iamdual / webiopi Goto Github PK

When using e.g. digital I/O port IC's in many cases its necessary so set them 
up as input or output. Moreover, in some cases they may also provide the 
possibility to enable pull-ups or pull-downs. This setting-up can be done in 
custom macros with python api calls, but it would be much simpler to provide 
this as config option. For GPIOS there is already the option in config.

A parameter scheme for e.g. setting up 8 digital IO's could just be 

IIOOIOB_

where I = Input, O = Output, B = Bidirectional (like PCF8574), _ = default

For Pullup resistors this could be

UUUNDD_N

where U = Pullup enabled, D = Pulldown enabled, N = No pullup, _ = default again

As this options need some parsing this will be a little bit more effort to 
implement.

- Add getValue(gpio)
- Add getFunction(gpio)

CherryPy will improve HTTP handling and allow WebSocket as well as long polling

Hello,

I added the following to clients.py so I could poll temperatures from my 
onewire sensor... thought you might find it useful also.

    def inputtempf(self, channel):
        return float(self.sendRequest("GET", "/devices/temp%d/temperature/f" % channel))

Thank you,
Kewlj1313

When stopping webiopi after having changed any input to an output you get a 
warning like "RuntimeWarning: This channnel ....." from the RPi.GPIO module 
when you restart the module.

If you add "RPi.GPIO.cleanup() (or RPi.cleanup() in the latest file in the 
trunk path) to the code that stops the http server (direct before or after    
server.stop()) then this waring disappears.
This will reset all GPIO settings you change with webiopi, but you do that 
anyway right now when initializing your module, so this should not be a problem.

Best regards

What steps will reproduce the problem?
1. Continuously sending from the Gertboard's Atmel to the Raspberry
2. Opening http://.../app/serial-monitor
3. The input of the serial port does not show up though sending works (i.e. the 
config file has ttyAMA0 enabled and webiopi was called with the -c <configfile> 
switch)


WebIOPi version used?
=> Latest git read-only checkout version as of 09/05/2013

Python version used?
=> Python 2.7.3 (default, Jan 13 2013, 11:20:46) 
[GCC 4.6.3] on linux2


Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=> 2013-02-09-wheezy-raspbian.zip

Raspberry Pi board revision? (1 or 2)
=> 2

For Javascript side bugs, Browser?
=> firefox, linux

Please provide any additional information below.

The response type for GET in the read function has not been defined, therefore 
the function returned an XML Document instead of a file. 
Adding

from webiopi.decorators.rest import request, response

and the @response line in:

    @request("GET", "")
    @response("%s") 
    def read(self):

Solves the problem. Attached, the changed file.

Thanks for your great work on webiopi!

Super boulot, merci beaucoup juste 2 details:

1. Wrong Spelling of Celsius in sensor.py
2. Line 23 of sensor.py also a wrong spelling of the method "def 
__getCelius__(self):" 


What version of the product are you using? On what operating system?
r874


Best regards

Michael Burget

What steps will reproduce the problem?
1. Install webiopi with instructions from readme
2. Browse to http://<IP>/webiopi/
3. Login, nothing happens

What is the expected output? What do you see instead?
In js console Uncaught Error: NOT_FOUND_ERR: DOM Exception 8 line 81 
(head.insertBefore(style, scripts[0]);)

What version of the product are you using? On what operating system?
0.5.3 on raspberry wheezy

Please provide any additional information below.

Debian packages will speed up install by removing python-dev, setuptools and 
compilation process.

Hi.
I am running a Webiopi server inside a Python script and using a custom 
index.html.

After I uploaded from 0.5.1 to 0.5.3, everytime the page finishes loading from 
a browser, I get a UnicodeDecodeError on the terminal from where I ran the 
script. The page is loaded normally, though, and the server keeps running.

