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by benderman
Wed Feb 18, 2015 10:52 am
Forum: Automation, sensing and robotics
Topic: Motor control code
Replies: 10
Views: 2018

Re: Motor control code

Thank you.

So the connections must be OK if motor2 runs forwards? Can part of an L293 fail or is it all or nothing?
by benderman
Wed Feb 18, 2015 10:38 am
Forum: Automation, sensing and robotics
Topic: Motor control code
Replies: 10
Views: 2018

Motor control code

Hi Guys, I wonder if you guys could review my code? Both motors run OK forward but only motor2 runs backwards. I'm using an L293D to run two motors and I have checked all the connections and I think the code is OK but was wondering if there are any obvious errors? import RPi.GPIO as GPIO from time i...
by benderman
Wed Feb 11, 2015 9:44 pm
Forum: Networking and servers
Topic: Web server confusion
Replies: 8
Views: 1256

Re: Web server confusion

Thanks for the ideas but I'm going to give up on the web server idea, it's all a bit beyond me.
by benderman
Tue Feb 10, 2015 12:32 pm
Forum: Networking and servers
Topic: Web server confusion
Replies: 8
Views: 1256

Re: Web server confusion

Hi, I've tried clearing all the browser data and cache but still get the 'old' home page, really not sure what to do next. I've not really seen much about this issue when googling it.

Plugging it into the router is much quicker, thanks.

Ben
by benderman
Mon Feb 09, 2015 7:48 pm
Forum: Networking and servers
Topic: Web server confusion
Replies: 8
Views: 1256

Re: Web server confusion

Thanks for the pointer.

The clock is on the correct date and time and the file properties say it was last modified yesterday and last accessed 2 days ago.

That seems OK, I guess?

Also the PI is on the wifi but trying to access it seems painfully slow from outside?
by benderman
Mon Feb 09, 2015 6:22 pm
Forum: Networking and servers
Topic: Web server confusion
Replies: 8
Views: 1256

Web server confusion

Hi all, Any reason why I should see a different index file when I log in on my home network and when I log on externally? I have changed the default index.html which I see fine internally but I get a variation of the default page (which I'd previously modified). When I check /var/www and do an ls I ...
by benderman
Sun Feb 01, 2015 11:11 am
Forum: Beginners
Topic: Pi as a web server
Replies: 1
Views: 311

Pi as a web server

Hi all, I am looking for some suggestions as to how I should proceed with the Pi web server. I have the LAMP stack all set up and have checked the it works page so I know that is all good. I have googled all of this and am getting more confused as I go! I have: Set up a static IP address for my Pi c...
by benderman
Wed Jan 21, 2015 1:43 pm
Forum: Automation, sensing and robotics
Topic: PWM to control a motor
Replies: 7
Views: 1453

Re: PWM to control a motor

These forums are great! thanks for the tips guys.

As a noob to all this stuff it really helps to make the learning curve a little shallower.
by benderman
Tue Jan 20, 2015 1:04 pm
Forum: Automation, sensing and robotics
Topic: PWM to control a motor
Replies: 7
Views: 1453

Re: PWM to control a motor

That's been really helpful and kind of what I thought might be the case of multiple options. I'm going to go with the first option as it is the way that seems to fit well with tutorial.

I'll post to show how it goes!

Thanks guys.
by benderman
Tue Jan 20, 2015 11:29 am
Forum: Automation, sensing and robotics
Topic: PWM to control a motor
Replies: 7
Views: 1453

PWM to control a motor

Hi all, I have found various tutorials about how PWM works and I think I get it, so far so good. What I am unsure of where PWM output from the Pi needs to be connected? Using a L293D chip to control a motor should the PWM output be connected to the motor enable (pin 1) on the chip or should both con...
by benderman
Wed Jan 07, 2015 1:11 pm
Forum: Automation, sensing and robotics
Topic: New to robotics
Replies: 2
Views: 589

New to robotics

Hi Guys, I'm looking to build a basic robot powered by my B+ and I was wondering if someone could explain in simple terms the difference between motors and continuous rotation servos and the pros and cons of each please? I've been looking on the web and I'm still not clear what would be the best to ...
by benderman
Mon Jan 05, 2015 2:49 pm
Forum: Camera board
Topic: Camera not working
Replies: 5
Views: 888

Re: Camera not working

Thanks I'll try that tonight.
by benderman
Mon Jan 05, 2015 12:45 pm
Forum: Camera board
Topic: Camera not working
Replies: 5
Views: 888

Camera not working

Hi Guys, I have recently got the camera module to go with my B+ and when I try and take a picture like using the following command raspistill -o testcapture.jpg I get the red light on (stays on) and I get an unexpected callback message. I have googled it and tried: Checking the cable (both ends) Ame...
by benderman
Thu Dec 18, 2014 7:26 am
Forum: Beginners
Topic: New to Pi - monitor question
Replies: 6
Views: 939

Re: New to Pi - monitor question

Thanks for the help guys. I have a PC monitor that came with a PC a few years back. It has a VGA input and I have connected it via an HDMI - VGA converter that is a small black box with a short wire to the HDMI connector. It isn't independently powered though. I'll check out the links and try it out...
by benderman
Wed Dec 17, 2014 8:31 am
Forum: Beginners
Topic: New to Pi - monitor question
Replies: 6
Views: 939

New to Pi - monitor question

Hi Guys, I have recently got myself a B+ and have been enjoying using it but the monitor resolution is not good. I have googled what to do and tried changing the boot file but to no avail. When using the GUI, it doesn't recognise the monitor so I can't increase the resolution. I have seen several po...

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