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usb kart okuyucu eimza ile pdf ,doc,xlsx,xls,csv ve html dosya imzalayacak ve imza doğrulayacak asp.net MVC projesine java applete veya .net projesi

5-16 yaş arası çocuklar için geliştirmekte olduğumuz akıllı lego setimiz kullanıcılar tarafınd...kutucukları içeren) başla komutunu sürükleyip senaryo sayfasına bırakır, onu takiben hemen başla komutunun altına motor kutucuğunu menüden sürükleyip-bırakır ve içerisine süre (10dk) ve yön (sağ) bilgilerini girer. Daha sonra tekrar motor kutucuğunu sürükleyip bırakır ve içerisine süre (5 dk) ve yön( sol) bilgilerini yazar. En son ise durdur komutunu sürükleyip en sona bırakır, hazırladığı senaryoyu USB kablo aracılığıyla yaptığı tasarıma yükler. İşlem tamamdır. Hazırlanan programlama senaryosu script' e (satır komuta) dönüştürülüp, .txt veya .cpp olar...

Herhangi eski model bir telefonu USB portundan bilgisayara bağlamak istiyorum. Elimde hazır Samsung GT-E1205T var bi tane onla da yapabilriz. Yada istediğiniz model telefonu tedarik edebilirim. Hazırlayacağım windowsform ile; 1. Çağrı yapmak ve kabul etmek (bilgisayarın mikrofon ve kulaklığını kullanarak) 2. Mesaj almak ve göndermek. 3. Görüşmeleri mp3 formatında bilgisayara kaydedebilmek (bu olmasada olur ama olursa extra güzel olur) Ben daha ilerde bu windowsformu kendi müşteri panelime ekleyerek çağrı geldiğinde telefon numarası kayıtlıysa kimden çağrı geldiğini görebilmek ve müşterilerime kişiye özel mesaj gönderebilmek için kullanmayı düşünüyorum.

GPS ve GPRS ile haberleşme konusunda; mssql database yönetimi, web uygulamaları, mobil uygulamalar, java, flex,ajax, html5 konularında uygulama geliştirmiş veya hazır projesi olan arkadaşlar arıyorum.

Bir GPS Araç takip sistemi projesidir. Servis , web client, android app, IOS app olarak tasarlanmalıdır, aşağıdaki işlemlerin yapılabildiği bir sistem olacaktır.Tüm yazılım kodları açık kaynak kod olarak teslim edilmelidir, OOP standartlarına uygun olarak kodlanmalıdır, geliştirilebilir olmalıdır. Web üzerinden aşağıdaki işlemlerin üyelik bazlı olarak yapılabildiği bir yazılım olmalı, bir yönetim paneli bulunmalı ve yönetim panelinden web client için üyelik oluşturma, üyelik silme, değiştirme işlemleri yapılabilmeli, GPS cihazları eklenebilmeli, cihazların Sürücü, araç plakası bilgileri girilebilmelidir. Ayrıca yönetici web client hesabından Android ve IOS uygulamalarını kullanan kişilere mes...

İyi günler, Şu anda prototip geliştirme yaptığımız bir ürünün websitesini yaptırmak istiyoruz. Geliştirdiğimiz ürünün linki aşağıdadır: Http:// Bu akıllı gitarı USB ile internet sitesine bağlayabiliyor ve USB ile browsera bağlayabiliyorsunuz. Sitemizden video seyrederken ışıkları da senkronize bir şekilde yanacak. Uzun uğraşlardan sonra bir chrome plugini ile browser ve bilgisayarın USB portunu bağlamayı başardık ve bir videoyu da senkronize ettik. Fakat bu bizim upload ettiğimiz bir video idi (youtube değildi). Sitemizin en basit versiyonunu yaptırmak istiyoruz. Bunun için ekte bir adet sketch dosyası gönderiyorum. Gerekli olan beceriler kısaca javascript ve Youtube API dan olusuyor. Birde bizdeki plugini de biraz daha...

