Editing Pi Setup Nov 2016

Yet another setup for the Pi


= Base OS =


https://www.raspberrypi.org/downloads/

*Raspbian
*RASPBIAN JESSIE WITH PIXEL
*Win32DiskImager utility
*put on 16 gig micro card 
*boot

*Before installing new application or service in Raspbian, make sure to
*always type this into terminal: ( if this file is on your PI use cut and paste )
This takes awhile ( perhaps an hour? )
<pre>
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
</pre>

You many find the following of use as well [[Linux Commands On Pi]]

== Change Password ==

*as shipped id is pi password is raspberry.  default user is pi , and the password is raspberry
*Change your password. When logged in as the pi user, you can change your password with the passwd command. Enter passwd on the command line and press Enter . You'll be prompted to enter your current password to authenticate, and then asked for a new password.

<pre>
passwd
</pre>


== Preferences ==


Use the menu to change to a us keyboard or whatever preference you may have.. timezone?
*WiFi Country code
*Timezone
*Keyboard  had trouble getting to stick see [[Linux Commands On Pi]] which may have info on config file edit.

=Set Up Remote Desktop =
== Base Install ==

# use this command to setup the pi => '''should work but did not see below''' 
<pre>
sudo apt-get install xrdp
</pre>

but there seem to be problems on the pi 3 see  
*[https://raspberrypi.stackexchange.com/questions/56413/error-problem-connecting-to-raspberry-pi-3-with-xrdp connect problems]
Summary ( and this worked for me )

remove the following packages : xrdp, vnc4server, tightvncserver ( may not be present, but no worry, just do it )

<pre>
sudo apt-get remove xrdp vnc4server tightvncserver
</pre>
install tightvncserver followed by xrdp
<pre>
sudo apt-get install tightvncserver
sudo apt-get install xrdp
</pre>

== Need the IP Address ==

on the pi issue the command
<pre>
ifconfig
</pre>

and read the tcpip address of the pi( inet addr ) which you can then use, or better use a fixed address

== fixed ip address ==

*[https://www.modmypi.com/blog/how-to-give-your-raspberry-pi-a-static-ip-address-update]
<pre>
sudo leafpad /etc/dhcpcd.conf
</pre>

Scroll all the way to the bottom of the file and add one, or both of the following snippets. 
Depending on whether you want to set a static IP address for a 
wired connection or a wireless connection eth0 = wired, wlan0 = wireless.
You’ll need to edit the numbers in the snippet so they match your network configuration.

*interface = This defines which network interface you are setting the configuration for.
*static ip_address = This is the IP address that you want to set your device to. (Make sure you leave the /24 at the end)
*static routers = This is the IP address of your gateway (probably the IP address or your router)
*static domain_name_servers = This is the IP address of your DNS (probably the IP address of your router). You can add multiple IP addresses here separated with a single space.

* my next Rasberry Pi 178/179

<pre>

interface eth0

static ip_address=192.168.0.176/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1

interface wlan0

static ip_address=192.168.0.200/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1

</pre>

=== Wireless Links ===

*https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md   

*https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=138137

*http://www.makeuseof.com/tag/setup-wi-fi-bluetooth-raspberry-pi-3/
*http://www.nowiressecurity.com/configure-8021x-authentication-linux

<pre>
# can have more than one apparently


network={
        ssid="Acme Corp"
        scan_ssid=1
        psk=abc123
        id_str="work"
        priority=5

network={
        ssid="Linksys"
        scan_ssid=1
        psk=abc123
        id_str="home"
        priority=5
</pre>

= Spyder and More Python =
>>>
sudo apt-get install spyder

== Python Autoexec ==
*http://www.instructables.com/id/Python-Autoexec-for-Your-Raspberry-Pi/
*http://www.raspberrypi-spy.co.uk/2015/02/how-to-autorun-a-python-script-on-raspberry-pi-boot/
*
<pre>
sudo leafpad ~/.config/lxsession/LXDE/autostart
</pre>

<pre>
# =============== begin autoexec.py ============
# this is an example file, it shows how to open stuff, not
# a good example of what to open, which is up to you.
# this opens up so much stuff you may want to try it
# with some lines commented out.
# sudo leafpad ~/.config/lxsession/LXDE/autostart
# sudo leafpad ~/autoexec.py
# you can run it on the Pi as a normal idle or spyder program you do 
# not have to reboot each time

import os
from subprocess import Popen,PIPE

# normally the output really has no place to go so nothing will be seen from the print statment
print "starting autopython.py"

# -------------- mount an nas drive  ------------
# use os.system only if the command runs and exits othwise this program
# will stop until command is done ( not my real password )

os.system( r'sudo mount -t cifs -o username="russ",password="all9s",workgroup="MSHOME",file_mode=0777,dir_mode=0777,nobrl //192.168.0.120/share/_Source/rPi  /mnt/share1' )

# -------------- leafpad ------------
# this will run leafpad ( a nice little editor on the Pi ) with no file opended, the program does
# not wait to see how leafpad runs but goes on to the rest of the program 
# not waiting is a general feature of Popen as used here

#proc = Popen( [r"leafpad"] )

# -------------- leafpad ------------
# open a file, actually tis file in leafpad

proc = Popen( [ "leafpad /home/pi/autopython.py"], shell=True ) #

# -------------- starpusher ------------
# run the python game starpusher 

#proc = Popen( [r"python /home/pi/python_games/starpusher.py"], shell=True ) 

# -------------- idle ------------
# just open the idle ( a python environment

#proc = Popen( [r"/usr/bin/idle"] )

