After following guides to install my preferred web server for the Raspberry Pi, Lighttpd, I always seem to have a problem with permissions when modifying files in or under /var/www/ folder.
In the guides that have I have gone through you do go through adding the Pi user to the www-data folder and what not but you will still get Permission Denied error when trying to add/remove/modify/create files when SFTP’ing in.
Continue reading Raspberry Pi FTP WWW Folder Permission issues
How to read a temperature probe, save the value to a MySQL database and then show the value on a webpage or just show the value with no database.
See this link for how to setup a DS18B20+ thermal probe with a Raspberry Pi, these instructions are the best that i have come across for this and will cover the bullet points below :
- Enabling the 1 wire features in the Raspbian OS
- Physically connecting the probe via a resistor to the RPi
- Instructions on how to read the probe and a script example
Once you have followed the above steps you should have a working temperature probe, that’s great.. but what can you do with it now!?
Continue reading Raspberry Pi Thermal Probe
The information below will help you to setup a Raspberry Pi with Raspbian OS that will play a slideshow/PowerPoint presentation using a PPT/PPTX or ODP file.
The system will be setup to automatically login to a desktop, load Libre Office Impress (PowerPoint alternative) and run a slide show presentation with custom slide show settings defined.
Please note, MS Powerpoint slideshows might not display 100% correctly in Libre, you can save from MS PP to an open format or to ensure an output as expected, just grab Libre office for PC or Mac, it is Free after all!!
Instead of using a costly full blown MS Windows desktop PC we can use a Raspberry Pi that not only costs hundreds of pounds less to buy but also consumes a minor percentage of power that a full desktop uses as well as being small enough to attach to the rear of the display device.
Continue reading Raspberry Pi Slideshow .PPT .PPTX .ODP
Below are instructions on how to configure a wifi adapter on the Raspberry Pi.
O/S – Raspbian Jessie Lite
Continue reading Raspberry Pi WiFi Config
By default, Cron is disabled meaning anything entered into ‘crontab’ wont be run.
To enable this function, follow the steps below:
Once logged into the Pi use the below command to open up the ‘rsyslog.conf’ file in the Nano editor
sudo nano rsyslog.conf
Once the rsyslog is loaded into nano, navigate to the below section and un-comment the ‘cron’ option
# First some standard log files. Log by facility.
Save the document by pressing CTRL + O and then CTRL+X close the editor.
Reboot the Raspberry Pi: