Xbee on the raspberry pi, java api

Here is an api for java code to access the xbee on the raspberry pi.

the largest amount of work seems to be getting the java environment running on the pi.

http://rapplogic.blogspot.com/2013/06/xbee-on-raspberry-pi.html

https://code.google.com/p/xbee-api/

Oracle Java for the arm

http://www.oracle.com/technetwork/java/embedded/downloads/javase/index.html

Xbee Wireless Sensor Gateway with Raspberry Pi

save

http://tinajalabs.wordpress.com/2012/09/02/raspberry-pi-as-an-xbee-wireless-sensor-network-gateway/


Gateway and useful gizmo.

Raspberry Pi as an Xbee Wireless Sensor Network Gateway

Notes about Raspberry Pi, an ARM based pc about the size of a deck of cards which costs $35. I might use it as a replacement for the Asus WL520 GU wifi modems I’ve been using as an Xbee WSN Gateway.

General References

• Home Page: http://www.raspberrypi.org/
• Wiki: http://elinux.org/RaspberryPiBoard
• Quick Start: http://www.raspberrypi.org/quick-start-guide
• Verified Peripherals: http://elinux.org/RPi_VerifiedPeripherals#USB_WiFi_Adapters
• http://learn.adafruit.com/downloads/pdf/send-raspberry-pi-data-to-cosm.pdf
• OpenWRT for the Raspberry Pi- probably won’t use this as OpenWRT is focused on WiFi functionality.
• Raspberry Pi OS Downloads

OS

I started out with the 4G SD Card from Newark that was pre-loaded with wheezy-debian. Now I’m using the distro from Adafruit called Occidentalis v0.2.  It includes ssh and other features that makes it easier to confugure.

• Other Available Distros
• Raspbian - http://www.raspbian.org/
• Wheezy Debian zip file

Copy the image to a 4G SD Card using Win32DiskImager.  Basically you download an OS image to a windows machine and copy it to an SD Card.  When using WinDiskImager, pay close attention to your read/write actions because it’s possible to overwite the wrong drive.
Before selecting an SD Card, look at the list in Verified Peripherals.  Not all SD Cards work the same, and I spent a lot of time trying to launch the OS even though the image copy was successful.  If you get to the point where you’ve successfully copied the image but it won’t boot up, cut your losses and try another SD Card.

• login as: pi, password: raspberry
• I set up a root account and did most of the installation as root

Expanding the partition on the sccard

Once installed, expand the SD Card partition to fill the 4G memory space. The image on the 4G sdcard is 1.8G. This describes how to expand the partition to fill the entire 4G.

• https://projects.drogon.net/raspberry-pi/initial-setup1/

SSH

Set up SSH so you can access the Raspberry Pi from a terminal program of via Putty and/or WinSCP.

ssh-keygen -t rsa -C "your_email@youremail.com"

XBee connection

I used the CISECO daughter board kit which costs about $6 which has a GPIO connector and a place to hook up an xbee to the serial port on the GPIO.  It derives the 3.3V from the GPIO and it includes an array of through holes for misc prototyping.

• XBee Radio PCB daughter board- by CISECO – basically a breakout board for the GPIO connections with access to the serial port and 3.3V.
• Getting started with GPIO and PythonThis is the first of two articles showing basic GPIO on the Raspberry-Pi using the prototype area of the Slice of Pi. This covers basic details on the GPIO pins, setting up a Python library to allow access to the GPIO. There is an example circuit to build on the Slice and some code to get the outputs working. This was originally a blog post on Matts blog at http://lwk.mjhosting.co.uk

• Serial port on the GPIO connector accessed as: /dev/ttyAMA0
• More notes on serial Interfacing: http://lavalink.com/2012/03/raspberry-pi-serial-interfacing/

Raspberry Pi with XBee daughterboard, Slice of Pi

On the Adafruit distro, Occidentalis v0.2, I was having some issues with reading the serial port in my python code.  I kept getting erros related to the serial port being in use.  Some research got me to this article on the RaspberryPi.org site and this article from Clayton’s Domain.  I edited a file, /boot/cmdline.txt, and this is what it came down to (all on one line):

/boot/cmdline.txt
dwc_otg.lpm_enable=0 rpitestmode=1 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait

Install Apache on Raspberry Pi

Eventually I will want to set up a web interface to allow users to edit the gateway config items, like the network protocol and to manage the various sensors, python scripts, etc.  For now, I’m just going to manage it it by ssh command line.

