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by chorlton2080
Sat Sep 28, 2013 4:08 pm
Forum: Raspberry Pi OS
Topic: Cron problems in sending periodic email
Replies: 6
Views: 2315

Re: Cron problems in sending periodic email

Superb. I've learnt a lot with your help. Thank you
by chorlton2080
Sat Sep 28, 2013 3:25 pm
Forum: Raspberry Pi OS
Topic: Cron problems in sending periodic email
Replies: 6
Views: 2315

Re: Cron problems in sending periodic email

Thanks folks I agree that sudo was not required within the crontab, it was put in to eliminate any permissions issues. I did make a few changes at the same time, so it may be the case that the location of Python may not have needed to be explicity included, but I wasn't sure if PATH was a per-user c...
by chorlton2080
Sat Sep 28, 2013 2:52 pm
Forum: Raspberry Pi OS
Topic: Cron problems in sending periodic email
Replies: 6
Views: 2315

Re: Cron problems in sending periodic email

Well. That worked!

Thank you very much indeed :)
by chorlton2080
Sat Sep 28, 2013 1:59 pm
Forum: Raspberry Pi OS
Topic: Cron problems in sending periodic email
Replies: 6
Views: 2315

Cron problems in sending periodic email

Hi I have a Python script which finds the latest jpg in a directory and then emails it out. It is used with a Python motion detect routine, but because of false alarms I don't want the latter script to email every instance of motion it detects: I want a reassuring image every so often. The emailer s...
by chorlton2080
Sun Sep 22, 2013 4:42 pm
Forum: Python
Topic: Periodic cron job to email latest jpg from raspistill
Replies: 3
Views: 1733

Re: Periodic cron job to email latest jpg from raspistill

Ok, I'm making progress thanks to your help The script below finds the latest jpg and I have it printed to the console just to check prior to composing the email. My script is as follows: import subprocess import smtplib from email.mime.multipart import MIMEMultipart from email.mime.text import MIME...
by chorlton2080
Sun Sep 22, 2013 4:19 pm
Forum: Python
Topic: Periodic cron job to email latest jpg from raspistill
Replies: 3
Views: 1733

Re: Periodic cron job to email latest jpg from raspistill

This almost works, but at the end of the "head" pipe is a carriage return "/n" which spoils the filename variable. How can I chop the final "/n" from the variable?
by chorlton2080
Fri Sep 20, 2013 3:41 pm
Forum: Python
Topic: Periodic cron job to email latest jpg from raspistill
Replies: 3
Views: 1733

Periodic cron job to email latest jpg from raspistill

Hi everyone I have a need to periodically (say once an hour) email the latest picture taken by raspistill in timelapse mode (or the many motion capture scripts which use the MMAL module) My question is not in setting raspistill to do timelapse, but instead how to email the very latest completed imag...
by chorlton2080
Sun Sep 15, 2013 8:10 am
Forum: Beginners
Topic: GPIO Thru Connector?
Replies: 1
Views: 481

Re: GPIO Thru Connector?

I had exactly the same regrets when I built my Adafruit LCD module: I wished I had installed a stacking header.

It was almost impossible for me to desolder the existing header - the end result was me purchasing a new kit and a bunch of stacking headers to use on ever future project!
by chorlton2080
Sun Aug 18, 2013 1:35 pm
Forum: Networking and servers
Topic: Tested and reliable 3G Dongle Setup
Replies: 0
Views: 671

Tested and reliable 3G Dongle Setup

Given the Sakis3g code has disappeared (although it is available via some mirrors, I'd rather not) I've followed the steps on the post below http://www.raspberrypi.org/phpBB3/viewtopic.php?t=18996 and can confirm this works with a number of 3G Dongles. The latest Thee Huawei 3231 can even be powered...
by chorlton2080
Sun Aug 18, 2013 1:30 pm
Forum: Networking and servers
Topic: Huawei E3131 on Wheezy
Replies: 44
Views: 189013

Re: Huawei E3131 on Wheezy

This works so well, especially given the Sakis3g link no longer works! I would rather download the tools from the official repository (i.e. the tool you describe) than install some code from a third party I really can't vouch for. The latest Thee Huawei 3231 can even be powered directly from the Mod...
by chorlton2080
Sat Aug 10, 2013 8:22 pm
Forum: Networking and servers
Topic: Odd open connections
Replies: 0
Views: 374

Odd open connections

I've just installed iftop to get an idea of the bandwidth used whilst streaming with vlc. iftop is a great tool. However, I've noticed multiple strange servers connected to my ntp port (identifiable when pressing "p" within iftop). These are constantly exchanging a small amount of data (in...
by chorlton2080
Fri Aug 09, 2013 8:04 pm
Forum: Raspberry Pi OS
Topic: Strange connections on ntp port (using iftop)
Replies: 0
Views: 1064

Strange connections on ntp port (using iftop)

I've just installed iftop to get an idea of the bandwidth used whilst streaming with vlc. iftop is a great tool. However, I've noticed multiple strange servers connected to my ntp port (identifiable when pressing "p" within iftop). These servers are with "hu" (Hungary) and "...
by chorlton2080
Mon Aug 05, 2013 6:58 pm
Forum: Python
Topic: How to run a python or bash command from Apache
Replies: 4
Views: 2191

