Go to advanced search

by ihightower
Sun Jan 04, 2015 7:05 am
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

Just to let you know that I've taken your critique to heart, and have actually now made many changes to the pictorial buyers guide, and will still make more to come, hope you like what I did. Thank you for your update in that page... This is my final comment... and for your info I only started this...
by ihightower
Sat Jan 03, 2015 6:53 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

The pictorial buying guide does recommend an convertor like this http://www.ebay.co.uk/itm/HDMI-to-VGA-RGB-Video-Converter-Box-Adapter-Audio-Cable-Lead-HDTV-XBOX360-1080P-/400823426911 Thank you and understand.. my comment is just the negativity that surrounds this paragraph... which really could b...
by ihightower
Sat Jan 03, 2015 6:44 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

My response would be that there is no such cable that will work, but there are converters available (now) for X price. Correct terminology in some cases is not being pedantic if it prevents someone making a mistake. I agree with using correct terminology by saying "converter"... but the page should...
by ihightower
Sat Jan 03, 2015 6:24 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

The point of the buyers guide is that cheap ($1 to $2) cables do not work, but you need a more expensive converter. Nothing has changed in that, except that there seems to be a price war and converters that once cost at least $20, now cost far less. Thanks Pluggy for your interesting insight, but I...
by ihightower
Sat Jan 03, 2015 6:07 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

and your point is? my point is there is converters out there readily available at a cheap price... unlike the statement.. given in Pictorial Buyers Guide page The point is really not about Indian rupees or US or Europe here... the point is only to do with the original poster of this thread looking ...
by ihightower
Sat Jan 03, 2015 6:03 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

So... now I hope you know where the $8 and $12 converters come from. Oh, I read those links but the price there is in roepiah for the local Indian market I suppose, and is not available here. Don't even know the conversion from roepiah to $, so how do I know the price in $? Precisely I have done th...
by ihightower
Sat Jan 03, 2015 5:51 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

If your monitor only has a VGA Connector, you are NOT out of luck... It is NOW POSSIBLE (unlike the old days)... to buy a cheap HDMI->VGA Converter (sample pic or link to crazypi or any other page of your choice) No that was always possible! even on a B you could use such a converter, if you used a...
by ihightower
Sat Jan 03, 2015 5:42 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

Please rewrite the section according how you think it should read then and I will consider it. to me it reads quite concise, and not outdated in any way, but then English (UK/US) is NOT my first language Dutch is. I have not seen an converter box (no I won't confuse the matter further by calling it...
by ihightower
Sat Jan 03, 2015 5:25 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

Really all was completely explained in the Pictorial Buyers Guide Sticky, and even the WiKi long before the OP asked its first question. The issue of cable versus adapter has come up enough times to become very tiresome and old. So no, you were not the first to make that mistake. Thank you.. and I ...
by ihightower
Sat Jan 03, 2015 5:16 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: HDMI to VGA cable

Thank you all for a great explanation from all. -- I just would like to summarize from the beginner's point of view of this whole issue... It is all nice that.. you guys are being so "precise" to differentiate distinctly between "a cable" and "a converter". For a beginner... he doesn't care between ...
by ihightower
Sat Jan 03, 2015 2:35 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: cable,

Hi.. if what you say above is TRUE... then what about this product here.. and all the satisfied customers... Are they lying?? Is the company lying?? Did you look at the date on that posting? A lot has changed in nearly three years. HDMI to VGA converters have dropped in price and complexity conside...
by ihightower
Sat Jan 03, 2015 1:37 pm
Forum: General discussion
Topic: HDMI to VGA cable
Replies: 42
Views: 16284

Re: cable,

I hope you started with reading this? http://elinux.org/RPi_Hardware_Basic_Setup#Display If so you would have read that the answer is nowhere! HDMI to VGA "cables" do not work with the RPI, there are no analog signals on the RPI's HDMI connector. There are some HDMI to VGA adapters, but these need ...
by ihightower
Fri Dec 26, 2014 11:26 am
Forum: Beginners
Topic: GPIO PIN goes High when VNC connection is made. (Strange!!!)
Replies: 0
Views: 360

GPIO PIN goes High when VNC connection is made. (Strange!!!)

