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31  Community / Gigs and Collaborations / Re: arduino garden or room on: July 20, 2014, 08:42:17 am
i was wonering if there is a place were you pay to get a program smiley-eek smiley-eek smiley-eek smiley-eek smiley-eek

Yes, and this is it.. what is your budget ?

Cheers Pete.
32  Community / Gigs and Collaborations / Re: London based developer interested in UK based commerical collaborations on: July 12, 2014, 07:10:22 am
Did this move anywhere.

I got no response from my PM.

Cheers Pete.
33  Community / Gigs and Collaborations / Re: Paid gig - want to make a wireless switch (up to 3x DPDT type)...wireless on: July 12, 2014, 07:08:33 am
Hi Joe,

I have sent you a PM with my contact details on it.

Cheers Pete.
34  Using Arduino / Project Guidance / Re: SPI programing on: July 04, 2014, 12:11:38 pm
Use any pin for chip_select... but pin 10 MUST be defined as output..

According to this:

http://www.seeedstudio.com/wiki/SD_Card_Shield_V3.0

MOSI (Master out slave in) is pin 11.  This is what I would call output.  Am I missing something?

Also where can I find a more detailed reference for the SPI.h library?

Bob

Correct the MOSI is an output as is the CLK the MISO is an input but as the other have said to get the chip to work in SPI mode you MUST have the default pin 10 set as an output. The SD card is SPI and if you use an external one the you can use any pin. aside from the MOSI,MISO and CLK pins. Remember however that you can only have ONE SS pin active at any time they are mutually exclusive.

The SPI register is basically a  shift register as you toggle the CLK is shift out from the high bit onto the MOSI and shifts into the low bit the level on the MISO.

Cheers Pete.
35  Using Arduino / Project Guidance / Re: Completely turn on and turn off arduino on specific date time on: July 04, 2014, 10:58:47 am
OK so try the 555 timer option but use it to cut power to the WHOLE setup not just the WIFI shield.

Cheers Pete.
36  Using Arduino / Project Guidance / Re: 2.4 GHZ RC car on: July 03, 2014, 02:37:41 am
ok so have you tested if the 3v3 pin is delivering 3v3 on battery power ?

and that the 5v rail is delivering 5v to the pot
37  Using Arduino / Project Guidance / Re: 2.4 GHZ RC car on: July 03, 2014, 02:31:09 am
Hmmm OK . so if you load the stock "blnk" sketch does that run on the battery or only with the cable plugged in.

and where is the TX drawing its power from ?
38  Using Arduino / Project Guidance / Re: 2.4 GHZ RC car on: July 03, 2014, 02:12:45 am
If it is working when you use the power from the USB port (I.E. plugged in to your computer) and not from an external source. It is suggesting that there is an issue with either the wiring or the power source. What voltage is the power source and how are you connecting it to the NANOs

If you can some get some pictures of the way it is wired up that would help.

Cheers Pete.
39  Using Arduino / Project Guidance / Re: Completely turn on and turn off arduino on specific date time on: July 02, 2014, 11:49:53 am
it could still be drawing it power through the SPI programming interface or drawing parasitic power from other lines
40  Using Arduino / Project Guidance / Re: need some advise on: July 02, 2014, 09:03:31 am
OK so firstly what do you want to send to the phone. Are you sending a SMS or do you want to send data and have an application on the phone read that and then do something with it.

Is you phone Apple 4S or newer, if so then you can go down the BLE route if it is another phone the perhaps classic Bluetooth pairing your phone to the umbrella may be the way to go.

Cheers Pete.
41  Using Arduino / Project Guidance / Re: Completely turn on and turn off arduino on specific date time on: July 02, 2014, 08:58:49 am
Bainesbunch & robtillaart & PeterH, you are almost agree on the approach of first turning the power to the WIFI shield off (with one transistor circuit switched or whatever) and then putting the Arduino into sleep mode (and later resume it from RTC or so).

I think you are overlooking the fact that even in sleep mode the standard Arduino boards have a considerable power consumption. If you want to drop the overall current draw to almost nothing you need to provide a way to disconnect power to the Arduino as well. Obviously, reconnecting it afterwards is the trick.

If you use a standalone Arduino or a clone designed for minimal power consumption then you don't have that problem and can leave the Arduino powered up in sleep mode.

Yes hence my suggestion of a 555 timer to cut the power to the Arduino and then after nnn time reconnect it. the timer being triggered by the Arduino. That way the only thing drawing power is the 555.

Cheers Pete.
42  Using Arduino / Project Guidance / Re: Completely turn on and turn off arduino on specific date time on: July 02, 2014, 08:04:14 am
First, thanks for your answers.

Bainesbunch & robtillaart & PeterH, you are almost agree on the approach of first turning the power to the WIFI shield off (with one transistor circuit switched or whatever) and then putting the Arduino into sleep mode (and later resume it from RTC or so).
I like this approach, but after checking the wifishield doc I am not completely sure which are the power pins of the wifi shield that I should bend to put wifishield under control of Arduino. Do you have info or experience about this?.

About controlling the hole thing, to cut all the power supply of the circuit (and recover it later) from one 555timer(???), hardware, circuit, switch, thing... completely independatnt to arduino, and then one timer that connect the power supply again, that is valid for me too.
So any help of where to buy or build this or some tutorial or link in this way would be also appreciated.

Thank you, Your responses are valid for me to start researching

OK so here is a reference to the 555 timer one-shot that you could use http://www.555-timer-circuits.com/monostable-555.html

As for the pin to bend on the WIFI card it is the one marked 5V

Cheers Pete.
43  Community / Gigs and Collaborations / Re: Gig and possible employment opportunity. on: June 30, 2014, 09:31:30 am
OK so perhaps i might fit the bill but i live in France. I do already have a client that I am currently working with in Canada however.

Take a Quick look at my website WWW.EmbeddedAT.com and decide if you think I may be a good fit.

I work with start-up companies and help to take POC through to production. I have a couple of Kick starter projects under my belt as well. The most recent being "The Barman"

I fly a quad-copter based on, naturally, the ardupilot flight controller.

I have built stabilization systems for clients needing to maintain antenna position and am currently working on a client developing a 20 point self leveling platform.

Feel free to drop me an email to Peter@EmbeddedAT.com if you want to have a chat about the project with me or grill me about my skills smiley

Cheers Pete.
44  Community / Gigs and Collaborations / Re: Gig and possible employment opportunity. on: June 30, 2014, 09:18:38 am
HI Rob,

Where in the world are you so we can tell if we are close or not smiley

Cheers Pete.
45  Community / Gigs and Collaborations / Re: Ardoino nano v3.0 connect to Android on: June 30, 2014, 04:50:01 am
That you think, I emphasize in CAPS , Is there any net rules at all? well No.

Well actually they are not fixed rules no,  just a well established etiquette of conduct for writing in blogs  and forums.

Something you perhaps might want to consider learning.

If you want to move this debate off topic i suggest that we find somewhere else to do it because, again , it is not good etiquette to hijack a thread for a personal rant.

Cheers Pete.
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