Re: How to run a python or bash command from Apache

Thanks for this. By way of expansion: What I'm after a way of calling a python script which I already have. This script takes a photo using the rasp camera module and then emails it to a defined email address. I want to make this "on-demand", so from an external location I can point toward...
by chorlton2080
Mon Aug 05, 2013 11:28 am
Forum: Python
Topic: How to run a python or bash command from Apache
Replies: 4
Views: 2191

How to run a python or bash command from Apache

Forgive my request which may have been answered a thousand times over, but in searching I haven't found anything that I can successfully implement. Please can someone offer a step by step example of getting an arbitrary python and bash script to execute either through a url request or a button press...
by chorlton2080
Sun Jul 21, 2013 9:00 pm
Forum: For sale
Topic: 2.8" TFT + Touch Shield Board
Replies: 206
Views: 95953

Re: 2.8" TFT + Touch Shield Board

Before I PM you with my order....

... is there any conceivable way of having access to the GPIO pins with this shield in place?
by chorlton2080
Sun Jul 21, 2013 8:39 pm
Forum: Python
Topic: Nokia Pi LCD
Replies: 253
Views: 121646

Re: Nokia Pi LCD

I've just posted the part of the code that outputs to the LCD initially, prior to polling the DHT22 (since that's not relevant). I did try to create an LCD class that existed in a seperate module which could be imported, but it proved unreliable. Thus I've crudely pasted the full code straight into ...
by chorlton2080
Sun Jul 21, 2013 7:51 pm
Forum: Python
Topic: Nokia Pi LCD
Replies: 253
Views: 121646

Re: Nokia Pi LCD

Got this working - and so easy it was thanks to everyone's contributions. Below is a photo of the LCD displaying humidity and temperature data from a DHT 22. 2013-07-21 20.42.12.jpg I'm using the wiringpi code which appeared early in this thread. The problem I have is I don't seem to be able to swit...
by chorlton2080
Thu Jul 18, 2013 9:55 pm
Forum: Advanced users
Topic: How to disable monitor power saving option in Raspberry PI?
Replies: 8
Views: 68771

Re: How to disable monitor power saving option in Raspberry

Yes. That makes sense. The clue is in the name: Xdotool.

I think it worked for me because I SSHd into Ubuntu whilst the X Session was running, with its resultant grip on the power saving features. This is not how Raspberry Pi users normally access the console.
by chorlton2080
Mon Jul 15, 2013 8:40 pm
Forum: Advanced users
Topic: How to disable monitor power saving option in Raspberry PI?
Replies: 8
Views: 68771

Re: How to disable monitor power saving option in Raspberry

I had the same problem on Ubuntu. I couldn't find an adequate fix so I used Xdotool to send a benign keystroke every 5 minutes using cron.

Can't check at this moment whether Xdotool is available on Wheezy, but if so that will be a solution to both Console and X screen blanking and screensavers.
by chorlton2080
Sat Jul 13, 2013 1:25 pm
Forum: Automation, sensing and robotics
Topic: Motion Emails Snapshots
Replies: 1
Views: 804

Re: Motion Emails Snapshots

Follow this tutorial (I've made reference to it elsewhere): http://through-the-interface.typepad.com/through_the_interface/2012/09/creating-a-motion-detecting-security-cam-with-a-raspberry-pi-part-2.html For Raspbian you need change one of the steps slightly to: sudo apt-get install python-gdata
by chorlton2080
Sat Jul 13, 2013 1:22 pm
Forum: Automation, sensing and robotics
Topic: How Do I Set Motion to Email Snapshots to Me
Replies: 5
Views: 12498

Re: How Do I Set Motion to Email Snapshots to Me

Or try this great tutorial:

http://through-the-interface.typepad.co ... art-2.html

If using Raspian you need python-gdata.
by chorlton2080
Sat Jul 13, 2013 1:16 pm
Forum: Automation, sensing and robotics
Topic: Adafruit_DHT 2302 4
Replies: 6
Views: 2485

Re: Adafruit_DHT 2302 4

You need to use the Python script which Adafruit publish. This scripts checks for nonsense values and only reports the good values. Because of the communication timing issues with using a RPi with these sensors, you will get a lot of garbage out. The Python script tries (and tries again) until it is...
by chorlton2080
Sat Jul 13, 2013 1:10 pm
Forum: Troubleshooting
Topic: Prevent SD-Card Corruption
Replies: 243
Views: 268963

Re: Prevent SD-Card Corruption

I've never (9 months of owning 2 RPi's) corrupted my SD card despite frequently switching off the power without initiating a shut down command; so complacent have I become that everything functions fine afterwards that I rarely do the soft shutdown. I know it's neither elegant or good practice. I do...
by chorlton2080
Sat Jul 13, 2013 1:03 pm
Forum: General discussion
Topic: Motion Package: not working properly with bash script
Replies: 5
Views: 1930

Re: Motion Package: not working properly with bash script

Can you take a different approach with Python and Motion thus:

http://through-the-interface.typepad.co ... art-2.html

The above worked well for me
by chorlton2080
Sat Jul 13, 2013 8:33 am
Forum: Beginners
Topic: Execute commands via Apache/web interface
Replies: 5
Views: 9907

Re: Execute commands via Apache/web interface

Maybe you can now tell us about your webcam setup using Apache :)

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