Here it is what I get:

Traceback (most recent call last):
  File "/usr/lib/python2.7/SocketServer.py", line 284, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 310, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/lib/python2.7/SocketServer.py", line 638, in __init__
    self.handle()
  File "/usr/lib/python2.7/BaseHTTPServer.py", line 340, in handle
    self.handle_one_request()
  File "/usr/lib/python2.7/BaseHTTPServer.py", line 328, in handle_one_request
    method()
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 469, in do_GET
    self.processRequest()
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 466, in processRequest
    raise e
UnicodeDecodeError: 'utf8' codec can't decode byte 0xff in position 62: invalid 
start byte

Any thoughts?
PS: This also happens when I run the default index.

Thanks!

It is obvious that we can determine the Raspi board revision remotely by 
looking at the number at position 3 in Mapping[1] or Mapping[2] when requesting 
this by /webiopi/map. However, the map answer is a longer string requiring some 
pattern-matching so determine stable and robust if the number at position 3 is 
a 0 or a 2.

It would be much more simple by adding this code to the doGet() method in 
webiopi.py:

    # revision
    elif relativePath == "revision":
        self.send_response(200)
        self.send_header("Content-type", "text/plain")
        self.end_headers()
        revision = "%s" % GPIO.BOARD_REVISION
        self.wfile.write(revision.encode())

The HTTP answer would just be a plain "1" or "2" (assuming that cpuinfo.c does 
its job correct) which is much more straight to use.

Add a config file :
- Login/Password
- Startup script
- Default state with default server

What steps will reproduce the problem?
1. Copy /etc/init.d/webiopi on a custom folder
2. copy /etc/webiopi/config on the same folder as step 1
3. edit webiopi script that you copied in step 1 and configure it to use config 
file that you copied on step 2
4. on config file copied in step 2 disable CoAP server setting enabled to false 
and disabling also multicasting
5. on config file configure your personal script in [SCRIPTS] section
6. if tcp port 8000 is already in use change it to 8081 (just for example)
7. launch webiopi startup script in your custom folder, python will daemonize, 
your script will be loaded, your tcp port will be used according your 
configuration BUT... CoAP server will be launched too even if disabled.

WebIOPi version used?
=>0.6.0

Python version used?
=>2.7.3

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=>Raspbian Wheezy

Raspberry Pi board revision? (1 or 2)
=>2

For Javascript side bugs, Browser?
=>Google Chrome but it's the same

I could disable CoAP changing /etc/webiopi/config but when I tried to use 
another config file located in my project folder I could set everything I 
needed but not disabling CoAP server.
I could set disabled in the file but when launching the daemon CoAP is launched 
anyway.

The sample code provided at https://code.google.com/p/webiopi/wiki/HTML doesn't 
work at following buttons:
a. The switch and LED buttons don't work.

Also, there isn't any examples/custom/index.html file.

What steps will reproduce the problem?
1. Install the webiopi as described in 
https://code.google.com/p/webiopi/wiki/INSTALL
2. Copy .html code from https://code.google.com/p/webiopi/wiki/HTML and put it 
in index.html in /usr/share/webiopi/htdocs
3. access the code at raspberrypi:8000
...

WebIOPi version used?
=>0.6.0

Python version used?
=>2.7

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=>Raspbian Wheezy

Raspberry Pi board revision? (1 or 2)
=>2

For Javascript side bugs, Browser?
=>

Please provide any additional information below.

Will it be  possible to add to the REST API an option to change the state of a 
pin for x seconds? As example: "HTTP POST /GPIO/(gpioNumber)/value/(0 or 
1)/xxxx" where xxxx is the seconds the pin will be on or off and after the xxxx 
second the pin will return to the old state.

When this is possible it will be so incredible great. My knowledge of python is 
not large enough to program it myself.

Thanks in advance.

Config options for devices allow setting of parameters like I2C slave address. 
(Currently) they have to be in the right order as they are used in __init__ of 
the device class. Sometimes lets say I want to change the 3rd parameter. In 
order to do this its also necessary to provide the 1st and 2nd parameter even 
if they can keep their defualt values. One possibility would be to copy the 
parameter=value scheme from __init__ into config. But that would be heavy 
additionally parsing effort.

A simple solution would be to allow e.g. "*" as placeholders for parameters 
that can keep their default values from __init__. The number/sequence of 
parameters will still have to be the correct one (trailing ones not nedded to 
be changed at the end can be ommitted), but errors arising from wrong 
hard-coded default values in config can be avoided.