• http://tinkernut.com/wiki/page/Episode_320
• Webmin- “Webmin is a web-based interface for system administration for Unix. Using any modern web browser, you can setup user accounts, Apache, DNS, file sharing and much more. Webmin removes the need to manually edit Unix configuration files like /etc/passwd, and lets you manage a system from the console or remotely.”
• Raspcontrol- PHP based Dashboard application. More about status then configuring.
• 
  

Installing Python components

Rasberry Pi, default linux install, has python already installed.
I needed these modules to allow me to access various web services like Cosm (pachube), Thing Speak, Open.Sen.se, and my own SOAP based service that I wrote in C#.

pyserial

We need some extra libs to run the sensor programs.
Check if python is installed and what version is installed

python -V

Change directory:

cd /home/tinaja/downloads/

WGet the file then unpack it:

wget http://sourceforge.net/projects/pyserial/files/pyserial/2.5/pyserial-2.5.tar.gz/download
tar -zxvf pyserial-2.5.tar.gz

cd pyserial-2.5
python setup.py install

simplejson 2.6.1

simplejson 2.6.1 is compatible with python 2.5.
Change directory:

cd /home/tinaja/downloads/

WGet the file then unpack it:

wget http://pypi.python.org/packages/source/s/simplejson/simplejson-2.6.1.tar.gz
tar -zxvf simplejson-2.6.1.tar.gz

cd simplejson-2.6.1
python setup.py install

suds

The suds libs provide services for SOAP calls.
Need to install python’s setup tools:

apt-get install python-setuptools

Change directory:

cd /home/tinaja/downloads/

wget https://fedorahosted.org/releases/s/u/suds/python-suds-0.4.tar.gz
tar -zxvf python-suds-0.4.tar.gz

cd python-suds-0.4/
python setup.py install

eeml

Used by Cosm (pachube)

http://pypi.python.org/pypi/python-eeml/1.1.0
? git clone git://github.com/petervizi/python-eeml.git

# cd /home/tinaja/downloads/
# wget http://pypi.python.org/packages/source/p/python-eeml/python-eeml-1.2.0.tar.gz
# older version - wget http://pypi.python.org/packages/any/p/python-eeml/python-eeml-1.1.0.linux-i686.tar.gz
# tar python-eeml-1.2.0.tar.gz
# python setup.py install

• Source code: https://github.com/petervizi/python-eeml/

Code

I’ve loaded the python code I’m using on GitHub:
https://github.com/TinajaLabs/gateway_raspi

Wifi

The Raspberry Pi can be wifi enabled with a USB based wifi device. The main concern would be with power consumption; the raspberry pi runs off of a 5V (currently 700mA) supply (like a cell phone charger) and a wifi device might strain the load.

• http://elinux.org/images/4/4b/Raspberry_Pi_wireless_adapter.pdf

For now (8.26.2012) the wired ethernet configuration works great.  It can just plug into a IP provider modem.

To change the boot-up text

Did this to brand the OS as one I set up.  Only for show…
edit /etc/moto.tail

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

Type 'startx' to launch a graphical session

This version, from Adafruit's Occidentalis v0.2, set up by:
 _____ _              _         _          _         
|_   _(_)_ __   __ _ (_) __ _  | |    __ _| |__  ___ 
  | | | | '_ \ / _` || |/ _` | | |   / _` | '_ \/ __|
  | | | | | | | (_| || | (_| | | |__| (_| | |_) \__ \
  |_| |_|_| |_|\__,_|/ |\__,_| |_____\__,_|_.__/|___/
                   |__/ TinajaLabs.com, Summer 2012
-----------------------------------------------------

To set a program to start at boot-up

To automatically run the main python script, allsensors.py, when the computer starts…
Edit /etc/rc.local and add the python line shown below:

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi

# add this for Tinaja Labs sensor tracking
python /home/tinaja/allsensors.py &

exit 0

To set up Tomcat Server

At some point I might want to set up a Tomcat server and use it with some Java apps.  Later.