İyi günler, Şu anda prototip geliştirme yaptığımız bir ürünün websitesini yaptırmak istiyoruz. Geliştirdiğimiz ürünün linki aşağıdadır: Http:// Bu akıllı gitarı USB ile internet sitesine bağlayabiliyor ve USB ile browsera bağlayabiliyorsunuz. Sitemizden video seyrederken ışıkları da senkronize bir şekilde yanacak. Uzun uğraşlardan sonra bir chrome plugini ile browser ve bilgisayarın USB portunu bağlamayı başardık ve bir videoyu da senkronize ettik. Fakat bu bizim upload ettiğimiz bir video idi (youtube değildi). Sitemizin en basit versiyonunu yaptırmak istiyoruz. Bunun için ekte bir adet sketch dosyası gönderiyorum. Gerekli olan beceriler kısaca javascript ve Youtube API dan olusuyor. Birde bizdeki plugini de biraz daha...

İyi günler, Şu anda prototip geliştirme yaptığımız bir ürünün websitesini yaptırmak istiyoruz. Geliştirdiğimiz ürünün linki aşağıdadır: Http:// Bu akıllı gitarı USB ile internet sitesine bağlayabiliyor ve USB ile browsera bağlayabiliyorsunuz. Sitemizden video seyrederken ışıkları da senkronize bir şekilde yanacak. Uzun uğraşlardan sonra bir chrome plugini ile browser ve bilgisayarın USB portunu bağlamayı başardık ve bir videoyu da senkronize ettik. Fakat bu bizim upload ettiğimiz bir video idi (youtube değildi). Sitemizin en basit versiyonunu yaptırmak istiyoruz. Bunun için ekte bir adet sketch dosyası gönderiyorum. Gerekli olan beceriler kısaca javascript ve Youtube API dan olusuyor. Birde bizdeki plugini de biraz daha...

Güvenlik kameraları, gizli kameralar, gps trackerlar, gps cihazları üzerine bir e-ticaret sitesi olacak. 7 ürün kategorisi ve bu kategorilerin içerisinde 30'ar ürün çeşidi yeterli olacaktır. düzgün bir back office gerekiyor : ürün sayfaları çok rahatlıkla her açıdan konfigüre edilebilmeli, sitenin ana sayfası, diğer sayfaları her yeri rahatlıkla konfigüre edilebilmeli. sitede şu tarz ürünler olacak : minimal bir tasarım yeterli örneğin : ya da : (opencart ile yapılmış) site kardeşim tarafından ingiltere'de kullanılacak, bu nedenle ingilizce dilinde olması gerekiyor. bunu karşılıklı çalışarak yapabiliriz. (back office kısmının türkçe o...

Hi, I am looking to connect a mobile device (smartphone) with a / any robot (ABB, UR, FANUG, ...). I need a professional that can make a concept how to send data from the smartphone to the robot and from the robot to the smartphone, given the following strings: - USB, WiFi or Network cable allowed for data transfer - direct communication from smartphone to roboter and way back without intermediate server - if possible don't us a PLC (unless it is the own of the robot) - data send is a few ASCII characters both ways - protocols must be open source or commercially available for the smartphone and robot - if possible don't use OPC/UA Deliverables: - concept how to connect a smartphone with a robot - components that need to be purchased (inc...

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...platforms. The app will primarily offer ride-sharing services to users looking for shared transportation options. Key Features: - Real-time GPS Tracking: Users should be able to track their ride in real-time, ensuring transparency and safety. - In-App Payment: Seamless and secure payment options are essential to the success of the platform. - Rating and Reviews System: The app will need a feature that allows both drivers and passengers to rate and review one another, ensuring a reliable and trustworthy service. The ideal candidate for this project should have experience in: - Developing mobile applications for both iOS and Android. - Implementing real-time GPS tracking features within an app. - Integrating secure in-app payment gateways. - Creating user-friendly rating a...

need Simple live chat system between 2 users, no designing needed. 1. login using php 2. show list of users fetched from db 3. on clicking a user, initiate chat (if the other user not blocked the requested user) 4. the chat should be live, realtime. and the data to be stored in mysql db 5. option to block user should use php as backend and bootstrap as front end . you can use firebase budget AUD 50 and should be done today please don't bid and ask for more time and money

I have a communication protocol that is diagrammed. I need a freelancer to define it as a REST API. The freelancer can define it using POSTMAN and send postman data to me. all of the protocol data is integer type pls refer protocol diagram You must read the following before bidding 1. the bid price and schedule will be established at the time of bidding. If you talk and re-negotiate, it's a waste of each other's time. 2. Milestones are released after all deliverables have been received and verified.