Hi, I have a headless... Pi... connected to USB Power.. I have a PIR Motion Sensor connected to PIR PIN 40 (board layout).. and my code monitors for all gpio pins if anyone gets HIGH. Earlier.. PIR on PIN40 was giving false alarms.. but now the false alarms by the PIR is quite stable now... that in ...
by ihightower
Fri Dec 19, 2014 5:11 pm
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

Re: GPIO Pin Input - Driving Me Crazy with the PIR

I was a beginner first time trying out Raspberry Pi.. and ordered TCobbler, GPIO Cable and PIR Sensor. 1) Issue with RPi.GPIO version 0.5.6 When I was testing motion detection with PIR Sensor... on my RPi B+, the PINs were not recognized correctly from PIN 27 to 40 (board numbering) using RPi.GPIO V...
by ihightower
Sat Dec 13, 2014 4:40 pm
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

Re: GPIO Pin Input - Driving Me Crazy with the PIR

@pluggy Thank you for a comprehensive reply. I will have to understand your code as I am not strong in bash... and your explanation text to see what I can find in my RaspPi. Let me see... that will be another 2 hours + to understand, implement and to know what I want. I will get back to you if I ha...
by ihightower
Sat Dec 13, 2014 2:52 pm
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

Re: GPIO Pin Input - Driving Me Crazy with the PIR

OK.. I have done extensive testing today to find the root cause of the problem... and here are the results... (almost 3 hours was put in to meticulously study where the problem comes from)... For one thing, I can trust this line of code works... GPIO.setup(PIR_PIN, GPIO.IN, pull_up_down = GPIO.PUD_D...
by ihightower
Sat Dec 13, 2014 1:08 pm
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

Re: GPIO Pin Input - Driving Me Crazy with the PIR

BTW I have already got frustrated with the situation of 0.5.6 where Pin 27 to 40 were not even recognized.. and yet.. Python RPi.GPIO version page doesn't even mention this issue. The pins were recognised, but only if you used BCM mode, which is more or less the standard method. Issues were raised ...
by ihightower
Sat Dec 13, 2014 11:55 am
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

Re: GPIO Pin Input - Driving Me Crazy with the PIR

Hi... Is the indentation error on the line: x = random.randrange(0,20) .. I have now tabbed it and keep it inside the "if" I don't know why the code worked anyway earlier.. ? -- anyway to the important point... I tried PIN 29... with nothing connected... it is still HIGH! Thank you for any further i...
by ihightower
Sat Dec 13, 2014 5:56 am
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

Re: GPIO Pin Input - Driving Me Crazy with the PIR

hi mahjongg, thanks for your reply... and i sort of get your reply about pullup pulldown... and I started reading about it... and used the following webpage as my guide... http://raspi.tv/2013/rpi-gpio-basics-6-using-inputs-and-outputs-together-with-rpi-gpio-pull-ups-and-pull-downs where he discussu...
by ihightower
Fri Dec 12, 2014 8:12 pm
Forum: Beginners
Topic: GPIO Pin Input - Driving Me Crazy with the PIR
Replies: 16
Views: 12136

GPIO Pin Input - Driving Me Crazy with the PIR

Update: This item is resolved on 18DEC2014. Please see my reply in the end that summarizes the whole issue with final sample code for you to test your own GPIO Pins for LOWs and HIGHs Hi, I have Raspberry Pi B+.. and I am a beginner... and I have upgraded to RPi.GPIO 0.5.8 (as 0.5.6 has got some se...
by ihightower
Wed Dec 03, 2014 2:19 pm
Forum: Automation, sensing and robotics
Topic: PIR Motion Sensor (Can I Use this?)
Replies: 5
Views: 1734

Re: PIR Motion Sensor (Can I Use this?)

Thanks again... So, for the PIR Sensor to work with Pi... the only thing that matters.. is if the output is going to 3.3V or 5V. If 3.3V no resistor required. If 5V resistor required.... and it will still work as normally same as 3.3V case. Other than there really are no other show stoppers or incom...
by ihightower
Wed Dec 03, 2014 1:46 pm
Forum: Automation, sensing and robotics
Topic: PIR Motion Sensor (Can I Use this?)
Replies: 5
Views: 1734

Re: PIR Motion Sensor (Can I Use this?)

Thanks Joan for your reply.. For the Item 3 in my posting... Here is the datasheet form their website for the PIR Sensor In Page 1.. you can see the Spec... and advise... I have no idea what to make out of it. http://www.thaieasyelec.net/archives/Manual/KC7783R.pdf == For Item 2, I am checking with ...
by ihightower
Wed Dec 03, 2014 11:03 am
Forum: Automation, sensing and robotics
Topic: PIR Motion Sensor (Can I Use this?)
Replies: 5
Views: 1734

PIR Motion Sensor (Can I Use this?)

Hi I am totally new and yet to buy the RPi B+ and this Sensor. Do I need resistors? This is the RPi kit.. I am planning to buy... which has everything except Motion Sensor.. http://www.thaieasyelec.com/promo/raspberry-pi-combo-set-detail.html Ok Here are the key questions: 1) Do I need any more thin...

Go to advanced search