come up with ultra cheap tagging system for a sorting job


I am working on a small college project in which I have to sort objects of different materials (glass, plastic, metal, and paper) into different bins in an automatic fashion.

I was thinking of using some sort of passive tagging system that is very cheap and doesn't need to store any data except that it can be categorized into 4 different types, because we are trying to sort 4 different types of materials. For example, we can associate each tag to one particular material type ( tag#1=glass, tag#2=plastic, tag#3=metal, and tag#4=paper) then if our object is made of the glass we stick tag#1 on it in which later can be detected by a reader and can be directed into glass bin.

I was thinking of using some sort of ultra cheap DIY radio tags in order to be used for tagging each object and then read those tags using a reader and then sort them into different bins.

I need a expert who can guide me through this sorting project who can give me advice and provide me with a feasible tagging solution that is flexible, ultra low cost and is commercially available since I am trying to build this system for my final presentation. I am planning to be able to buy the necessary equipment and eventually build it using an arduino.

Initially I was thinking of passive RFID tags but I am not sure if it is viable option or not, since my target cost for each tag is only few cents (I want each tag to cost less than 5 cents). Is it possible to make home-made RFID tag without any IC? I know there are chipless RFID tags but they are not commercially available for purchase right now, thus I cannot use them.

Or once somebody told me that I can make 4 different LC tank circuits that can oscillate at 4 different frequencies, therefore I can make a system in which oscillating frequency can be detected by some sort of reader. in this way I can print one type of LC tank (that correspond to certain frequency) on my object and detect which object is what. I am not sure if this is even possible since it was my first time hearing about LC circuits.

I am looking for an expert who has a low cost and bright idea. I might even end up outsourcing the implementation and building the prototype as well.


Compétences : Arduino, Génie Électrique, Electronique, Ingénierie des Télécommunications

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Concernant l'employeur :
( 2 commentaires ) Canada

N° du projet : #8453132

9 freelance font une offre moyenne de $49 pour ce travail


ACTUAL BIDDER! NOT A SUBCONTRACTOR!!! Hello, i have a PhD in Mechatronics and ample experience with Arduino boards, as well as microcontrollers. I have most of the hardware needed to get this started and have worke Plus

35 $ USD en 1 jour
(9 Commentaires)

Hello. I can provide consultations, example of circuit and simple program code for Arduino microprocessor. My hourly rate is 10$/hour and it's very low rate for such job. 2-3 hours is enough for demonstration of m Plus

30 $ USD en 0 jours
(12 Commentaires)

I have 5 years of software development. I have worked on different novel ideas. I can help you for this project as well. Pleases see my profile and reviews as well. Thanks :)

100 $ USD en 3 jours
(3 Commentaires)

I am an Engineer and I like to hack using Arduino. I did my thesis in traffic light simmulation. I think I have a quick and dirty solution to your problem. I won't use RFID tags. My "tags" would actually cost you $ Plus

60 $ USD en 2 jours
(0 Commentaires)

A proposal has not yet been provided

45 $ USD en 2 jours
(0 Commentaires)

Hi, I'm an Electronic Engineer form Sri Lanka. I currently work on embedded system design from spec to product in collaboration with a USA based company and your requirement seems the same. I'm sure that I can Plus

100 $ USD en 5 jours
(0 Commentaires)

Hello, the cheapest solution is to use small sized self-printed 2D-barcode (QR-code) paper labels or stickers. There is also a lot ready software and libraries to recognize it using any kind of cheap video camera, s Plus

25 $ USD en 0 jours
(0 Commentaires)

Hello! I am project engineer an university and I am dealing with rfid. I got the idea of your proj and I am sure we can work it out!

25 $ USD en 1 jour
(0 Commentaires)

Hi friend , lets get to the point , if you are looking for non contact tags i can get you a system that consist of 2 parts 1- receiver circuit about 2.52 $ 2- tags about 0.4 $ each if you can work with wire co Plus

20 $ USD en 2 jours
(0 Commentaires)