need Simple live chat system between 2 users, no designing needed. 1. login using php 2. show list of users fetched from db 3. on clicking a user, initiate chat (if the other user not blocked the requested user) 4. the chat should be live, realtime. and the data to be stored in mysql db 5. option to block user should use php as backend and bootstrap as front end . you can use firebase budget AUD 50 and should be done today please don't bid and ask for more time and money

I'm in need of a mobile application for school buses, aiming to provide real-time GPS tracking for parents and enhance the overall bus tracking experience. Key Features: - **Real-Time GPS Tracking**: This feature is crucial. It should be able to accurately display the location of the school bus on a map. Parents should be able to view the bus's whereabouts in real-time. - **Parent Notifications**: It's important that parents receive notifications when the bus is nearby or approaching their designated stop. These notifications should be timely and reliable. - **Multi-Bus Tracking**: The app should allow parents to track not just one, but multiple buses. This is especially helpful for parents with multiple children attending different schools or taking differ...

Before you bid, read carefully. Do not ask me about my budget during the chat because I have already indicated the budget if you can't help or if you think the budget is too little, save some time for both of us I want to have a website made by a freelancer. the website is intended to track and register passengers and drivers. the database must have the following users. -Administrator -Driver -Parents what should the driver be able to do? 1. register 2. Scan passenger in and out using a QR code 3. be able to record comments for each passenger per day if necessary 4. being able to see each passenger monthly report of where they got in/out and at what time. 5. Be able to create a QR code for every name. Drivers must be able to clock in and clock out while driving. what shou...

I'm looking to establish a Virtual CFO services business in Saudi Arabia. With an eye on serving medium-sized enterprises, I need help with the following: - Assistance with the registration process: As I'm yet to register the business, I would appreciate help navigating the legal procedures and requirements for setting up a business in KSA. - Service Offering Dev...regards to medium-sized enterprises. I am offering this service in Australia, and Now I want to setup the service in the KSA Key Requirements: 1-Expertise in Virtual CFO Services setup 2-Local Knowledge about KSA 3-Legal and Regulatory Compliance 4-Market Research and Target Audience 5-Several types of businesses in KSA in need for Virtual CFO Services Please do not make a general BID before you read the ...

...talented book writer to help me put together a compelling and insightful book on business strategy and similarities with travelling, from a CFO perspective. But with a humorous take. I am attaching an outline for the book including titles for chapters etc. The ideal candidate should have a strong background in both business management and writing, in order to deliver a high-quality, engaging read that would resonate with an adult audience. Key Requirements: - Proficient in writing on business-related topics - Experienced in crafting books for adult readers - Familiarity with CFO perspective and business strategy - Ability to follow an existing outline for the book Responsibilities: - Understand and adhere to the provided outline, ensuring that the book covers al...

Tamil dev only bid me , dont waste your bid

Tamil dev only bid me , dont waste your bid

I'm looking for a skilled freelancer who can help me develop a custom GPS tracker using the Ai-Thinker A9G GPS/GPRS module. Key features: - Real-time tracking: The ability to track the device in real-time is crucial. - Speed tracking: I need the device to be able to measure and communicate its speed accurately. Compatibility: - The custom GPS tracker should be designed to work seamlessly with the Ai-Thinker A9G GPS/GPRS module. Requirements Details:- 1. Assign unique ID to module. 2. Switch button to enbale/disable tracking. 3. Fetch GPS coordinates 3.1 Store last 50 coordinates in memory. 3.2 Have customizable recording frequency (i.e. Rate at which module should capture GPS coordinates) 4. Push GPS coorinates to (firestore DB...

We have a VoIP app in flutter, voice calling with sip and FCM setup for the push notifications, we like to have a call alert like WhatsApp calling alert that can handle both foreground and background states in Android and iOS. If somebody already worked on this type of feature, bid and connect to show a demo.

Please read : need to just edit a wix website I am seeking an experienced Wix website designer who can offer a minimalistic facelift to my current website. The role mainly involves updating the site content and changing its layout/design. Skills and Experience: - Proven experience in Wix website design - Keen eye for minimalist aesthetics - Strong ability in updating textual content Project Tasks: - Update textual content throughout the site - Change the current layout and design to a cleaner, minimalistic style

I need an application developed for my final year project. The app's main functionalities should include: - Providing detailed information on various cow breeds - Locating nearby cow shield or foundations - Tracking the location of these foundations - Listing available products from these foundations, such as milk Ple...nearby cow shield or foundations - Tracking the location of these foundations - Listing available products from these foundations, such as milk Please note that this is a project for a final year student. Therefore, previous work, experience and detailed project proposals are preferred, but not mandatory. The app needs to be completed within a month. Ideal skills would include app development, GPS technology, database management, and a basic understanding of...