# -------------- idle editing a file ------------ 

#proc = Popen( [r"/usr/bin/idle  /home/pi/python_games/starpusher.py"], shell=True )  

# -------------- idle not editing a file but running it  ------------ 
# not a particularlly useful process

proc = Popen( [r"/usr/bin/idle -r /home/pi/python_games/starpusher.py"], shell=True )   # works, but runs program  

print " autopython.py all done "

# =================== eof  ========

</pre>

== My Projects ==
This is the directory I use, can we do it from file manager?  Yes so command below is optional.
<pre>
sudo mkdir /home/pi/SpyderP
</pre>



No module named pymysql
<pre>
sudo pip install pymysql



</pre>


ImportError: No module named pyperclip
<pre>
sudo pip install pyperclip
</pre>

The two above got the terminal running, even pyserial seems to have been included.

<pre>

</pre>

= My Sql =

[[Pi MySql]]



= Share Net Drive =

<pre>
which samba	             
</pre>

did not show samba but 
<pre>
sudo apt-get install samba
</pre>

showed it was there -- not this time it did a big install ?? did it remove and install, the mysteries continue

>>> create mount point

<pre>
sudo mkdir /mnt/share1
</pre>

this gave read access
<pre>
sudo mount -t  cifs -o guest  //192.168.0.170/share /mnt/share1
</pre>

read write with this 
<pre>
sudo mount -t cifs -o username="russ",password="passwordhere",workgroup="MSHOME",file_mode=0777,dir_mode=0777,nobrl //192.168.0.170/share/_Source/rPi  /mnt/share1
</pre>

= Arduino Setup =
# see the link below for more directions:
# http://tech.cyborg5.com/2013/05/30/irlib-tutorial-part-3d-installing-the-arduino-ide-on-a-raspberry-pi/

# use this for installation

sudo apt-get install arduino



= Arduino =

Use the menu based setup

where do the libr go 

*needed to download the zips, decompress
*move, rename to remove ilegal char
*include sensor.h in main program 
*install from zip did not work.


<pre>


/usr/share/arduino/libraries

get from on the pc at

to do file management with sudo privilidge
sudo pcmanfm

</pre>

<pre>
//#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321  white?  -- supposed to be more accurate than 11 -- may be more sens - favor in purchase 
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

#define NO_DHT   1     // number of dht units -- do not lie messes up the timing 


#define DHTPIN_1 5     // unit 1 data pin   what digital pin we're connected to on unit 1  pin numbering from top back away from you 
#define DHTPIN_2 5     // unit 2 data pain 


//       1: v+ power / 2: data 3: null/ 4: gnd
//          top view     
//       /-------------/
//       /   o o o o   /
//       /   1 2 3 4   /
//       /             /
//       /-------------/
// data uses a pull up of about  5 K

// LCD 
                              // old names
#define LCD_RS         13     // register select, pin to digital pin 12
#define LCD_ENABLE     12     // pin to digital pin 11
#define LCD_D4         8      // pin to digital pin 5
#define LCD_D5         9      // pin to digital pin 4
#define LCD_D6         10     // pin to digital pin 3
#define LCD_D7         11     // pin to digital pin 2


// Connect pin 1 (on the left) of the sensor to +5V
// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
// to 3.3V instead of 5V!
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor

</pre>

= Old =


*[[PiSetup]]

= Terminal and GreenHouse now Work =

= Clone = 

[[PiClone]]

= SSH from Windows =

[[Raspberry Pi SSH]]


[[Category:Arduino/RaspberryPi]]
@@ Line 1: / Line 1: @@
 Yet another setup for the Pi
-This whole article is largely obsolete -- 2016 is a long time ago, there is a more recent one, look for it.
@@ Line 16: / Line 13: @@
 *boot
-*Before installing new application or service in Raspbian, make sure to always type this into terminal: ( if this file is on your PI use cut and paste )  This takes awhile ( perhaps an hour? )
+*Before installing new application or service in Raspbian, make sure to
+*always type this into terminal: ( if this file is on your PI use cut and paste )
+This takes awhile ( perhaps an hour? )
 <pre>
 sudo apt-get update
@@ Line 110: / Line 109: @@
 </pre>
+=== Wireless Links ===
+*https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md
-== Links ==
-*https://askubuntu.com/questions/133343/how-do-i-set-up-xrdp-session-that-reuses-an-existing-session
-= Wireless Links and WiFi =
-if you have the desktop avaliable see the icon for wireless, possibly bottom left?
-ifconfig  and ifconfig -a  may give useful info
-*http://raspberrypihq.com/how-to-connect-your-raspberry-pi-to-wifi/
-*https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md   - includes info on encrypting password and other advanced info
 *https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=138137
@@ Line 133: / Line 119: @@
 <pre>
-sudo iwlist wlan0 scan
+# can have more than one apparently
-This will list all the networks in your vicinity along with some useful information for each network. To find your network name look for something that look like: ESSID:”Test Wifi Network”.
-</pre>
-<pre>
-# You should already have your SSID name, but if not, use
-# sudo iwlist wlan0 scan
-# This will reveal the SSID in the line “ESSID”. Next, open wpa_supplicant.conf:
-# sudo leafpad /etc/wpa_supplicant/wpa_supplicant.conf
-# can have more than one connection apparently
@@ Line 163: / Line 136: @@
          priority=5
 </pre>
-= Misc =
-== shortcuts ==
-* http://www.raspberry-projects.com/pi/pi-operating-systems/raspbian/gui/desktop-shortcuts
 = Spyder and More Python =