Verifone vx520 switch to ethernet işler

Bu proje çalışıyor sen kendi tasarladığın araca göre ayarlarsın ve sensör ile bagajı açıp kapatabilirsin. Gereken Malzemeler: 1: Arduino Kartı: Arduino Uno, Arduino Nano veya benzeri bir model. Bu, projenizin kontrol ünitesini sağlar. 2:Manyetik Kontak Sensörü: Bagaj kapağının açık veya kapalı olduğunu algılamak için kullanılabilir. Reed switch veya hall effect sensörleri tercih edilebilir. 3:LED Göstergeler: Bagaj durumunu göstermek için kullanılabilir. Örneğin, yeşil LED bagaj kapalıyken, kırmızı LED ise açıkken yanabilir. 4:Dirençler: LED'lerin doğru bir şekilde çalışması için gereklidir. 5:Breadboard ve Jumper Kablo: Prototip devrenizi oluşturmak için kullanılı...

yeni kurulan ve sürekli büyüyen organizasyonumuzda yer alan her türlü bilgisayar ,server, yazıcı , router , kamera ,modem ,switch gibi donanımları aktif olarak listeleyecek ve bir diagram harita üzerinde gösterip , bunların güncel olarak tutulması işi . Örnek çizim dosyası ektedir. / Edrawmax üzerinde çizilmiş network diyagram - İşlem bir kez yapıldıktan sonra ayda 1 güncelleme yapılması talebimiz bulunmaktadır. aktif olarak 50 bilgisayar , 80 kamera , server i ups gibi toplamda 300 e yakın donanım mevcuttur.

Merhaba Ugur, Ben Kerim Hollanda'da yasiyorum. Senin sozlukyazilimi sitene gecenlerde baktim, fakat bugün tesadüfen burada dolasirken seni gördüm. Resimden bildim. Ingilizce megasözlük gibi bir sozluk yapip subdomain'a Hollandacasini eklemek mümkün mü ? Logout yapmadan switch yapabilmelisin iki site arasinda. Mobil uyumlu olmali sag sol kaymamali. Ukde, birgün, tematik olmamali.

--English description-- Türkçe için devamına bakın-- There is a laravel based 3 page information screen that we have prepared a long time ago. Old functions do not work after Yahoo api change (v1 was used), dhmi () switch to new site for the flight status of airport. Both the integration of the new weather and the ability to pull flight information back from dhmi will be made on the information screen. PS: Max budget is around €60 Uzun zaman önce hazırlattığımız laravel tabanlı 3 sayfalık bir bilgilendirme ekranı mevcut. Yahoo nun apisinin değişmesi (v1 kullanılıyordu), dhmi () nin yeni siteye geçmesi sonrası eski fonksiyonlar çalışmamakta. Bilgilendirme ekranına hem yeni hava durumunun entegrasyonu, hem de dhmi den tekra...

ARM çekirdekli STM32F746 Discovery ve/veya STM32F429-DISC1 kiti üzerinden Keil derleyicisi üzerinden C diliyle FreeRTOS, USB, Ethernet (Web Server, UDP/TCP Data gönderme) eğitimi verebilecek uzman arıyorum. Not: C bilgim iyidir. Konum: İstanbul

Diğer ya da belirsiz C ya da C++ Verifone vx675 software

nurit8020, PaxS900, verifone VX675 POS cihazları üzerinden uygulama geliştirecek.

pos makinası offline olarak yapılan ödemeleri kaydedecek track 1-2-3 ve pin olarak depolayacak fiş çıkartacak örnek olarak elimde bir yazılım mevcut ama lisans istiyor yükleyemiyorum

yazılım lisans hatasından dolayı çalışmıyor seri numarası kontrol ediyor bunu sınırsız yükleme haline getirmek istiyorum

...arayışımız söz konusudur. Aşağıda yer verilen teknik özelliklere sahip adayların sağlayacağı teknik destek karşılığında maaş+prim usulüyle çalışmasını beklemekteyiz. - Firewall, switch ve router gibi aktif cihazların kurulum, yönetim veya desteği konusunda deneyim sahibi, - Network güvenlik teknolojilerinde, Güvenlik Duvarı (Firewall), Saldırı Tespit ve Önleme(IPS), Web Content Gateway, Email Security, DLP ürünlerine hakim, - Ağ yönetimi, protokolleri ve servisleri hakkında bilgili (TCP/IP, DHCP, DNS, FTP, TELNET, Firewall, VPN, Router, vb.,), network topolojilerine hakim, - OSI Referans katmanlarının Ethernet ve TCP/IP standartları üzerinde uygulama tecrübesi olan, - Bilgi Güvenlik politikaları...

