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16  Community / Gigs and Collaborations / Re: Gig for Hire: Bill Acceptor with a web page on: August 08, 2014, 09:37:11 am
what are you willing to pay ?

Your requirments are not very explicit. I can hep you with this perhaps but i would need more information.

Cheers Pete.
17  Community / Gigs and Collaborations / Re: Dashboard project: batery, low power, PCB design , BLE, Android - budget : $1~3K on: August 05, 2014, 03:54:51 am
Hello FG .. Email sent.

Cheers Pete.
18  Community / Gigs and Collaborations / Re: Tuition help with arduino projects in Berkshire/Surrey UK on: August 03, 2014, 01:50:07 pm
Hello Cameron,

I am from the UK but i now live in France. I have quite a few people that i help mentor through project building. I will be willing to help you but unfortunately will not be able to come over to the UK to fix thinks in person.

Get your Dad to send me a PM since this is a public forum and I am sure he is monitoring and censoring the feedback.

Cheers Pete.
19  Community / Gigs and Collaborations / Re: help! urgent on: August 03, 2014, 01:44:11 pm
Sugar cubes is the way to go.

But think out of the box a little and away from robot arms to pick and place and think of a PEZ dispenser.

A stack of cubes spring loaded and pushed out one at a time like the sweet dispenser or even gravity fed in a downward direction to allow for a bigger stack.. A simple broken beam detector will tell you when you have nnn cubes left and need to refill the hopper.

Cheers Pete.
20  Community / Gigs and Collaborations / Re: Arduino Novice; Writing Hardware Drivers & Sample Code; Initial Guidance Needed on: August 03, 2014, 01:34:40 pm
Since this is going to be a professional and commercial product then a proven coding template methodology might be your first port of call.

When working between platforms one would normally abstract the code.

You need to be thinking about HALs (Hardware Abstraction Layers) that communicate with the chosen hardware platform exposing a set of methods though a binary interface that can be consumed by the other layers.

This way your other layers dont know or care about what hardware they are running on and you can have a considerable amount of platform independent code shared between the platforms.

If you want to expand on this then feel free to PM me.

Cheers Pete.
21  Community / Gigs and Collaborations / Re: need some one to write some code for me on: August 03, 2014, 01:25:28 pm
Go on then I'll have a go.

PM me for contact details

Cheers Pete.
22  Community / Gigs and Collaborations / Re: time stamp on: July 24, 2014, 03:54:41 am
yes but what is the problem you are having ?
23  Using Arduino / Project Guidance / Re: Interfacing with rope leak detector cable? on: July 22, 2014, 12:08:22 pm
Bainesbunch - it looks like it's actually open, not zero ohms, regardless of whether it's under water or dried out.

I suspect that there is subtle change in resistance or it would not work this is also supported by the fact that you can just add more of the sensor strips end to end according to the manual. Are you using a DMM if so set the resistance range to the mega and try again. in the very high range you should be able to see a change just be putting your fingers across the sensor tracks.

Cheers Pete.
24  Using Arduino / Project Guidance / Re: Beginner trying to connect an Arduino board to a CAN bus... on: July 21, 2014, 01:51:27 pm
That CAN bus interface card will do the job for you . it has mounts for D9 connectors on the PCB. You can solder these your self and then go and get a D9 to OBDII interface cable from somewhere like protopic. there is a standard that is applied to this cable and so most of the reputable ones will work fine.

This is a good example

You can (no pun intended) then install the CAN libraries and talk to the CAN bus.

I have several commercial products out in the wild that use the Microchip chip-set that is used in this shield. If you need a more in depth explanation let me know.

Cheers Pete.
25  Using Arduino / Project Guidance / Re: Interfacing with rope leak detector cable? on: July 21, 2014, 08:06:20 am
well the manual does not seem to indicate that there is an existing way to read any signal from the device without hacking it about a bit.

First thing i would do is open it up and see what is there to work with.

Are you sure it is reading ZERO ohms and not open circuit   ?

Cheers Pete.
26  Using Arduino / Project Guidance / Re: cmath library error uploading to arduino on: July 21, 2014, 07:03:34 am
If I use the computer the code was originally written on everything works fine. But I am getting the following error trying to upload my program to Arduino using a new computer:

 ...\Arduino\libraries\T_Motor\T_Motor.cpp:13:17: fatal error: cmath: No such file or directory
 #include <cmath>

 I keep getting this error when I use the new computer. I thought that cmath was a common C++ library.

should that be  #include <cmath.h>

Note the "h"

Cheers pete
27  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.
28  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.
29  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.
30  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:

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?


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.
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