I have to do a urine monitoring device using arduino for my school project. please help if you have a solution!
What ideas have you come up with? We assist, not do the project.
Show us you have put in some effort and we will help.
Weedpharma
shalzack:
please help if you have a solution!
You want us to send you samples?
What does monitoring even mean? Volume? Viscosity? Colour? Sugar? Banned drugs? Temperature?
JimboZA:
You want us to send you samples?
The opposite of taking the P. 
if this is a school project i can only assume its a volume measuring excersise.
Biosensors for any thing else are prohibitive.
weedpharma:
What ideas have you come up with? We assist, not do the project.Show us you have put in some effort and we will help.
Weedpharma
weedpharma:
What ideas have you come up with? We assist, not do the project.Show us you have put in some effort and we will help.
Weedpharma
I am looking into creating a device that would ring when urine or even any liquid is detected, using a moisture sensor connected to an arduino. but i am not sure how to use an arduino and how to work on the codes that would allow my idea to work. my device should be small and compact. my device is to help caregivers know when to change the diapers/pampers of their patient. it is suppose to make caregiving for urinary incontinent patients more effective.
One thing you can do is make sensors out of corrugated cardboard.
2 partially stripped wires can be inserted into holes ~1/2 inch apart.
Use this as a disposable sensor.
Single wall (none printed) would be sufficient.
Tape wires in place on the edge.
This is a good example of how giving a good description of the problem results in quick answers: that took 11 minutes after you explained what you were really up to.
Asking vaguely about a "urine monitoring device" cost you most of a day.
With disposable Pampers and similar, maybe the wires could just be stuck into the gel?
LarryD has circuit examples both with and without Arduino, here.
shalzack:
I have to do a urine monitoring device using arduino
Does it have to use an Arduino?
Do a search on "wee alert" or bed wetting alarm. There are LOTS out there for you to get some ideas from or even buy the sensor pad. You also (since this involves people) need to make sure you have addressed the safety issues where you have the case of someone on a wet pad that is grounded (or "hot" etc.). Battery power is the way most of them address that issue.
I would offer that urine has a high salinity content.
drive out to a ranch that horses or cows and uses an electric fence.
have a few beers and when you are ready to experiment, pee on the wire.
make sure you take notes.
I was able to gather all the data I needed a long time ago and in the decades between, lost my notes.
on a more topical post...
you can take two sections of wire screen, put them between layers of cloth, like shorts or some such. they would be electrically isolated, but any moisture would create a conductive path that could be measured with an analog input.
use a current limiting resistor and you would be fine.
read the value on an analog input.
As I see it, you have a problem associated with some level of human comfort involved. Your sensors must be conductive and yet, not involve any chance of harming the person discharging the urine...and the sensors are located, by necessity, in a sensitive part of the anatomy.
There are conductive fabrics available...(see here; http://www.newark.com/adafruit-industries/1168/conductive-fabric-silver/dp/66W8320?CMP=KNC-GUSA-GEN-SHOPPING-NEW-ADAFRUIT-)...I would think of a layer of conductive fabric, and a layer or two of non conductive cotton and another layer of conductive fabric...stitched carefully to avoid any electrical circuitry connection between the two conductive layers. A very soft, conductor, possibly like a head phone or ear bud conductor would be used to communicate between these two conductive layers and your Arduino. I would also be concerned with wired connections getting tangled in bedding or body movements…(Note: I would probably design this system around a Nano, and make it entirely “self contained in the diaper” or in a soft belt type contained arrangement to be wholly worn by the patient with wireless communication to the care giver. Such wireless battery operated systems are also very easy to hook-up to the Arduino but they will drive up the cost of the project…you may be expected as a student to devise a wired system with the recommendation for conversion to a wireless system as an improvement).
Your Arduino would be used to test the sensor- resistance between the two layers of conductive cloth - in a voltage divider circuit (two resistors sharing a common ground or voltage to ground source- see here; Arduino Playground - DirectMathVoltmeter). The idea is, your Arduino would be testing the circuit, say every second or so, for any change in the sensor resistance. As soon as any mineralized conductive liquid (urine) connects between the two fabrics, the Arduino will sense the immediate change in resistance and thus turn on an alarm, blinking light, small piezo buzzer or even call on a cell phone (also perhaps a later improvement)to alert the care giver there is a problem. There are inexpensive wireless transmitters and receivers that can give your project a dedicated wireless link within a limited in-house range.
I leave the details and study on how exactly to do all this to you. In fact, you will find the programming and the connections are exceptionally beginner level simple. I think the hardest part would be sewing up the cloth urine sensor. Good luck.