genel olarak iki tane ethernet araciligiyla baglanmis linux isletim sistemli bilgisayar arasinda komünikasyon saglamak. Bunun icin öncelikle tcp ve udp haberlesme protokolü icin bir c kodu yazilmasi lazim.(Ben server ve client olarak iki bilgisyara ayirabilcegimi düsündüm ama ne kadar dogru bilemiyorum tabii ve burdan sonraki adimlar icin pek bir bilgim yok ne yazik ki) Daha sonra ise bu c kodlarini Matlab/Simulinkte bulunan S-function bloguna implemente edilmesi gerekiyor. Yaratilan bu s-function bloklarinin yardimiyla bir Simulink modeli yaratilmali ve iki bilgisayar arasindaki komünikasyon Matlab/Simulink araciligi ile saglanmali.

Pic 16f877A ailesi ile motor yön kontrolü için, yazılıma radar ve limit switch ekleyecek ve radarın konum bilgisini picin hafızasında tutma kodlarını ekleyebilecek programcılar aranmaktadır.

Bir switch üzerine geçici bir konfigurasyon çalışması yapılacak

...perspective to become full-time in the near future. If chosen, you will immediately begin working with our development team in Istanbul so you need to be available to work as a freelancer right now. /// Adaylar üzerinden hızlıca geçip uygun kişiye hemen kontratlı olarak başlatacağız. Yakın gelecekte full-time çalışma perspektifi olacaktır. Seçildiğiniz takdirde İstanbul'daki geliştirme takımımızla beraber hemen başlayacaksınız, bu bakımdan şu an çalışmaya müsait olmanız gerekmektedir. The product you will work on is a web-based analytics interface comprised of dashboards and reports built on top of the .Net platform with Knockout JS as the JavaScript framework. The data the reports pull come from MS SQL Server. Althou...

...looking for an adept rideshare app developer to comprehensively enhance our existing app for Turvy, a leading rideshare company. The project entails updating outdated modules, replacing existing Mapbox maps with Google Navigation, integrating Google Navigation with a customized UI to reflect Turvy's brand identity, introducing new features, and ensuring the seamless functionality of existing features like airport FIFO (First In, First Out) for drivers. Key Responsibilities: Update Source Code: Ensure outdated modules are updated to their latest versions, maintaining compatibility with Turvy's existing backend, frontend, and database systems. Replace Existing Mapbox with Google Navigation: Seamlessly transition from the current Mapbox maps to Goog...

...AutoHotkey developer to customize the Texter application, a text automation tool, to enhance its functionality significantly. The objective is to enable quick switching between different tabs (bundles) based on user-defined abbreviations, among other features. Detailed Requirements: Multiple Tabs Support: Implement up to 15 different tabs, each selectable via specific user-defined abbreviations. Configuration in Preferences: Allow users to define and modify abbreviations for switching tabs in the application's Preferences menu. They should follow the format xyz{Enter}, and should trigger both the tab switch and the expansion of the respective abbreviation at the cursor's position. Instant Tab Switching: Tab switching must be instant ...

...promotional video to boost my brand's awareness. The final product will be designed for the general public, so it should be appealing to a broad and diverse audience. Below are my key needs: - Ability in creating engaging and relatable animations or images. - Experience in developing content that increases brand visibility. - An understanding of how to craft a narrative that will captivate the general public. Skills looking for: - Expert animation skills - Strong graphical and visual sense - Proficiency in video editing software - Ability to translate concept to screen Your task is to create a video that will draw viewers in and leave them with a lasting impression of our brand. Your experience and creativity in video creation an...

As a business that values user experience, increasing the perfo...provider but we're targeting enhanced speed and efficiency through Cloudflare. Here are the main areas we are aiming to improve: - Page load speed - Server response time - Content delivery speed The ideal freelancer for this task should have: - Extensive experience in migrating websites to Cloudflare - Exceptional knowledge of both Hostinger and Cloudflare platforms - A proven track record of optimizing website speed and content delivery - Absolute commitment to meeting project deadlines Ultimately, we're looking for a holistic improvement in our hosting capabilities while keeping downtime to the absolute minimum during the switch. If you're up to the challenge, we&...

