Ac to dc converter circuit diagram jobs

I am in need of a freelancer with a strong understanding of digital circuit design, computer architecture, and logic gates. The project involves creating and simulating a circuit in LOGISIM. Here are the specifics: I need a guru in the field of Digital Logic Systems who can help me solve problems related to registers, counters, logic gates and sequential logic circuits. Could benefit from knowledge and experience in: Synchronous Sequential Logic: Analysis of Clocked Sequential Circuits Synchronous Sequential Logic: State Reduction and Assignment, Flip-Flop Excitation Tables Design of Counters, Problems Registers, Shift Registers Ripple Counters, Synchronous Counters Timing, Problems I would appreciate it if you could provide detailed project proposals, as well as ex...

...electronics professionals to help design a LED controller that will be capable of powering and running 20,000+ LEDs, support multiple sensors (Bluetooth, BLE, PIR, temperature, humidity, contact, ambient light, report current, voltage draws, etc.) I come from an engineering background myself, however I am not an electronics engineer. I come from mechanical and computer science backgrounds. The board I would like to design is for powering LED strips all around my house. This is for a hobby and to prove a point to myself. I have already built the prototype using breadboards. However, it is far from what I would like because of the issues of using breadboards. I can put together the entire schema on a paper and have wired it up on a breadboard. I would now like ...

I'm seeking a Florida-based paralegal with expertise in the state's efile portal and procedural knowledge specific to the 15th Judicial Circuit. This will be for a project lasting 1-3 months. Key tasks will include: - Document preparation and filing through the efile portal - Comprehensive case research to aid in legal proceedings. The ideal candidate for this position should: - Possess demonstrable experience with the Florida efile portal - Have a strong understanding of the 15th Judicial Circuit procedures - Be proficient in legal research, particularly in the Florida legal system. Given the nature of the project, applicants not based in Florida will not be considered.

...candidate should have a thorough understanding of high power installations. The project revolves around creating an electrical drawing for a small-sized industrial site, which comprises of a single building floor. The key aspects to be incorporated in the electrical drawing include: - Transformers - Circuit Breakers - High Voltage Switchgears Your proficiency in designing and integrating these components effectively into the electrical drawing will be highly essential. Experience with similar-sized industrial sites will be a strong advantage. Accuracy, attention to detail and compliance with safety standards are paramount for this project. This is for City of Surrey permitting for installation of high power equipment and required engineering field visit document...

I want doc converter website . frontend for React and backend for Django/python. my budget 45k if any one interested on same technology bid. duration i have 45 days for development. Thanks SHT

I need a capable individual who can design an Electrical MCC panel CAD drawing, detailing crucial information for manufacturing purposes. Key output should include: - Panel layout - Equipment placement - Wiring diagram All using AutoCAD software. Experience with electrical systems, manufacturing processes, and detailed AutoCAD drawings is critical for this role. Previous experience in creating Electrical MCC panel designs will be a substantial advantage.

I'm in need of a skilled Electrical Design Engineer for a project that will involve circuit design, electrical load calculations, wiring and layout design. Key Requirements: - Expertise in AutoCAD - Proficiency in PLC & HMI Programming - Solid experience in industrial or commercial projects - An Electrical Engineering degree Your responsibilities will include: - Creating and optimizing circuit designs - Accurately calculating electrical loads - Designing efficient and practical wiring layouts - Utilizing AutoCAD for the development and modification of electrical designs - Assisting with PLC & HMI programming tasks The ideal candidate will be someone who is both creative and detail-oriented, with a strong foundation in Electrical Engineering and a proven track...

...skilled and experienced product designer and developer to rapidly and cost-effectively build a proof of concept for a SaaS web app. The application aims to significantly enhance productivity for software teams by facilitating seamless collaboration and clear visualization of software architecture through advanced sequence diagramming tools. Key Features: - Visual Sequence Diagram Creation: An intuitive drag-and-drop interface that allows users to create detailed sequence diagrams. Includes features like auto-numbering steps, easy addition of participants from a pre-populated list, and maintaining consistent interaction sizes. - Navigation Panel: A robust navigation system similar to Notion with Pages and Subpages, facilitating easy access to di...

Objective: The goal of this project is to design and program a remote control system consisting of a handheld remote with two buttons and one potentiometer, and a receiver unit with two DC motor controllers. The remote will control an actuator (for up/down movement) and a servo motor (for position control). The communication between the remote and the receiver will be facilitated by HC-05 Bluetooth modules. Components: Remote Unit: Microcontroller: PIC16F18326 Bluetooth Module: HC-05 Inputs: Two push buttons for controlling the actuator. One potentiometer for controlling the servo motor position. Receiver Unit: Microcontroller: PIC16F26K80 Bluetooth Module: HC-05 Outputs: DC motor pwm for the actuator. Servo motor controller for the servo motor. Functionality: Rem...

My IVD device currently suffers frequent, random interruptions in operation due to sudden electrical disconnections. I am in need of a biomedical engineer with a specialty in electrical circuits to rectify this issue. Ideal Skills and Experience: - Expertise in troubleshooting and repair of IVD medical devices - Proven experience with electrical circuit diagnosis - Understanding of connection issues in medical appliances - Ability to work with minimal oversight considering the device's specific operational circumstances. Please only propose a solution if you can reliably address this irregular disconnection problem, as this is creating significant disruption in our clinic.

a text to image converter website where i have integrated my site with stable diffusion 1.5 model and just want a skilled professional who can fine tune the Stable Diffusion 1.5 model. I know there are colab notebooks available. But the code is really complicated. I want a very basic and simple code which I'll be able to explain to my evaluators since this is my mini project

...describes them, and proposes solutions. I need your help to write down these tasks and solutions as they are presented in the video. The goal is to create a written story incorporating the tasks and their corresponding solutions as mentioned by the presenter. This narrative provides a structured overview of the tasks, problems, and solutions discussed by the presenter. Each task should be accompanied by the identified problems and the proposed solutions, creating a comprehensive guide. What I need: Identified Tasks: Clearly list each task discussed by the presenter. Problems: Detail the problems or issues associated with each task. Solutions: Describe the solutions proposed by the presenter for each problem. Diagram: Create a diagram illustr...

