissions of the directory. sudo mkdir -m 1777 /data From the above command we can see the easy part, creating the directory /data. As it is at the root of the file-system we will need administrative permissions to do this so we run it prefaced with the sudo command. The mode of the directory is set with the -m option: 1: sets the sticky bit. This set on a directory ensures that users can only delete files they own. 7: sets RWX read , write and execute for the user owner 7: sets RWX read , write and execute for the group owner 7: sets RWX read , write and execute for others This directory will be empty at the moment and, of course, the root file-system is limited in size on the Pi to that available from the SD cards. We can use an external drive connected to the USB ports and have this mounted to the /data directory. This then can provide effective storage for your network 3- Backup conf file and edit as following; sudo cp /etc/samba/smb.conf /etc/samba/smb.conf.old sudo rm /etc/samba/smb.conf sudo nano /etc/samba/smb.conf Add the following lines; [global] workgroup = HOME netbios name = KINETIC server string = Kinetic Server %v map to guest = Bad User log file = /var/log/samba/log.%m max log size = 50 socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 preferred master = No local master = No dns proxy = No security = User wins support = yes [Data] comment= Pi Home path=/home/pi browseable=Yes writeable=Yes only guest=no create mask=0777 directory mask=0777 public=yes 4- Restart Samba Server sudo service smbd restart sudo service nmbd restart 5- Create users The last part of this tutorial will involve us creating samba users. These users must represent Linux users but their password can and should be different to the Linux password for security. This is not enforced though. Using the command smbpasswd(/usr/bin/smbpasswd) as the root user we can add new samba users. A user must have a password in samba to access shares. sudo smbpasswd -a root sudo smbpasswd -a pi 6- Restart Samba Server sudo service smbd restart sudo service nmbd restart network raspberry pi samba server Solution Center , tutorials Access Raspberry Pi over your network January 25, 2015 alp tuğan Leave a comment 1- Plug Raspberry Pi to HDMI, keyboard, network cable (cat5) SD card with the OS 2- connect PU 5 volt 2.1 amp 3- Select Rasbian OS to install 4- Wait for the installation to finish 5- If everything is ok, you should see a screen as follows 6- Now, you can plug off your HDMI cable. 7- Open Terminal in your Mac OS X. 8- Find the ip of your Raspberry Pi from your router’s GUI (Type : 192.168.x.x – whatever yours…Login and find a menu named LAN . Right there, you should see the local ip address of your Raspberry Pi – e.g. Mine is 192.168.2.34) 9- In terminal window type as follows to connect your Raspberry Pi with SSH over network: ssh pi@192.168.2.34 pi is the default username and raspberry is the default password of your Raspberry Pi. Hit the Return and enter the password. You should see something like this: 10- Now, type sudo raspi-config sudo is for administrator authorization. Move the cursor to the Advanced Options hit Return. Then move cursor to SSH hit Return. Enable it. Screen goes black and the it says SSH enabled”. Hit OK. 11- If you mind to use your Raspberry Pi as a NAS only, you don’t need much GPU power. So, it’s better to make it lower. Goto Advanced Options-Memory Split . Type the lowest value which is 16 and OK. 12- Few commands to use with your Raspberry Pi over network; sudo halt – to shutdown sudo reboot – to restart acces from anywhere nas pi raspberry pi setup ssh static ip arduino , Download , Physical Computing , Solution Center How to connect Arduino + 74HC595 + LCD 16×2 September 28, 2014 alp tuğan 1 Comment I put necessary files at the bottom o f the post. There are different kinds of 16×2 LCDs on the market. So, the placement of the pins can be varied. There are some tutorials on the web which are showing how to connect Arduino+LCD+74HC595, however I couldn’t make any of them work. Because, my LCD’s pins placements are not same as the tutorials that I found. I put a note in the Fritzing file. It shows the order of the pins. So, you can make the correct connections using the diagram. Another issue is the Arduino’s LiquidDisplayLibrary. You need to update it in order to use the LCD library. You need to update or replace it from Aduino library. Here is the steps how to connect Arduino + 74HC595 + LCD 16×2 together with only 3 pins on Arduino board; 1- Make your connections according to Fritzing file as follows. Click to download 2 – Download the LCD library. And place it into Arduino – Download and unzip the new LiquidDisplay folder. – Open Applications folder in Finder – Right click onto Arduino and select Show package Content. Then goto ContentsResourcesJavalibraries – Copy/replace the downloaded folder into that folder. – Close Arduino App. 3- Download the example code . And upload to your Arduino. 16x2 74hc595 arduino crystal display lcd lcd 16x2 liquid Liquid Cristal Display OS X TipsHacks , Solution Center Xcode 4.6 SDK path September 30, 2013 alp tuğan Leave a comment The default OS X SDK path is in Application’s Content package; 1- goto Applications Folder - Xcode 2- Right-click to Xcode, selectShow Package Contents ” 3- Navigate to Developer-Platforms- MacOSX.platform-Developer-SDKs 10.6 4.6 path sdk sdks xcode OS X TipsHacks , Solution Center used as the name of the previous parameter rather than as part of the selector September 30, 2013 alp tuğan Leave a comment You get this warning in X-code. X-code 4.6 needs a more readable format as follows -(void) dateAge: (int) k : (int) i; you should remove the white spaces between paramter type and variable like this: -(void) dateAge:(int)k : (int)i; cocoa objective c warning xcode Solution Center , writings How to install packages/extensions/plugins for Sublime Text 2? August 13, 2013 alp tuğan Leave a comment Formerly, I was using Coda. It was a nice editor for me. But, I left working with Coda after the last updates. I couldn’t be comfortable with the new UI...