I am in need of a professional accountant to help me with my quarterly tax filings and 1099s. Currently, I am working with another provider for these services, but I am unhappy with their performance and looking to switch. Key Responsibilities: - Assist with quarterly tax filings - Handle 1099 preparation Ideal Skills & Experience: - Proven experience in handling tax filings for businesses - Familiarity with 1099 preparation - Previous work experience with dissatisfied clients Please include your background in similar projects and your approach to ensuring accuracy and timeliness in your bid. Would prefer an individual or company based in Florida, preferably the Amelia Island/Fernandina Beach Area.

I need to build a Mac/ipad application. Write in swift so it’s cross compatible. It is an html website editor WYSIWYG. I don’t need anything fancy, but I am wanting to build this because I need this for myself and there is not good ones available and maybe others could benefit from it. What I want is an html editor with live preview, where you can switch between the html and editing it as a text document and it auto converts to html. Main features include: Manage organization, including multiple html documents integrated, as well as other documents such as images. Organize a “project” with multiple files and folders, kind of like an IDE but simplified for HTML editing. Expect your website as code files in the same folder structure yo...

The overall requirement of this project is to adapt a current Windows application that is programmed in C#. The source is : SysBot is a program that automates Pokemon trading, within Pokemon games on the Nintendo Switch. What is Pokémon trading? Within the Pokemon game, you can trade "Pokemon" with another player of the same game. This is called "Link Trading". We already have this routine covered and this is not in scope. We are interested in the Surprise Trade. A Surprise Trade is where you offer a Pokemon, and you trade with a complete random person, who also offers a Pokemon. It is not known what will be traded, hence the name Surprise Trade. There are 2 Pokemon games that use Surprise Trade. Pokemon Sword and Shield, and Pokemon Scarlet a...

I'm looking to switch my current WordPress website to Shopify. My main goal is to improve the overall ecommerce functionality and design options of my online store. Required Skills: - Proficient in both WordPress and Shopify platforms - Extensive experience in website migration, particularly from WordPress to Shopify - Strong understanding of ecommerce best practices - Capability to ensure a smooth transition with minimal downtime My budget is 3k INR

issues: Scenerio 1: 1. Launch the app 2. Tap on new password 3. enter something 4. tap on eye icon to switch to normal textfield 5. enter something 6. tap on eye icon again to switch back to SecureField 7. Enter something 8. issue: new password text get cleared unexpected Scenario 2: 1. Tap on new Password 2. Enter something on re-enter new password 4. tap on new password field 5. enter something 6. issue: new password in SecureField get cleared

...seeking a highly skilled and experienced WordPress Website Developer to create an exceptional website for our business. The ideal candidate should possess a strong command of WordPress, with expertise in theme customization, plugin installation, and database management. Proficiency in HTML, CSS, and JavaScript is also essential. Responsibilities: - Design and develop a modern, user-friendly website that aligns with our business objectives. - Customize WordPress themes to produce an aesthetically pleasing and functional website. - Install and configure plugins to enhance website functionality and improve user experience. - Ensure optimal performance by managing and maintaining the website's database. - Collaborate with team members to ensure the website ...

Experience with Nintendo Switch must be verifiable.

...individual with the ability to locate pointers within Nintendo Switch Pokemon games. These pointers will then be used to create a routine within the game required. C# is not used for pointer finding. There are specific programs available to find such pointers, which we can provide. Ideally, you have a v1 Nintendo Switch to enable you to do pointer finding. C# knowledge is essential to this project - as the pointers found, will be implemented into an already existing Windows application which is written in C#. We would then require the individual to write a routine using these pointers found. We can provide an example of how this routine would look, from previous Pokemon games. To ensure we know you have read the fu...

I am seeking an flutter developer to make a single modification: switch it from dark mode to light mode. Here are the details: - I have purchased flutter app code from Codecanyon. I just want someone to build ios app with that purchased code & publish to app store by changing app name, app icon, package name, splash screen animation etc... - Color Adjustment: The color scheme should be shifted to neutrals and pastels to suit the light-mode aesthetic. Specifically, I want to change colors, not fonts or icons. - Publishing to the App Store: It's crucial that you have experience in this area, as I will need you to guide the app from final code to publication. Rest assured, I possess the necessary files a...

