[ELECTRON] Commissioning Help!!

[Natalie Duncan]

Thanks so much Grant. I have the sensor currently working with the Arduino, but reaaaallly wanted to move towards analog. I had not though of a solenoid water valve for return!! thats a fantastic idea.  I would really appreciate programming help on the return (I will send you the current program, stringing together codes is not something I have done more than once) if I am restricted to Arduino. Thanks again.

Natalie


On 2013-12-18, at 10:22 PM, Grant Gibson wrote:

> Hi Natalie
> 
> Sorry to jump in to the middle of a conversation here, but just a few
> thoughts:
> 
> The pulse sensor you're planning to use is designed for Arduino, so basing
> the project around an Arduino board would probably be a good way to go.
> 
> If you're going down the Arduino route, you could build the whole thing
> quite easily without any 'real' electronics work - i.e. no raw components,
> no soldering, and just some plug in wiring.
> 
> My idea is to use a simple relay board - like the Sainsmart 2 channel relay
> which would act as a simple on off switch for other devices (which
> could be either
> 12V, mains voltage or whatever). Those other devices would be: a) a pump
> like you've already got planned, and; b) a solenoid water valve for the
> return.
> 
> Then the only work is programming the arduino. There will be freely
> available sketches to read signals from that pulse sensor, so you'd
> literally just be adding half a dozen lines to set the relay switches
> 'high' or 'low' as required.
> 
> Unfortunately work and family commitments mean I wouldn't have time to help
> hands on, but if you go down that route I'd be happy to help by email if
> that's useful.
> 
> Cheers
> Grant
> 
> 
> On Wednesday, December 18, 2013, Natalie Duncan <06duncan at gmail.com> wrote:
> 
>> Hi Gordon,
>> 
>> Here are the basic components Im looking for;
>> 
>> A pulse sensor that will read a forefinger pulse. I am currently using
>> this one ( http://pulsesensor.com/) , I could also build my own using an
>> IR and a receiver, or ty another pulse reading sensor with analog output.
>> If my own IR is made, residual light will probably be a concern.
>> 
>> The sensor will activate a submersible pump, preferably at 12v.  We are
>> not moving a substantial amount of fluid… probably about a pint.  ( I am
>> currently not using a submersible pump)
>> 
>> When a person places their finger on the sensor it will start the pump,
>> the pump will then prime and liquid will begin to flow along a tube about
>> 3-4 feet in length, velocity is not a concern as of now, the fluid will not
>> be drawn very high, perhaps about a foot out of the receptacle.
>> 
>> The fluid will continue to pump until the finger is removed. Once the
>> sensor recognizes that the finger is removed the pump will stop, but then
>> the tricky part is having all the liquid drawn back into the receptacle.
>> 
>> Separately a 24/rpm rocker will need to be fabricated to sit inside the
>> receptacle or outside of it to continually "rock" the liquid to prevent it
>> from coagulating but I could certainly do this on my own. My main concern
>> right now is getting the sensor working with the pump and the liquid
>> draining from the tube until the next pule activates it.
>> 
>> Hope this clarifies.
>> 
>> I would really appreciate working on this project with someone with a bit
>> more expertise than myself. All my electronics knowledge to this point is
>> self taught. So while I am capable of following a schematic I am not sure
>> how to devise my own circuits.
>> 
>> 
>> 
>> On 2013-12-18, at 9:47 PM, Gordon JC Pearce wrote:
>> 
>>> On Tue, Dec 17, 2013 at 09:37:17PM +0000, Natalie Duncan wrote:
>>>> Hey there,
>>>> 
>>>> i am looking for someone who would be interested in working on a
>> circuit with me (not completely solo) for compensation… I currently have
>> the majority of the piece working with Arduino but am very interested in
>> moving this to an analog form.
>>>> 
>>>> The piece will essentially be a pulse sensor activating a self priming
>> pump. However once the sensor is no longer activated all liquids remaining
>> in the "tube" will need to drain back into the original receptacle.
>>> 
>>> Have you got an idea of how the pump and valves will work?
>>> 
>>> What exactly do you mean by "pulse sensor"?
>>> 
>>> --
>>> Gordonjcp MM0YEQ
>>> 
>>> 
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