I'm looking for a skilled developer to create a unique, comforting feature for a teddy bear gi...gift. - Purpose: This module will record my breathing to provide a personalized and comforting experience. - Interaction: The user should be able to play back the recorded breathing by pressing a button on the teddy bear. The recorded breathing should be continuous on a loop. - Audio Quality: I prefer high-definition to ensure a clear and crisp sound. -Other Notes: I would like the module to be usb chargeable if possible. Ideally, you should have experience in: - Embedded systems or IoT for creating the recording module - Working with high-quality audio recording - Developing interactive features in soft toys or similar products If you're able to bring this project to lif...

When sending an emoji in Telegram, the script reads the information and chooses to delete unnecessary information in the same millisecond. Please note that it needs to be controlled within a few milliseconds. The current method is to roll two dice each time, delete a small one and keep a large one, throw once every 2 seconds, throw 3 times, I need to solve the ghosting when deleting so that it looks like a natural throw.

We have a VoIP app in flutter, voice calling with sip and fcm setup for the push notifications, we like to have a call alert like whatsapp calling alert that can handle both foreground and background states in Android and iOS. If somebody already worked on this type of feature, bid and connect to show a demo.

I have an Exce...The latest version has over 5000 columns which I need retrieved. I have a previous version of the Excel file with over 4500 columns. The Excel file was last saved on a USB and I am using Excel 2016. I do have a backup copy of the corrupted file. Key Tasks: - Recover the latest version of the Excel file with over 5000 columns. - Integrate the data from the previous version (4500 columns) into the latest version. - Ensure all data is intact and functional. Skills and Experience: - Expertise in data recovery and Excel. - Proficiency in Excel 2016. - Attention to detail and thoroughness to ensure that all 5000+ columns of data are successfully retrieved and integrated. Please bid with a specific plan on how you will tackle this issue inclu...

I'm looking for responsible individuals to assist with food delivery. I expect professionalism and excellent customer service. Key Responsibilities: - Prompt and safe delivery of food orders to customers - Excellent communication with clients and the ability ...service. Key Responsibilities: - Prompt and safe delivery of food orders to customers - Excellent communication with clients and the ability to convey feedback to me Ideal Skills: - Experience with food delivery is a plus - Strong knowledge of the local area - Good communication skills and customer service orientation You'll be using a custom mobile app for receiving delivery requests. The app has GPS tracking, so you can navigate the best routes and ensure timely deliveries. You must have a smartphone to effe...

I DO NOT HAVE TIME TO WASTE EXPLAINING WHAT THE SOFTWARE IS, WHY ITS USED. IF YOU DO NOT HAVE EXPERAINCES CREATING THESE MODULES - DO NOT BID, IT IS THAT EASY We are looking to create a module using the built in API for these functions create changepass terminate suspend unsuspend API documents - I have a number of products and modules I need to create, this can be a long term partnership for the right person.

I need a robust application to manage my airport pickup and dropoff service. The application needs to run on either the web or Android platforms. It must allow our drivers to submit GPS logs and photographs as proof in case a customer does not show up at the pickup point. The ideal freelancer for this project should have experience in developing similar solutions and have a strong background in web or Android development. A good understanding of GPS technology and image submission will be a plus.

...protect sensitive data. - Implement device encryption: Implement the necessary measures to ensure all devices are encrypted and secure. - Compliance Policies: - Data Protection: Develop and implement data protection strategies to comply with relevant regulations. - Industry-Specific Regulations: Implement and enforce regulations specific to our industry to avoid any non-compliance issues. To implement the specified policies in Microsoft Intune: Device-Specific Mail Access: Utilize Intune to restrict email access to designated devices only, ensuring security and compliance. Prevent File Copying and Downloading: Configure settings to prohibit users from copying or downloading attachments within emails, safeguarding data. Local Data Storage: En...