I am seeking a proficient PCB Designer who can help me design a PCB layout for Buck Boost Converter circuit. The project specifics are: - The PCB is only two layers. Front copper layer and Back copper layer. - KiCad is the software to be used. - Working with both through-hole components and surface-mount devices to develop the PCB. - The primary application of this board is for prototyping, so accuracy and attention to detail are a must. Please make sure to include examples of your past PCB designs in your proposal if available.

...problematic issue that's affecting all the pages on my website. I've been utilizing the WordPress default menu manager to handle the menus. This problem is hindering my ability to update and manage the content effectively. I am seeking a proficient Wordpress developer who can: - Diagnose why the dropdown menus aren't functioning properly. I believe it is has something to do with the theme I'm using (Roosevelt) because when I switch themes the dropdowns start working. This started when I updated to the newest version of Wordpress. - Use their extensive knowledge of Wordpress and its default menu manager to rectify this issue swiftly. - Provide a guideline on how to avoid this in the future to keep my website u...

...US telemarketer for a cold calling market research campaign to gather feedback on Pool Service companies (business statistics, size, etc.) and software usage. Your tasks will include making calls, asking targeted questions, and gathering and reporting certain information in Google Sheets. Required: Availability from 9a-5p EST on 5/13 and 5/14, ability to make ~500 domestic calls from US cell phone/number. Key Responsibilities: - Conduct a series of cold calls to to pool service companies to collect data on their business statistics (size, etc.) and software usage (offering $USD incentive for participation) - Collect feedback on which specific Swimming Pool software they use, Net Promoter Score (NPS), Likelihood to Switch to...

...skilled developer to build a trading bot on Solana using Rust preferred or Typescript for the back end, which will be interacting with the Raydium API. The bot should be able to monitor the WSol/New Token pair on Raydium and execute trades based on the detection of the addition of liquidity, as well as sell at specified sell points. The bot will operate on Windows using React or similar for a simple UI. Wallets and custom RPC stored in an ENV file. The UI will be used for Buy and Sell settings config,(gas price+ slippage_ amount of tokens to buy in WSol for buy . Token contract to be pasted and then tx executed until Liquidity Pool is formed and bot attempts to purchase the token. Once token purchased the bot will send the token evenly to up ...

...experienced US telemarketer for a cold calling market research campaign to gather feedback on Pool Service companies (business statistics, size, etc.) and software usage. Your tasks will include making calls, asking targeted questions, and gathering and reporting certain information in Google Sheets. Required: Availability from 9a-5p EST on 5/13 and 5/14, ability to make ~500 domestic calls from US cell phone/number. Key Responsibilities: - Conduct a series of cold calls to to pool service companies to collect data on their business statistics (size, etc.) and software usage (offering $USD incentive for participation) - Collect feedback on which specific Swimming Pool software they use, Net Promoter Score (NPS), Likelihood to Switch ...

I'm looking for experienced Python and Ansible experts to help me with network automation specifically focusing on Cisco switches. • Your primary task will be to automate my existing network comprising of Cisco Switch devices. • Your specialties should unquestionably include Python, Ansible, and a thorough understanding of switch automations. • Proficiency with Cisco devices is a must. This project requires someone with great attention to detail and in-depth understanding of network automation to enhance efficiency of my network devices.

...Matlab developer with expertise in machine learning and signal processing to build a cryptocurrency trading signal application. The core of this project will be to implement an LSTM (Long Short-Term Memory) neural network that utilizes techniques like Fourier transform among other signal processing methods to generate buy and sell signals based on historical cryptocurrency data. Key Project Requirements: - Data Handling: The application should be able to import and use cryptocurrency data from this Kaggle dataset: Binance Full History. - Signal Processing: Integrate Fourier transform and other signal processing techniques to analyze the data. - Model Implementation: Develop and train the LSTM neural network model to predict potential buy and s...