• http://macgyverdev.blogspot.com/2012/08/raspberry-pi-how-to-get-ssh-and-tomcat.html

Java

• JDK for Linux ARM, JRE for Mac OS X: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=34&t=14635

To watch the message log file

This allows you to see the system messages generated by the script as it sends various sensor readings to the web services.

cd /var/log/
tail -f messages

To kill the Tinaja python script

Look for the process id of the python script with this command:

ps aux # for a full list
ps aux | grep python  # to see only python processes

Take note of the process id number and issue this command:

kill 9999 # where 9999 is the process id number

That’s all I have for now, hope you found something useful here.

**********************************************

another example page

http://www.desert-home.com/2013/09/raspberry-pi-and-xbee.html


I used pip to install xbee and got version 2.1.0 the command was: sudo pip install xbee Then you can use pip to tell you where it wound up. Once you get it installed, you can just import it and start using it.

promiscuous mode monitor:

http://www.desert-home.com/2012/10/monitoring-my-xbee-network.html

**********************************

Another Xbee python tool:  Skinner

http://jeffskinnerbox.wordpress.com/2012/12/22/selecting-xbee-radios-and-supporting-softwaretools/

**********************************

Earlier xbee effort with breadboard buildup for Xbee

http://lookmanowire.blogspot.com/2012/07/raspberry-pi-and-xbee.html

   corollary, enabling Raspberry Pi for 

Arduino Mega 2650 pin mapping

Arduino Mega 2650 pin mapping

Arduino Mega 2560 PIN diagram

The source SVG file is also available for download: PinMapping2560.zip

Arduino Mega 2560 PIN mapping table

Pin Number	Pin Name	Mapped Pin Name
1	PG5 ( OC0B )	Digital pin 4 (PWM)
2	PE0 ( RXD0/PCINT8 )	Digital pin 0 (RX0)
3	PE1 ( TXD0 )	Digital pin 1 (TX0)
4	PE2 ( XCK0/AIN0 )
5	PE3 ( OC3A/AIN1 )	Digital pin 5 (PWM)
6	PE4 ( OC3B/INT4 )	Digital pin 2 (PWM)
7	PE5 ( OC3C/INT5 )	Digital pin 3 (PWM)
8	PE6 ( T3/INT6 )
9	PE7 ( CLKO/ICP3/INT7 )
10	VCC	VCC
11	GND	GND
12	PH0 ( RXD2 )	Digital pin 17 (RX2)
13	PH1 ( TXD2 )	Digital pin 16 (TX2)
14	PH2 ( XCK2 )
15	PH3 ( OC4A )	Digital pin 6 (PWM)
16	PH4 ( OC4B )	Digital pin 7 (PWM)
17	PH5 ( OC4C )	Digital pin 8 (PWM)
18	PH6 ( OC2B )	Digital pin 9 (PWM)