...significant role. Key responsibilities include: - Implementing voice recognition AI features - Discussing and implementing 2 other AI features - Integrating user profiles and authentication - Incorporating GPS tracking and mapping - Developing Audio/Video Calling, Messaging and Notifications - Building an Airbnb like Booking System Ideal skills for this project: - Proven experience in developing mobile and web applications, particularly in the Travel Tech or Social Networking fields - Strong background in AI and machine learning. - Proficient in user authentication and profile systems, GPS tracking and mapping, and social media integration - Previous experience working on travel tech or social networking platforms will be an advantage Please be based in Mumbai or be ab...

URGENTT PROJECT. The project would be to design and build a PCB device and 3D Printable enclosure that supplies power via POE (power over Ethernet) to equipment and can accept a standard construction equipment battery from a manufacturer such as Dewalt, Ryobi, etc. to provide the power to the attached device. There should be 2...Dewalt, Ryobi, etc. to provide the power to the attached device. There should be 2 Ethernet ports (an incoming and outgoing ethernet port) supporting 5Gbps and the power draw will be selectable via switch or button. The power will need to conform to the standards for 802.3af (POE), 802.3at (POE+), and 802.3bt (POE++) and include a power meter that shows the amount of battery power remaining. A USB-C port should also be included. The enclosure should be 3D ...

...internal processing on the micro-controller with isolated signals and ground. Two AB incremental encoders shall be connected to the board. Power Requirement: The board should operate effectively on a 5V DC power supply via USB. Functionality: It is like a signal sniffer. 1. Input and output are the same signals: two single-ended AB encoders, i.e. 4 lines of 5V DC and a common ground 2. Isolate the inputs and ground and connect them to the Arduino-compatible microcontroller like ATmega2560. Use interrupt pins to connect. 3. The power and communication should be provided via USB. 4. Use micro-controllers with built-in boot-loader or otherwise take care of the boot-loader flashing to be compatible with Arduino framework. Preferred PCBA design software: Autodesk EAGLE or ...

I'm looking for a professional mobile app developer to create a driver app for both iOS and Android. Key Features: 1. Login with your Car number in the Chauffeur Login section 2. Enter the OTP Received to login 3. Accept / View the booking received for the next 4...“End Ride” Button to complete the duty 12. Old booking can be tracked though History Tracking through App menu Before using the app kindly check if below 4 step app configuration is done well. 1. Check if you have latest version of app with you. If not download the latest version from Play store. 2. Check if all the required permission given to app like GPS, Camera, Files and photos. GPS permission should be in “always allow” mode 3. GPS location should be set on High accuracy ...

I'm in need of a machine learning or AI specialist who can adeptly perform data analysis and modeling on image data. Our goal is to read the data from passports of various countries, Data will be in various different languages. We dont want to use any paid api.

Looking for someone to create an asset that would allow for quick planet creation with ease, similar to Orbis () but will allow custom terrains, GameObjects to be placed and able to customise the world, environment, atmosphere and allow multiple placements of planets. Must also be able to be seamless similar to No Man Sky.

...bus management. This app should include significant features like: - Real-time GPS tracking that allows the physical observation of the school bus around the clock. - Outline of attendance management that streamlines the recording of student presence and absence. - Communication hub for parents with push notifications, SMS messages, and email alerts. These notifications should keep parents updated about their children's transportation journey, providing important details such as the current location of the bus, exact arrival and departure times, and any unforeseen delays or emergencies. The ideal candidate for this project will have proven experience in Android app development and a strong understanding of GPS tracking systems and push notifications. Simplicity...

I'm in need of a modern and professional-looking one-page WordPress site. The main goal of my website is to function as a platform for showcasing my services and products, not for direct online transactions. Wordpress / Design / Content / Form / Clean UX Please read the project description carefully!

...regulation. This project requires expertise in high-power applications, voltage regulation, and serial communications. Project Requirements: Microcontroller: RP2040 chip to manage all operations. Power Handling: Board must handle input of 24V. Voltage Regulation: Conversion of 24V input to 12V and 5V outputs. MOSFETs: 5 MOSFETs for 24V, 7A control. 4 MOSFETs for 12V, 5A control. Communication: USB Type-C for robust serial communication. Inputs and Outputs: 2 analog inputs. 1 One Wire communication interface. Additional pins for digital input/output as required. Deliverables: Complete PCB design files ready for manufacturing, including gerber files. Schematic capturing and PCB layout. BOM (Bill of Materials) with sourcing options. Documentation for assembly, testing, and troubl...