...displays icon 1, which indicates the function corresponding to a short press, and icon 2, which indicates the function corresponding to a long press, on the display device when a steering wheel switch that allows short press and long press is pressed shortly. At this time, icon 1 will be displayed in a position that corresponds to the position of the short-pressed steering wheel switch, and icon 2 will be displayed in a different position from icon 1.（For example, if four steering wheel switches A, B, C, and D are arranged in a circle, the display device will also display steering wheel switches A, B, C, and D in a circle. At this time, if you shortly press steering wheel switch A, icon 1 will be displayed at the steering wheel switch A p...

I'm in need of a skilled professional to configure my Fusion PBX system to implement direct call routing. Key Requirements: - The system is currently cloud-hosted. Prior experience with cloud-hosted PBXs is a plus. - I have between 1-10 phone numbers that need to be set up for direct routing. So the Requirement is : You have to configure Inbound Calls using a Soft Switch and Route them to Outbound to an External Location. I am not familar with Fusion PBX UI, which is causing the Problem only. The ideal candidate for this project will have: - Relevant experience in configuring Fusion PBX systems. - Strong understanding of direct routing in PBX systems. - Prior experience with cloud-hosted PBX systems.

...Deliverables: - Incorporation of customer testimonials, showcasing the benefits and savings they've enjoyed since making the switch to our solar solutions. - A product demonstration, guiding potential customers through our offerings and highlighting their features, advantages, and benefits. - An overview of our company history, underlining our credibility, experience, and commitment to green energy. Ideal Expertise: - Experience writing and structuring effective Video Sales Letters, particularly within the solar energy or broader renewable energy sector. - Understanding of homeowners' concerns, needs, and motivations when it comes to their energy usage. - Ability to weave storytelling and factual information into a compelling narrative th...

I'm seeking a proficient developer with experience in Raspberry Pi Pico, USB ethernet programming, NTP (Network Time Protocol) clients, and web server development. Integrate existing open source libraries to achieve the following objective. - Project is completely hosted on a Raspberry Pi Pico board using Arduino IDE, FreeRTOS, and libraries. - Creates an Ethernet endpoint when USB is connected to a Fedora Linux host PC. - NTP client enabled to obtain accurate Global time synchronization. - Web server with a single page offered which display a "Hello World" page with current date and time, and a drop down box where the host can set the time zone. This RPI Pico web page is accessed from FireFox on the Fedora Linux host.

...regulate voltage to 6VDC, with a max current of 500mA. This circuit will be powering LED lights and should be compatible with an input voltage range of 12-24VDC. The circuit should also account for the presence of 4 diodes. - 4 Diodes - forward V - 8V limit to 7V max - max operating current 500mV - inline switch to turn any of the diodes in circuit on/off - need an LED in line for each Diode if active or blown ( when diode fails it is shorted 1ohm) Key requirements and considerations include: - Voltage regulation: The primary functionality of the circuit is to regulate input voltage to 6VDC for optimal LED power. - Current capacity: The circuit should handle a maximum current of 500mA, ensuring the LED lights operate efficiently. - Input vo...

I'm in need of a proficient PHP developer to create a custom code for communicating with an Ingenico POS terminal via Ethernet. Here are the specifics of the project: - **Communication Method:** The primary method for the communication is through Ethernet. You need to be well-versed in this type of communication to tackle this task efficiently. - **Transaction Handling:** The main purpose of the code is to transmit the amount to the terminal and verify if the transaction can be successfully processed. **Requirements**: - experience in PHP - Prior experience with Ingenico POS terminals or similar devices is a plus Please note that this project is solely for the communication between the system and the terminal. There is no need for i...

I need a skilled Android developer to create an app that generates subtitles in Hinglish. The app will primarily need: - A user-friendly interface for easy navigation and interaction - Efficient subtitle generation for videos - The ability to switch between different fonts and colors - A built-in platform for sharing the subtitles - The possibility to add background music I don't have a strict deadline for this project. I'm more interested in finding a professional who can deliver a high-quality app. Previous experience in subtitle creation and Android app development is a plus.

I'm looking for a professional to integrate Stripe payment gateway into my Shopify store. Key Details: - Current Gateway: My store currently uses Razorpay. I need to switch this to Stripe. - Currency: I only operate in a single currency, so no multiple currency support is needed. - Product Type: The store sells physical goods, not digital products or services. Ideal Candidate: - Proficient in Shopify store operations and payment gateway integration. - Experienced in handling e-commerce platforms, particularly Shopify. - Familiar with Stripe and its integration with Shopify. - Able to ensure a smooth transition from Razorpay to Stripe without any disruptions to the store's operations.