19	PB0 ( SS/PCINT0 )	Digital pin 53 (SS)
20	PB1 ( SCK/PCINT1 )	Digital pin 52 (SCK)
21	PB2 ( MOSI/PCINT2 )	Digital pin 51 (MOSI)
22	PB3 ( MISO/PCINT3 )	Digital pin 50 (MISO)
23	PB4 ( OC2A/PCINT4 )	Digital pin 10 (PWM)
24	PB5 ( OC1A/PCINT5 )	Digital pin 11 (PWM)
25	PB6 ( OC1B/PCINT6 )	Digital pin 12 (PWM)
26	PB7 ( OC0A/OC1C/PCINT7 )	Digital pin 13 (PWM)
27	PH7 ( T4 )
28	PG3 ( TOSC2 )
29	PG4 ( TOSC1 )
30	RESET	RESET
31	VCC	VCC
32	GND	GND
33	XTAL2	XTAL2
34	XTAL1	XTAL1
35	PL0 ( ICP4 )	Digital pin 49
36	PL1 ( ICP5 )	Digital pin 48
37	PL2 ( T5 )	Digital pin 47
38	PL3 ( OC5A )	Digital pin 46 (PWM)
39	PL4 ( OC5B )	Digital pin 45 (PWM)
40	PL5 ( OC5C )	Digital pin 44 (PWM)
41	PL6	Digital pin 43
42	PL7	Digital pin 42
43	PD0 ( SCL/INT0 )	Digital pin 21 (SCL)
44	PD1 ( SDA/INT1 )	Digital pin 20 (SDA)
45	PD2 ( RXDI/INT2 )	Digital pin 19 (RX1)
46	PD3 ( TXD1/INT3 )	Digital pin 18 (TX1)
47	PD4 ( ICP1 )
48	PD5 ( XCK1 )
49	PD6 ( T1 )
50	PD7 ( T0 )	Digital pin 38
51	PG0 ( WR )	Digital pin 41
52	PG1 ( RD )	Digital pin 40
53	PC0 ( A8 )	Digital pin 37
54	PC1 ( A9 )	Digital pin 36
55	PC2 ( A10 )	Digital pin 35
56	PC3 ( A11 )	Digital pin 34
57	PC4 ( A12 )	Digital pin 33
58	PC5 ( A13 )	Digital pin 32
59	PC6 ( A14 )	Digital pin 31
60	PC7 ( A15 )	Digital pin 30
61	VCC	VCC
62	GND	GND
63	PJ0 ( RXD3/PCINT9 )	Digital pin 15 (RX3)
64	PJ1 ( TXD3/PCINT10 )	Digital pin 14 (TX3)
65	PJ2 ( XCK3/PCINT11 )
66	PJ3 ( PCINT12 )
67	PJ4 ( PCINT13 )
68	PJ5 ( PCINT14 )
69	PJ6 ( PCINT 15 )
70	PG2 ( ALE )	Digital pin 39
71	PA7 ( AD7 )	Digital pin 29
72	PA6 ( AD6 )	Digital pin 28
73	PA5 ( AD5 )	Digital pin 27
74	PA4 ( AD4 )	Digital pin 26
75	PA3 ( AD3 )	Digital pin 25
76	PA2 ( AD2 )	Digital pin 24
77	PA1 ( AD1 )	Digital pin 23
78	PA0 ( AD0 )	Digital pin 22
79	PJ7
80	VCC	VCC
81	GND	GND
82	PK7 ( ADC15/PCINT23 )	Analog pin 15
83	PK6 ( ADC14/PCINT22 )	Analog pin 14
84	PK5 ( ADC13/PCINT21 )	Analog pin 13
85	PK4 ( ADC12/PCINT20 )	Analog pin 12
86	PK3 ( ADC11/PCINT19 )	Analog pin 11
87	PK2 ( ADC10/PCINT18 )	Analog pin 10
88	PK1 ( ADC9/PCINT17 )	Analog pin 9
89	PK0 ( ADC8/PCINT16 )	Analog pin 8
90	PF7 ( ADC7 )	Analog pin 7
91	PF6 ( ADC6 )	Analog pin 6
92	PF5 ( ADC5/TMS )	Analog pin 5
93	PF4 ( ADC4/TMK )	Analog pin 4
94	PF3 ( ADC3 )	Analog pin 3
95	PF2 ( ADC2 )	Analog pin 2
96	PF1 ( ADC1 )	Analog pin 1
97	PF0 ( ADC0 )	Analog pin 0
98	AREF	Analog Reference
99	GND	GND
100	AVCC	VCC