From Arduino to Final Product

Mar 28, 2013 13 Replies

I work with software for some years, but I'm completely noob on electronics. For my FYP though, I will have to build a device that looks like a watch, containing a GSR sensor (Galvanic Skin Response) and a Bluetooth transmitter to send the sensor data to another device.



I found this option

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but the cost is $ 2000.00 the piece.



The prototype can be made with Arduino and a Bluetooth shield, but once it's prototyped, I would like to transform it into a final product, using another micro controller like ARM or PIC. But the first question is: what will replace the Bluetooth shield?



The next question is: what I'll have to build and what I'll have to buy (eg. micro controller)?



Thanks for the help!



Regards, Guilherme


containing a GSR sensor (Galvanic Skin Response) and a Bluetooth transmitter to send the sensor data to another device.

2000.00 the piece.

prototyped, I would like to transform it into a final product, using another micro controller like ARM or PIC. But the first question is: what will replace the Bluetooth shield?

micro controller)?

Atmel Raven? The dev kit works nicely. We designed a smart power strip (with metering and switching per outlet) without much hassle.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Guilherme Utrabo wrote in news: snipped-for-privacy@googlegroups.com:

I saw a very nice circuit from NASA years ago, which very reliable and very low power transmitted a number of temperatures from an animal to a reciever outside a cage. The temperature was encoded in the "OFF" time of the transmittor, and the "ON" time of the transmittor was very short, and seperated the temperatures from each other. So make a oneshot with the skin voltage setting its time,~.1 to 1. sec, and a 20 micro second pulse, to tranmit a HF burst, something like 100MHZ,which can be very reliabley detected. The receiving computer needs only to measure the time. This can easely be extended to a multychannel system.

containing a GSR sensor (Galvanic Skin Response) and a Bluetooth transmitter to send the sensor data to another device.

2000.00 the piece.

prototyped, I would like to transform it into a final product, using another micro controller like ARM or PIC. But the first question is: what will replace the Bluetooth shield?

micro controller)?

Would one of these make it easier:

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John,

Do you mean this one? If not, could you send the link?

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ics.

, containing a GSR sensor (Galvanic Skin Response) and a Bluetooth transmit ter to send the sensor data to another device.

2000.00 the piece.

it's prototyped, I would like to transform it into a final product, using a nother micro controller like ARM or PIC. But the first question is: what wi ll replace the Bluetooth shield?

(eg. micro controller)?

Dennis,

Is is possible to > >

nics.

h, containing a GSR sensor (Galvanic Skin Response) and a Bluetooth transmi tter to send the sensor data to another device.

$ 2000.00 the piece.

it's prototyped, I would like to transform it into a final product, using another micro controller like ARM or PIC. But the first question is: what w ill replace the Bluetooth shield?

(eg. micro controller)?

One problem of this approach is that the sensor would work better below the fist, where it is easier to measure heart rate and there is less hair, like this:

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Here's the box we did. We built a bunch of these for a startup, for testing the concepts, with the intent to seriously productize it later. The box worked but the company didn't.

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We used the Raven dev board in the prototypes. It has digital i/os, ADC inputs, LCD, Bluetooth, and comes with working starter code.

John

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

Oh, that's Zigbee, and you want Bluetooth.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

ng the

d but

We have a similar idea, but probably just one outlet with plug-in adapter. They want multiple plugs all over the house anyway, so, multiple oulets at one place doesn't make much sense. Cost is the issue. It has to be less than $5 BOM.

nputs,

We use the Microchip Raven (PIC32MX/MRF24J40), but the RF circuit is tough to manufacture. Out of 10 prototype boards, 5 doesn't work with RF.

To OP: For watch size, you almost have to do direct die-bonding. Even QFN40 (MRF24J40) or QFN32(ATF86RF) are too big, not to mension the microcontroller and balun circuit.

the

but

inputs,

A bigger problem is that Galvanic Skin Response is mostly silly.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

--- Typical Larkinese attempt at self-aggrandisement by diss.

You posit with pretence to authority - as if your conjecture is fact - without issuing any proof that your conjecture is factual or that you _are_ an authority.

-- JF

I never knew that you were a Scientologist.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

You didn't? Stay tuned, he's just getting started!

Jamie

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