Example

mydevice = DEVICECLASS * * 13

On implementation side, the code that scans config parameters could just pass 
"None" on all parameter positions that can keep default values so that the 
__init__ values provide the missing value again.

What steps will reproduce the problem?
1. create an ajax request to the http rest api, using another server even 
locally with different port
2. initiate the requset, and you will get CORS error
3.
...

WebIOPi version used?
=>

Python version used?
=>

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=>

Raspberry Pi board revision? (1 or 2)
=> 1

For Javascript side bugs, Browser?
=>

Please provide any additional information below.

Need to enable CORS headers on python server side, or allow jsonp return of 
data. I am attempting to communicate to the raspberry pi's GPIO via REST but 
since my nodeJs http server is running on port 80 and the webiopi is running on 
port 8000 it causes a CORS issue. JSONP wont work as data is transmitted as 
text/plain and callback is dropped.

What steps will reproduce the problem?
1. Install the webiopi module (in Arch ARM, it ends up in 
/usr/lib/python2.7/site-packages/_webiopi)
2. Run `python2.7 -m webiopi 8000'
3. This results in an ImportError: No module named _webiopi.GPIO (traceback 
shown at the bottom)

This can be fixed by adding a blank __init__.py file to the _webiopi module

===

WebIOPi version used?
=> 0.5.3

Python version used?
=> 2.7

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=> Arch ARM

Raspberry Pi board revision? (1 or 2)
=> 2

For Javascript side bugs, Browser?
=> Firefox

Please provide any additional information below.

Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/lib/python2.7/site-packages/webiopi.py", line 32, in <module>
    import _webiopi.GPIO as GPIO
ImportError: No module named _webiopi.GPIO

What steps will reproduce the problem?
1. Run WebIOPi as a service
2. Wait 24hours using it intermittently
3. Try to access it.. it is still running but does not respond.


WebIOPi version used?
One in the store (latest I think)

Python version used?
Unknown

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
Wheezy

Raspberry Pi board revision? (1 or 2)
Rev 2

For Javascript side bugs, Browser?
N/A

Please provide any additional information below.

First of all, many thanks for making this software available.

I am not a php programmer, so forgive me if I’ve missed something obvious. My 
index.html page looks as the sample, but with no info as to a pin being high or 
low—simply an empty grey box.  My log shows
"PHP Parse error:  syntax error, unexpected '[' in /var/www/webiopi/gpio.php on 
line 19"

This on a Linux raspi 3.1.9+ #90 Wed Apr 18 18:23:05 BST 2012 armv6l GNU/Linux

Thanks much.

Give ability to schedule tasks:
  * Macro
  * GPIO trigger
  * GPIO pulse
  * PWM output

Only macro scheduling is required as everything can be done in python macros.

REST mapping is easy : /schedule/$date/$RESTURI
/schedule/2013-01-11-23-59/GPIO/0/value/1
/schedule/*-*-*-*-*-0/macros/myMacro

Add Javascript functions to hide REST calls

Add schedule saving 

Add SPI Support

What steps will reproduce the problem?
1. yum install python-devel python3 python3-devel
2. Download, unpack, install webiopi

What is the expected output? What do you see instead?
[root@rpi ~]# python -m webiopi
/bin/python: No module named webiopi
[root@rpi ~]# python3 -m webiopi
/bin/python3: No module named webiopi

What version of the product are you using? On what operating system?
WebIOPi-0.5.3
Raspberry-PI Fedora 17 Remix (Linux rpi 3.2.27 #1 PREEMPT Mon Oct 1 22:37:41 
UTC 2012 armv6l armv6l armv6l GNU/Linux)
Python 2.7.3 + Python 3.2.3


PS. Later i reinstalled it and found error:

unable to execute gcc: No such file or directory
error: command 'gcc' failed with exit status 1
Build for Python 3.2.3 failed\n
WebIOPi installed for Python 3.2.3\n
Copying resources... OK\n
WebIOPi successfully installed
* You can use it with Python 2.7.3\t: sudo python -m webiopi
* You can use it with Python 3.2.3\t: sudo python3 -m webiopi

But why "WebIOPi successfully installed" if it obviosly failed?

