Raspberry Pi Forums

greatdane

Excellent, Happy it helped and thanks for the heads-up

greatdane

In this line your are missing a single quote: $output=shell_exec(python /home/pi/hello.py'); Should be: $output=shell_exec('python /home/pi/hello.py'); However, you may also have to provide the full path to your python executable like this: $output=shell_exec('/usr/bin/python /home/pi/hello.py'); (y...

greatdane

I have a Raspberry Pi v3 which has the following tasks: 1) Controlling X10 appliances via USB-to-serial cable 2) Controlling 433MHz appliances wirelessly (GPIO) 3) IR Remote Control Extender using LIRC 4) Media player via USB Audio device So, as you can see from the above I have 2 USB devices connec...

greatdane

As topguy says, it's beneficial to write logging info from the application itself (use the full path for the output file). A quick check could be to start it like this from rc.local /usr/bin/python /home/pi/KilnServer.py >> /tmp/KilnServer.log & Restart Pi and examine /tmp/KilnServer.log for any mes...

greatdane

At startup your Pi doesn't know your environment. That means it doesn't know where your python executable resides. On my Pi it is /usr/bin/python, but could be different on yours. Find out by typing: which python in a terminal. Then replace 'python' with the full string in the startup script. Btw., ...

greatdane

Excellent. Happy it helped

greatdane

For anyone interested: I have successfully upgraded the Status RCS-K09 receivers to remember the configured address after power loss, simply by adding a 24LC16B EEPROM and a 22k resistor to the units. The components, marked as U3 and R15, are originally missing from the PCB, but are easily added. Se...

greatdane

There are lots of radio stations also broadcasting over the internet. If that works for you, you can use VLC to play them on the Raspberry Pi, but I suggest you add an external USB sound card for the best output.

VLC can also be controlled from command line so you can use it on a headless Pi as well.

greatdane

You know if you were logged in as root when you created the job.

Check like this:
-Log in as root
- in a terminal type: crontab -l

If the job is listed it was created as root.

greatdane

if the cron job is run as root, sudo is not necessary

greatdane

cron doesn't know about your environment such as the defined PATH. You must provide the full path for the python executable:
/usr/bin/python

greatdane

I assume you mean dnsmasq

greatdane

I think the signal loss in such kind of RF switch will be too high to make sense, however, with TX boards selling for just a few quid, adding another seems like the easiest AND most efficient solution.

greatdane

If you use a separate TX board per aerial I can't see why that wouldn't work.

greatdane

I added one of these aerials to my setup and can now use my Pi to control sockets more than 15m away.

http://www.ebay.co.uk/itm/3db-Antenna-a ... 43b91d5989

greatdane

Thanks

greatdane

Did you ever make this work ? If so, can you share the solution please ?

Thanks

greatdane

really .... ?

greatdane

I don't do anything to the Pi before turning off the TV. It actually takes a while before the power disappears from the USB socket, but it does eventually die. Never had any problems with booting up afterwards (RaspBMC).

Not sure if you could intercept the CEC code, but would think so.

greatdane

Hi.

Has anyone written some code in C++ to control the PCD8544 type LCD ?

I so, would you like to share ?

Cheers

greatdane

I do that by connecting Pi (micro USB) to a USB output on my TV. Works fine for XBMC on Pi.

greatdane

Excellent service. Thanks.

Ordered Sunday night. Was contacted Monday and received goods Tuesday.

Perfect. Also good value for money.

greatdane

try running as root or use sudo

greatdane

I think it may have a lot of potential.

What are the levels of the digital & analogue signals respectively ?

Do you have some screenshots of those signals ?

greatdane

http://www.hoagieshouse.com/RaspberryPi ... CPlug.html

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