Nutrition facts with adruino for juice project

Hi

I have a project but i haven't bought arduino yet because i want to be specific about the items i need i don't live in the us so if i wan't to ship those kind of items they would take approximately 2 weeks to arrive.

My project is i want to connect a sensor with arduino that can give me calories + sugar + Carbs + ph of any juice or semi juice like honey and i wan't to check if it has some additives .
my scale of Measure is between 50 ml to 100 ml (according to accuracy)

my main goal here is to study juice and not food

and then i wan't a to make a program on android and connect it with arduino through bluetooth to the show the results

i am a programmer( C# ) and i am studying electrical engineering in college

i understand this project might be hard to begin with but if you can name me the items that i need and the softwares that i need it would be very helpful ,I have an idea that i think would change the city i live in the people here need this kind of device for too many reasons and i need to make this device no matter how much time it takes or how many times i fail,Please be patient with me i am still just a beginner

thank you.

Diaa:
My project is i want to connect a sensor with arduino that can give me calories + sugar + Carbs + ph of any juice or semi juice like honey and i wan't to check if it has some additives .

Hi,

Can you please post links to these sensors? I know there are pH sensors, but I have never heard of a sensor that can measure calories, or distinguish if those calories come from carbs or non-carbs, or between calories from non-sugar-carbs. I imagine you would need a whole laboratory of equipment to do that.

Paul

PaulRB:
Hi,

Can you please post links to these sensors? I know there are pH sensors, but I have never heard of a sensor that can measure calories, or distinguish if those calories come from carbs or non-carbs, or between calories from non-sugar-carbs. I imagine you would need a whole laboratory of equipment to do that.

Paul

Actually i don't really know any but even if they don't exist i need the most information i can get from liquids

Find the sensors first. That's google research.

Ph sensors are common. specific gravity probably is available, since it's used in a lot of processes (beer production, for example). And one could rig up a way to measure conductivity.

But those three data points are not enough, it doesn't sound like.

You need to research and locate the sensors you want to use - that will provide some guidance as to what arduino to use and whether the project is practical.

The only way I know to do calories is to dry the sample and then combust it in a calorimeter, which is a large (due to the need for an incredibly large amount of insulation), expensive piece of laboratory equipment.

DrAzzy:
Find the sensors first. That's google research.

Ph sensors are common. specific gravity probably is available, since it's used in a lot of processes (beer production, for example). And one could rig up a way to measure conductivity.

But those three data points are not enough, it doesn't sound like.

You need to research and locate the sensors you want to use - that will provide some guidance as to what arduino to use and whether the project is practical.

The only way I know to do calories is to dry the sample and then combust it in a calorimeter, which is a large (due to the need for an incredibly large amount of insulation), expensive piece of laboratory equipment.

Ok ,So i found out that its not as easy as i thought
so i want to start small at first

First i need to separate the projects so this is the first project
i need to measure the pH level of liquids , And i need to show the level on an android device by bluetooth

i use C# so it would be helpful if i can keep using it with arduino
i didn't choose the software to make android devices yet i use a game engine called Unity i made few games + Apps using it , I used visual studio a lot in the past so i have a good background about it

suggest me anything that is in C# and compatible with arduino,If it doesn't exist then C should be ok

so what should i get to start with the project?

Here is a ph sensor kit.

What else could you measure easily?

Temperature: easy with ds18b20 sensors in stainless steel probes.

Colour/opacity: maybe by contructing a sensor from an ldr and an rgb led, arranged to shine through a sample of the liquid in a test tube. You would need to exclude ambient light.

As delta_G says, keep it simple for now. I suggest an lcd character display for your first attempt.