Hi Eric,

when developing my driver for TSL2561 I imported the curent trunk (r885) into 
PyDev within Eclipse. When looking at the files the error checker found some 
potential errors which I want to give you to check before releasing 0.5.4.

coap.py
Line 45:
- getCode(format): missing self, should be: getCode(self, format):
- same for toString() just below

bus.py
Line 79:
- return "Bus(%s, %s)" % (busName, device) should be: return "Bus(%s, %s)" % 
(self.busName, self.device)

rest.py
Line 311:
- return (404, fname + " Not Found", M_PLAIN) should be: return (404, mname + " 
Not Found", M_PLAIN)

utils.py
Line 192:
-  except (socket.error, e): should be: except (socket.error): (not sure about 
this but "e" seems to be undefined)

Best regards

Andreas

I would like to have support for different interface methods like contrling 
things with checkboxes/radiobuttons.

It would be very nice if you add something like webiopi().createCheckbox...


Thanks for your efforts!

What steps will reproduce the problem?
1. install newest 2013-02-09-wheezy-raspbian.zip
2. upgrade and update components
3. install webiopi
...

WebIOPi version used?
=> 0.5.3

Python version used?
=>Python 2.7.3 (default, Jan 13 2013, 11:20:46)
[GCC 4.6.3] on linux2

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=>2013-02-09-wheezy-raspbian

Raspberry Pi board revision? (1 or 2)
=> 2

For Javascript side bugs, Browser?
=>not yet

Please provide any additional information below.
setup.log attached


In file included from /usr/include/features.h:356:0,
                 from /usr/include/limits.h:27,
                 from /usr/lib/gcc/arm-linux-gnueabihf/4.6/include-fixed/limits.h:169,
                 from /usr/lib/gcc/arm-linux-gnueabihf/4.6/include-fixed/syslimits.h:7,
                 from /usr/lib/gcc/arm-linux-gnueabihf/4.6/include-fixed/limits.h:34,
                 from /usr/include/python2.7/Python.h:19,
                 from native/bridge.c:23:
/usr/include/arm-linux-gnueabihf/sys/cdefs.h:1:1: error: stray ‘\4’ in 
program
/usr/include/arm-linux-gnueabihf/sys/cdefs.h:1:2: error: expected identifier or 
‘(’ before numeric constant
/usr/include/arm-linux-gnueabihf/sys/cdefs.h:1:2: error: stray ‘\203’ in 
program
/usr/include/arm-linux-gnueabihf/sys/cdefs.h:1:2: error: stray ‘\342’ in 
program
/usr/include/arm-linux-gnueabihf/sys/cdefs.h:1:2: error: stray ‘\6’ in 
program
/Build for Python 2.7.3 failed
....

Please expand the function of the input pins to a counter that is incremented 
on the rising or falling edge and a function to reset the counter.

I thank you and congratulate you on this great project!

Exception happened during processing of request from ('192.168.1.122', 61073)
Traceback (most recent call last):
  File "/usr/lib/python2.7/SocketServer.py", line 284, in _handle_request_noblock
    self.process_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 310, in process_request
    self.finish_request(request, client_address)
  File "/usr/lib/python2.7/SocketServer.py", line 323, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/usr/lib/python2.7/SocketServer.py", line 638, in __init__
    self.handle()
  File "/usr/lib/python2.7/BaseHTTPServer.py", line 340, in handle
    self.handle_one_request()
  File "/usr/lib/python2.7/BaseHTTPServer.py", line 328, in handle_one_request
    method()
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 469, in do_GET
    self.processRequest()
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 466, in processRequest
    raise e
UnicodeDecodeError: 'utf8' codec can't decode byte 0x89 in position 0: invalid 
start byte

What steps will reproduce the problem?
1. Fresh install of Wheezy (latest version as of 2/17/2013
2. Go to Pi Store
3. Install Webiopi

What is the expected output? What do you see instead?