We are seeking an experienced electrical engineer to design a multi-output power supply for a portable AC servo drive. The ideal candidate will have expertise in power electronics and PCB design, with a proven track record of creating efficient and compact power solutions. Input Specification: 220Vac. Output Specifications: Two sections are required: Power Ground Circuit: +15V, +5V. Lower Ground (controller) Circuit: +12V, +5V, +3.3V, -12V. Ensure that both grounds are isolated from each other. The design must be lightweight and compact, suitable for a portable device. We need the design to be highly reliable and efficient, with considerations for safety and durability. Job Responsibilities: 1) Design: Develop a schematic and board layout for a multi-output power supply t...

Hi Aryan R., these are the two projects: 1) adding Rongta network ( Ethernet and wifi ) connection - Milestone 1 : $200 2) Changing invoice and payment page template to show slide show on the half left side : Milestone2 : $50

I'm looking for a skilled individual who can create a sketch for a rather specific and interesting project. Key Requirements: - Utilize a crash sensor micro switch: This element is the core of the project as it's designed to respond to an impact and trigger a series of events. - Trigger a 12v motor: The motor should start running as soon as the sensor detects an impact. - Simultaneously play a short MP3 file: The audio should begin playing once the sensor is activated, but it should be less than 30 seconds in duration. - Activate a solenoid latch: This component is crucial as it performs a critical function in the project. The solenoid latch should be triggered once the motor is on and the music is playing. - Stop the music and motor: Once the solen...

I'm looking to set up a SaaS website with the Blocksy theme on WordPress. The key focus here is to ensure the website can function effectively as a CRM tool. Key Features: - I need the website to be fully functional as a SaaS application with CRM capabilities. - The CRM functionalities are essential to the core of this project and must include lead and contact management, sales pipeline tracking, and email marketing integration. - The Blocksy theme should be used to customize the website and its header and footer to ensure a unique, professional, and user-friendly design. - Please note, the core of this project is the CRM functionality, the website should integrate seamlessly with these features. Ideal skills and expertise: - WordPress d...

...like us to switch up how they receive auto-emails when someone completes their online Forms . Currently, if someone completes the form - an email is sent to Sales @ and to me . The auto-email comes from noreply @ or noreply @ or noreply @ ironwoodde.com. The Evergreene Homes in-house tech team does not want it to come from the community as they are afraid of spam. And they said it doesn’t matter who we make it come from - as it just goes to the Sales Team and to me. So, it could come from noreply @ and we could put anything in the blank … maybe noreply @ or noreply @ and noreply @ … is this possible to switch? The support team said like below You could set it to noreply

I'm looking for a programmer to help me adapt some existing C++ code for a virtual camera system. The code I currently have is in C++ and designed to operate on Windows. Key aspects of the project: - **Adaptation**: The task is to take this existing code and modify it to allow the user to switch between different camera modes. I have a specific vision for this system which includes switching between: - The system camera - The system camera with a watermark - A full-screen image - **Functionality**: The change between these modes should be quick and seamless, and should be implemented through keyboard shortcuts. The user should be able to easily navigate and switch between these modes without any lag or glitches. &mdas...

I'm in desperate need of a seasoned writer to help with my online work. This might include different kinds of writings but preference will be given to a jack of all trades. Let's break it down: • Required Skill: Expertise in a broad range of writing styles is a plus. As the specific style of writing needed was not specified, the ideal candidate should be able to switch from one style to another effortlessly. • Purpose of Writing: The writing should be able to fill up free time. This suggests that the content must be highly engaging and captivating for readers to keep coming back. Therefore, the ability to create such content is paramount. In conclusion, an experienced versatile writer, who has a knack for produc...

...with VWE runs via the following portal: manual: (they now use POST option) (logins below) In the "status" tab I can indicate to which URL this link forwards the data. In the "sandbox" tab you can also test the link to your own URL. As you can see, the link pushes all data to This is the script that can be found on the file server that ultimately receives the data and processes it in Wordpress. The Incremental link makes a POST request to this script containing the data. In the script you see 3 types of actions in a switch: Add (new vehicle) Change (vehicle exists, adjustment is being pushed) Delete (vehicle is deleted) Below is a brief explanation of the three functions involved: add_post Here