...Part A has a single function that function is to transmit a signal. The part needs to be housed in a waterproof container and be powered by a rechargeable battery preferably through USB. This part will actually go on a dogs collar. The device can either transmit vi. RF, USB or any other short range signal. Part B: Part B its job is to have two functions. The first function is to receive a signal from Part A, the second job of Part B is to transmit a specified RF signal to Part C when Part A is within 2 to 3 feet of Part B. Part B, needs to also be housed in a waterproof container and be able to be charged via USB. Part C: Part C, is a separate module that is already created its job is when it receives a specified RF signal from Part B it activates its predesigned ...

...delays or cancellations. Direct Localization: GPS integration to display the current user location and nearby transportation options. User Interface: Development of an intuitive three-line menu for accessing settings, personal area, and specific functions such as travel history. Notifications and Reporting: Real-time notification system for any issues at stops or stations, with user reporting capabilities. News Connection: Integration of direct links to local news and updates that may impact users' travel plans. Subscription Options and No Ads: Implementation of premium features for subscribers, such as optimized routes and ad-free experience. Required Technologies: Platform: Flutter for frontend, with a robust backend for data management. Database and ...

...also sending their live location. The key aspect of this project is ensuring this feature works across all types of devices. Key requirements include: - Development of an emergency key, functional across all devices - Integration with 911 services for instant calls - Incorporation of location tracking for accurate emergency response The ideal freelancer for this project should - Experience in GPS and location tracking - Knowledge of emergency services integration The device will send a full medical record for the patient No technical background needed just a strong powerpoint skills and will require some financial planning / graphs I'm open to hearing more about the technical approach and solutions you can bring to this project. Please provide details of your relevan...

I am looking for a skilled Excel dashboard developer to build a proficient...Understanding of various KPIs including revenue growth, customer acquisition, and conversion rate. Key Project Details: - I already have specific KPIs to be tracked and would share them with you post project initiation. - The dashboard should be designed to automatically update on a monthly basis based on manual input that would be added to calculation sheet for each kPI. - The dashboard must be easy to read, understand, and interactive. - the dash board should include risk alert for KPIs we are falling behind in My expectations are high, and I'm looking for someone equally fastidious in their work, precise and perfection-oriented. I appreciate candor, creativity and thoughtfulness in the problem-s...

...be number 1 for searches in the state of Florida for commercial signage, Parking lot lighting and Facilities Maintenance. I don’t know if this is initially achieved through paid search coupled with SEO and SERPs (this is by far not my field). I also want to include click to call, quick contact forms, and chat along with an estimator, client portal and possible booking calendar. Once you have read and understand this please send a msg that summarizes and explains how you can support this project include the dynamic piece based on geo location. I also require the ability to communicate during US EST 10AM to 5PM. Our current clients are large restaurant chains, hotels, car dealerships, banks, retail, etc…. Current website and a partial approach by another http

ein möglichst sehr kleines Sicherheits Funk-Modul dass sich erst oberhalb eines Einschlagwertes (Impact) selbst einschaltet, die Geo-Position (GPS,GlONASS,BEIDOU) ermittelt und die Daten per GSM an einen Leitstand übermittelt. ()

I am looking for a skilled developer to create an engaging and user-friendly informational website, with a focus on presenting documentation forms and messages. The website should include a contact form for people to reach out easily. I am keen to find someone who can create a website that makes these documents easily accessible and clear to read. Ideal Skills and Experience: - Experience developing informational websites - Ability to integrate and develop a functional contact form - Exceptional ability in presenting text-based content - Detail-oriented and with a strong sense of website navigation and architecture.

Notes---- pls Contact only if it is useful and you understand. Read first We are in search of a proficient Laravel/PHP developer to assist in the development of APIs for our upcoming matrimonial app. The backend infrastructure is based on Laravel, and we require the creation of several API endpoints to power core functionalities of the application. Notification API: Enable notifications for user interactions and events within the Code: Implement coupon code management for user promotions, including creation, validation, and : Develop APIs to manage user messages, including sending, receiving, deleting, and reading Active/Online: Track and display users' last active time and online Match: Calculate similarity scores between