I expected Webiopi to be installed, I got an error in terminal instead.


Please provide any additional information below.

I'm not sure what the issue is, I've Googled it to death and didn't get any 
results. The error in terminal says 

urlib.error.URLError: urlopen [Errorno - 5] No address associated with hostname 

I have run apt-get update and even tried installing this through the tar.gz 
package here. The error remains the same. After I get the error a browser 
window opens and says error connecting to page. I'm not sure if I have to 
download anything else to get the webpage to open, I haven't owned an Rpi for 
long. 

When I try to follow the installation instruction to update the python 
development header, there are several files cannot be fetched and returned 404 
error. Anyone can help?

What steps will reproduce the problem?
1. Install WebIOPi
2. Schedule to run at startup as per the instructions
3. Reboot

At this point I observe the service running, but non responsive on port 8000. 

WebIOPi version used?
=> Unknown, one from the store

Python version used?
=> Unknown, one that came with the distro

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=> Wheezy

Raspberry Pi board revision? (1 or 2)
=> Rev 2

For Javascript side bugs, Browser?
=> N/A

Please provide any additional information below.


Suggested fix:
* Add $network to the startup dependancies, fixed it for me.

If you want to control webiopi with your IPhone/IPad you can use every button 
only once. After activating and deactivating a buttonk, they stop working.

Tested on an IPhone 5 (6.0) and IPad 3 (6.0.1) 

What steps will reproduce the problem?
1. Install WebIOPi 
2. install hostapd and udhcpd to make Pi as Wireless Access Point
3. WebIOPi work well with wire plugged. Unplug the wire and reboot. Cannot 
access http://pi:8000/webiopi/

What is the expected output? What do you see instead?
-> It should work well both wiring and wireless

What version of the product are you using? On what operating system?
-> Raspberry both model A and B. Tenda 150N USB wireless. Raspbian “wheezy” 
update 2013-02-09. Browser are Safari on iPhone, Chrome on iPhone, Safari 6.0.2 
on OSX 10.8.2

Hi Eric, what do you think about CORS support (for making cross domain ajax 
calls possible without additional proxys)? 

Here you will find some infos about cors 
http://www.html5rocks.com/en/tutorials/cors/ and here I found a phyton server 
with cors in github: https://gist.github.com/gkatsev/3796275




WebIOPi version used?
=> 6

Python version used?
=> 3

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=> Wheezy

Raspberry Pi board revision? (1 or 2)
=> 1

For Javascript side bugs, Browser?
=> Crome,FF20

Please provide any additional information below.

What steps will reproduce the problem?

How can I change GPIO (4) direction to out at RI boot

I'm using this code but GPIO 4 is in IN mode at startup

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.o$
<html>
<head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <meta name="viewport" content = "height = device-height, width = 420, u$
        <title>WebIOPi | Control your Pi's GPIO</title>
        <script type="text/javascript" src="/webiopi.js"></script>
        <script type="text/javascript">

        webiopi().ready(function() {
                var content, button;
                content = $("#content");

                WebIOPi.prototype.map(4,"OUT",0);

                button = webiopi().createGPIOButton(4, "1");
                content.append(button); 
        });
        function mousedown() {
                webiopi().setValue(4, 1);
                }

        function mouseup() {
                webiopi().setValue(4, 0);
        }

        </script>
        <style type="text/css">
                button {
                        display: block;
                        margin: 5px 5px 5px 5px;
                        width: 360px;
                        height: 45px;
                        font-size: 24pt;
                        font-weight: bold;
                        color: White;
                }
                #gpio7.LOW {
                        background-color: White;
                }

                #gpio7.HIGH {
                        background-color: Red;
                }
        </style>
</head>
<body>
<div id="content" align="center"></div>
</body>
</html>







Raspberry Pi board revision? (1 or 2)
=>2

Optimize push 
- Long Polling ?
- Cometd / Bayeux ?
- WebSocket ?

Add UART Support to WebIOPi

- Can already be used with pyserial and /dev/ttyAMA0
- Need to add UART enabling/disabling

Happy new year and thanx for the ongoing work with webiopi.

