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1  Community / Gigs and Collaborations / Re: Sensitive Piano - 88 keys Bluetooth-MIDI. Seeking funds. on: August 28, 2014, 03:58:08 pm
a Hall effect sensor Ratiometric, you can measure the speed at which the key is struck, "sensitive"

really .. are you planning on measuring the rate of change of the input signal to calculate the velocity.

In the case of a polyphonic keyboard you would need to be doing that for as many keys as you where supporting

Ratiometric simply means that the OP of the device is directly proportional to the input. so the higher the Gauss the higher the OP voltage.

I am interested in how you are going to achieve this with the MUX and the Arduino. It sounds like a challenge .. and i love a challenge smiley
2  Community / Gigs and Collaborations / Re: Sensitive Piano - 88 keys Bluetooth-MIDI. Seeking funds. on: August 26, 2014, 02:33:10 pm
Funding aside on this project most modern keyboards have weight (Velocity) and after-touch on the keys so that you can tell how hard they where hit and then adjust the pressure on the key after it is struck to add expression to the playing.

You are only going to be able to measure if a key has been hit with the hall effect switches.

Cheers Pete.
3  Community / Gigs and Collaborations / Re: help! urgent on: August 25, 2014, 03:00:56 pm
Hello Rebeca,

Just stepping back into this to see how you got on.

If you got it to work would you like to share it with us.

Cheers Pete.
4  Community / Gigs and Collaborations / Re: Arduino Enginner Wanted for on going projects on: August 25, 2014, 02:54:59 pm
Hello Gary, I sent you an email but have not had any reply.

Does this mean .....

  • You don't need the help anymore
  • My skills are not what you  are looking for
  • You did not get my email

Cheers Pete.
5  Community / Gigs and Collaborations / Re: Arduino 2 12V motors and one 5V servo - Help needed on: August 25, 2014, 02:48:06 pm
OK so I read this a few times and am not sure i understand what it is you are asking for here.

You have listed the doubts and where you feel the system may not perform as you want it to but have not really said why you seeking help here.

Cheers Pete.

6  Community / Gigs and Collaborations / Re: Paid development project on: August 25, 2014, 02:44:13 pm
There are a lot of references to this HID device and how to use it with the Arduino. There is even a library if you look hard enough. IMUs are also well documented with reference to the Arduino. Gluing it all together is not that complicated. However as you have said .. You dont have the time and are prepared to pay someone to do it for you.

I have sent you an Email with my details.

Cheers Pete.
7  Community / Gigs and Collaborations / Re: {paid} Battle tank controller finishing on: August 18, 2014, 03:31:20 pm
hello Everso,

I believe that I can help you with this project.

Please take a quick loot at my website where you can see some of my current and past projects. If you think that I am a good match for your requirments please drop me an email to or a PM here in the forum

Cheers Pete.
8  Community / Gigs and Collaborations / Re: Arduino Novice; Writing Hardware Drivers & Sample Code; Initial Guidance Needed on: August 16, 2014, 02:43:44 pm
The product is the hardware. When the product is released for sale, the code will be provided to all with no conditions in order to assist with sales. The secrecy is only during the development time as it would be very easy for others to copy the design. It is a low cost, low profit product and not worth the cost of a patent and the expenses of defending against infringement. Our hopes are to get it established as the original developer, with the best support and that copies would not be as attractive. We simply want a head start on those inevitable copies.

So do you want to pay for help or not ?

Personal I dont care what you do with code once you have paid for it.

PM me if you want to take this past the "talking about it" to "actually doing something" stage.

You can check out my credentials and abilities at

Cheers Pete.
9  Community / Gigs and Collaborations / Re: In over my head - I may need to pay someone (here?!) to help... on: August 12, 2014, 05:19:02 am
Hello Jon,

OK so I get a lot of work from Freelancer and the system is set up to guard both parties. You only pay the milestone when you have the work for that milestone in you hands and have tested it to your satisfaction.

I also offer for my client to pay me through PayPal. This gives you a period to recover your money also should I not deliver what I have specified that I would.

I can help you with this problem, your requirement and  budget needs to be discussed and also your timescale. I live in France but moved her from the UK 9 years ago.

Take a look at me website and if you think that i can help you with this or just want to have a chat about your options please drop me an email to

Cheers Pete.
10  Community / Gigs and Collaborations / Re: Commissioning a project on: August 11, 2014, 03:44:55 pm
Hello Andy,

I am not from the UK either but I used to live there before i moved to live in France. I can offer the sort of expertise and advise that you are looking for.

Please take a look at my website to see the sort of projects that I normally get involved in. If you think that I am a good match for your requirments or just want a chat about your options please drop me an email to

Cheers Pete.

11  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.
12  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.
13  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.
14  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.
15  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.
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