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coin changer mobile

$250-750 USD

Closed
Posted over 6 years ago

$250-750 USD

Paid on delivery
his is the smart coin based mobile charging system that charges your mobile for particular amount of time on inserting a coin. The system is to be used by shop owners, public places like railway stations to provide mobile charging facility. So the system consists of a coin recognition module that recognizes valid coins and then signals the microcontroller for further action. If a valid coin is found it signals the microcontroller and microcontroller then starts the mobile charging mechanism providing a 5V supply through a power supply section to the mobile phone, now system also needs to monitor the amount of charging to be provided. So the microcontroller starts a reverse countdown timer to display the charging time for that mobile phone. Now if the user inserts another coin in that time, the microcontroller adds the time to currently remaining charging time and starts the reverse countdown. So the system can be used for smart mobile charging at public places.
Project ID: 15973482

About the project

19 proposals
Remote project
Active 6 yrs ago

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19 freelancers are bidding on average $526 USD for this job
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I am embedded system electronics engineer and have designed vending machine which operated on coin cell. Please consider sending me a message so that we can discuss further Relevant Skills and Experience Electronics, Embedded System, Microcontroller, Proposed Milestones $500 USD - proposed milestone
$500 USD in 20 days
5.0 (18 reviews)
6.6
6.6
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Hi there , I have got all needed for building this project. I have little space here to explain. please send me a private chat message. Relevant Skills and Experience 18years Proposed Milestones $777 USD - 1
$777 USD in 10 days
4.7 (25 reviews)
6.7
6.7
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Hi, I can do your project on Arduino microcontroller and coin validator. Please specify what number of charging output you want. Relevant Skills and Experience USB charging Li-Ion Microcontroller Coin validator Proposed Milestones $600 USD - Project price
$600 USD in 30 days
5.0 (18 reviews)
5.4
5.4
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Let's discuss more. Relevant Skills and Experience Let's discuss on pm. Proposed Milestones $833 USD - Full job price.
$833 USD in 20 days
5.0 (1 review)
3.8
3.8
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Hello I already have expirience with coin validators, coin comparators and so on. I have microcontroller expertise too. I coud design all electronic for you so you coud build all by yourself. Relevant Skills and Experience 5 years in custom electronic device design expirience Proposed Milestones $555 USD - for main electronic and firmware design
$555 USD in 10 days
4.8 (12 reviews)
3.7
3.7
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I have briefly read the description on app development, and I can deliver as per the requirements however I need us to discuss for more clarity on the details, deadline and budget as well Relevant Skills and Experience web Proposed Milestones $500 USD - 1
$500 USD in 4 days
3.6 (3 reviews)
4.3
4.3
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السلام عليكم بعد التحية Hello nct2004, We have gone through the details you have provided for "coin changer mobile" and would be pleased to work on this with you to deliver the results that you have expected Relevant Skills and Experience I have 10+ years of experience in Android, Arduino, Electronics, Microcontroller, Mobile App Development I can do this within your budget too $250 - $750 USD Let's have chat so i can explain you in deep. Thank you, Regards, Mmadi, Flowgica Technologies. مع الشكر والحية
$525 USD in 12 days
5.0 (1 review)
2.4
2.4
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Hi Sir !!!! This is Nithish. i have done this project and also written a project report on this . i can help you sir . please text me once so that i can explain my experince with the project Relevant Skills and Experience ardino Proposed Milestones $277 USD - project
$277 USD in 10 days
4.2 (1 review)
1.1
1.1
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I've already developed custom crypto coin and exchanger for most of the cryptocurrency. Demo available, message me. HIGHLY interested with your project. I'm ready to start right now. My completion rate is always 100% and I STRICTLY BITE WHICH I CAN CHEW. Knock me please,
$300 USD in 7 days
5.0 (6 reviews)
0.0
0.0
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A proposal has not yet been provided
$555 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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Hi, I can handle your project. Relevant Skills and Experience more then 5 year experience in Electronics R&D field. Proposed Milestones $50 USD - Project Specification Finalization and Architecture Of System(Module Base) $100 USD - Hardware $100 USD - Software Architecture $100 USD - Basic Interfacing of hardware and Software $94 USD - complete System Handover
$444 USD in 15 days
0.0 (0 reviews)
0.0
0.0
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A design for the Prepaid charging station will be done in accordance with your requirements. the prototype will utilize a micro-controller, a coin selector module and power monitoring circuitry. Relevant Skills and Experience I'm an electrical engineer and experienced in using and designing micro-controller based systems. I currently have the required equipment at hand, thus, you won't have to wait to see results. Proposed Milestones $50 USD - Initial design sketch and proposed materials of the prototype are agreed on $150 USD - the prototype accepts a coin and starts the charging for an amount of time. $150 USD - a simple LCD 16x2 is added to show the time left for charging and to guide the user $50 USD - putting the prototype together and showing it functioning $100 USD - delivering a bill of materials, circuit diagrams, microcontoller code, user instructions .... Additional Services Offered $100 USD - a 3D model of the design can be done upon your request, showing the placement of each piece $100 USD - PCB circuit design for the electronics can be done upon your request I will deliver a functioning prototype
$500 USD in 10 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of OMAN
muscat, Oman
5.0
1
Payment method verified
Member since Dec 3, 2017

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