I have done some implementation work with custom python server modules now and 
implemented a way that helps to make this task easier for me. Maybe we can 
share this with other users of webiopi server modules.

I implemented a server module called webiopi_mysrv.py that has all necessary 
things inside it to be run as server module in interactive mode (development 
time) as well in deamon mode (just runtime). I place this module in a known 
path (e.g. /home/pi/webiopi_mysrv/ and register it once with a custom 
webiopi_mysrv.py.init (see attachments) that gets installed as webiopi_mysrv in 
/etc/init.d/ the usual way. This way that module can be started and stopped as 
deamon or even automatically at startup without having to do the installation 
stuff too often. I also can run it in interactive mode and stop in with CTRL-C 
during development and bugfixing. I can have multiple different versions of 
webiopi_mysrv.py and just by renaming them I can test different alternatives 
even in deamon mode without having to do the installation stuff again and again.

I also discovered that when my module is terminated in deamon mode, the 
cleaning up code at the end is not executed. For that reason I added some code 
that catches the SIGTERM when the module is terminated in deamon mode so that 
my cleanup code is also executed in this case. I have attached a version of 
webiopi_mysrv.py that is implemented according to demo.py but contains all the 
stuff that makes server initialization and finalization more streamlined and 
does cleanup the same way in interactive and deamon mode to be consistent. It 
also contains mode comments for others to understand how to use it and adds an 
example macro without parameters for completeness of pythton server module 
usage possibilities.

Maybe this is a good improvement for the python server module example and its 
usage documentation.

Best regards.

In bridge.c the comment on line 184

// python function output(channel, value)

shoud be something like

// python function outputSequence(channel, period, sequence) 

See http://www.raspberrypi.org/phpBB3/viewtopic.php?t=36670&p=315941

Add parameter configuration possibilities to HttpURLConnection:

// Timing parameters
urlConnection.setReadTimeout(...);
urlConnection.setConnectTimeout(...);

// Sometimes needed for POST, some HTTP servers complain if nothing is 
// posted (like webiopi does) but content-type is unset
urlConnection.setRequestProperty("Content-Type", "text/plain");

// Avoid zipping  
urlConnection.setRequestProperty("Accept-Encoding", "identity");

// Cache management
urlConnection.setUseCaches(false);

Add HTTP (and maybe CoAP) response handling management possibilities:

// Error handling
urlConnection.getResponseCode();
urlConnection.getResponseMessage();
// allow direct JSON response switching by detecting response mime type
urlConnection.getContentType();

Put those values into a RestResponse Object that may also contain the response 
result itself.

Java (partly Python) client lacks:

- "*", /map, /version, /revision
- /sequence and /pulse for NativeGPIO
- all /devices/name/*/... paths
- /macro
- /...... generic like for e.g. routes
- JSON response handling helpers

Hope that helps just as a proposal list.

Andreas

webiopi.js  still has the Google Analytics code, with a hard coded account id. 
Might be an idea to either comment it out or remove altogether.

Add I2C support throught /dev/i2c-x or /dev/mem

Hi Eric,

I just made a WebIOPi 0.5.3 fresh install with a fresh Raspbian 2012-12-16 
image to have a clean setup. The installation with setup.sh failed because it 
was unable to apt-get the python development heders (both for python 2.7 and 
python3). I assume some package authentication failure as the shell reported 
something like that.

Doing a manual sudo apt-get install -y --force-yes python3-dev solved the 
problem for me. Maybe this option has to be added to the setup.sh or a hint to 
optionally update the package authentication (I dont know the commend right 
now) may help.

Regards Andreas

What steps will reproduce the problem?
1. Disconnect from access to DNS
2. Start webiopi with: "sudo python -m webiopi"

What is the expected output? What do you see instead?
The expected response is that webiopi starts normally with the hostname set to 
'localhost'

Actual response:
pi@raspberrypi ~/webiopi/WebIOPi-0.5.3 $ sudo python -m webiopi
Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 489, in <module>
    main(sys.argv)
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 481, in main
    server = Server(port=port, passwdfile=passwdfile)
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 106, in __init__
    self.host = getLocalIP()
  File "/usr/local/lib/python2.7/dist-packages/WebIOPi-0.5.3-py2.7-linux-armv6l.egg/webiopi.py", line 98, in getLocalIP
    except (socket.error, e):
NameError: global name 'e' is not defined

What version of the product are you using? On what operating system?
0.5.3 on Raspbian

Please provide any additional information below.
The fix is the change line 98 of python/webiopi.py to:

  except socket.error as e:

and reinstall. I found I had to manually remove the directory python/build 
before the setup would reinstall correctly.

ENHANCEMENT - Patch against Rev 605

Really like webiopi. I am planning to use it as the basis of a swimming pool 
control server. To do this I am using a Dallas 1-Wire temperature sensor. I 
decided I might as well add 1-Wire functionality to webiopi if I have to write 
it anyway.

The patch is based on the w1-gpio module. The first thing it does is detect if 
the module is loaded and if so turns GPIO pin 4 into ALT mode to stop it being 
used. It adds at the bottom of the table a list of all detected 1-Wire devices 
and lets you read from them. The raw data is displayed or by checkbox can have 
the temperature extracted.

I have updated the RESTAPI docs to show what you can do. 1-Wire can be enabled 
or disabled which loads or unloads the w1-gpio module. A list of devices can be 
requested and then the data for a deviceId can be taken. This is easily 
manipulated by Javascript like extracting the temperature.

The webiopi main page will show the 1-wire devices below the GPIOs only when it 
is enabled. The list is updated dynamically so new devices will appear when 
they have been connected with no user intervention. They will also be removed 
when disconnected.

I only have one device so have only tested with that but it should work with 
many. It will only work with devices that give data in the w1_slave file. It 
does not support writing to devices but it could be added easily.

Hope it is useful to others. Any comments welcome.

What steps will reproduce the problem?
1. Connect a Dallas (or any one wire temp sensor)
2. Cool the sensor down below 10 degrees C
3. Try to access the temperature via a rest query.

What is the expected output? What do you see instead?
Expected: A temperature
Instead: 
Error response
Error code: 403
Message: invalid literal for int() with base 10: '=5062'.

What version of the product are you using? On what operating system?
r894 on RaspberryPi

Please provide any additional information below.

I located the issue and was able to get it working again.  This is caused in 
the sensor.py file by the following:

    def __getCelsius__(self):
        data = self.read()
        lines = data.split("\n")
        if lines[0].endswith("YES"):
            temp = lines[1][-5:]
            return int(temp) / 1000.0

lines[1][-5:] is expecting 5 characters but when the sensor is below 10 degrees 
C it returns integers such as 9550.

I was able to fix it by doing the following strip of the = sign:

    def __getCelsius__(self):
        data = self.read()
        lines = data.split("\n")
        if lines[0].endswith("YES"):
            temp = lines[1][-5:]
            temp = temp.strip('=')
            return int(temp) / 1000.0

Thank you!
Kewlj1313

>>> from webiopi.clients import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.6/dist-packages/WebIOPi-0.6.0-py2.6-linux-x86_64.egg/webiopi/__init__.py", line 17, in <module>
    import _webiopi.GPIO as GPIO
_webiopi.GPIO.SetupException: This module can only be run on a Raspberry Pi!

What steps will reproduce the problem?
1. Wrong Voltage for example MCP3008 connected to 5V reference.
2.
3.
...

WebIOPi version used?
=> 0.6.0

Python version used?
=> python3

Distro used? (WebIOPi has only been tested on Raspbian Wheezy)
=> Raspbian Wheezy

Raspberry Pi board revision? (1 or 2)
=> 2

For Javascript side bugs, Browser?
=>

Please provide any additional information below.

I have am MCP3008 connected via I2C to my Raspberry Pi. As i have a different 
power Supply for this i connected everything to 5V. Well your Software is 
really great but i found out that the Voltage was shown false with 3.3 Volt 
maximum.
I found out that this was hard coded in your Code. It would be cool if we could 
set this reference Voltage in the mail config file.

Add edge dection support