I need an expert in the field of electronics, specifically with experience in designing data barges and schematic diagrams for electronic devices. The core purpose of our device is ultrasonic rodent repulsion. The device will generate ultrasonic waves to deter rats. Your responsibilities would include: - Designing a detailed schematic diagram of the electronic device - Providing a complete barged data set - Ensuring the ultrasonic generation feature functions optimally for rat repellent purposes Ideal Skills: - Proficiency in designing schematics for electronic devices - Experience in data barge construction - Prior work on ultrasonic devices, especially rat repellents, is a huge plus. Please provide examples of previous relevant work when applying.

Project Description: I am looking for an experienced electronics engineer or circuit designer to create a detailed LTspice simulation for a bidirectional memory cell circuit. The simulation will help verify the stability and transitions between different charge states in the memory cell. The work will be based off the following European patent: A SYSTEM AND METHOD FOR BIDIRECTIONALLY BASED ELECTRICAL INFORMATION STORAGE, PROCESSING AND COMMUNICATION. Project Requirements: 1. Memory Cell Design: Components: NMOS Transistor Capacitor with specific properties Voltage Sources for write, read, and control operations Specific Capacitor Component: Manufacturer: Murata Series: GRM Part Number: GRM033R60J105ME15D Capacitance: 1pF Voltage Rating: 50V ESR: Low ESR (specific va...

I require an adept engineer to create and implement a clever and effective electronic control system for a 24v Dynamo max 12 amps. Your design should assure: - Voltage regulation: To keep the output consistent and prevent any potential harm to other components. - Overload protection: I require a control system that includes both self contained control and fuse protection for error conditions. The system should comfortably work within a voltage range of 0-26.5V DC for charging lead acid batteries. A professional with a good understanding of electrical and control systems engineering would be ideal. Previous successful designs of similar control systems would be a significant plus.

I am on the lookout for creative minds to help craft a new logo for my website. Please consider these crucial aspects of the project: - Color Scheme: The ideal colors for the logo would include Electric blue, Deep-Green, and metallic silver, implying a modern and technological vibe. - Emotion to Convey: The logo should reflect a sense of utmost professionalism. Every component should align with a professional aesthetic. - Icon Usage: I am interested in intertwining two specific symbols into the design concept - a circuit board and a globe. Those fluent in modern digital design and experienced in integrating complex symbols into logo design will find themselves ideal for this project. Your portfolio showcasing similar works will be greatly appreciated.

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I need a design that will combine a retail space with a sporting activity zone for an archery business. This is just an idea at this time, so doesn't need to be full blueprints, just a design with measurements. Key Requirements: - Retail Display Area: A modern, sleek and efficiently designed display area that can hold a variety of products. Please review what archery stores look like to make choices or this area. - Sporting Activity Zone: The area should be designed for customer engagement, with proper space planning to accommodate sporting activities. One part of the zone must be 18 meters long and 10 meters wide. Here is a picture of what we have now. Another part (these must be separate) should be 50 meters long and 6 wide - Workshop

Simulations of rectifier matching circuit only.

I'm in need of an experienced LabVIEW developer who can create a program to control a Keithley instrument. The necessary measurements to be implemented are DC voltage and resistance. I'm looking for functionalities such as: - Ability to measure DC voltage in a low range (0-10V) - Capacity to measure resistance in a low range (0-1kΩ) - Real-time data monitoring and data logging capabilities - Maximum Power Point tracking in solar cells (see attached file for more details) Wishing to work with someone who has a firm background in electrical engineering and a robust understanding of Keithley instruments. Prior successful projects controlling lab instruments using LabVIEW is desirable.

I am looking for an experienced electronic engineer to design and develop a Radio Frequency Integrated Circuit (RFIC). This RFIC should be designed to handle video signals over a medium range distance of 100-500 meters. Key requirements: - Proficient experience in RFIC design and development. - Knowledge of signal amplification, modulation, and frequency conversion. - Expertise in designing for indoor commercial settings. The focal functionality of this integrated circuit is centered around video transmission. It must be competent at maintaining a robust and quality video signal, even amidst the potential interference present in an indoor commercial setting. Your design should provide a practical solution for these challenges. Your background in electronic ...

I'm seeking a Zoho Analytics expert to help me design and implement a sophisticated KPI dashboard. 1. The "" shows two dashboards my ERP expert friend created for his Amazon/Noon sales reports using Power BI, then moved to Zoho Analytics as reference1. I took some KPIs from his dashboard to include in my own, along with additional ones. 2. Initially, I outlined them in a diagram, attached in the PDF below. 3. I then restructured them using ChatGPT for ease of understanding, which you can find in the "KPIs Dashboard" Word file. -Also the attached "Average Inventory" Word file explains how to calculate this metric, also derived from ChatGPT, in case you need guidance. 4. My Zoho Analytics has the data source ready ...

I'm in need of a skilled professional to develop a PCB power supply that can operate at 150°C. This power supply should have the following specifications: - Variable input voltage (80V DC 110V DC) - Output Voltage: 40V - Output Current: 2A - Protection Features: Over-voltage protection The successful candidate will need to have a deep understanding of power supply design, as well as experience working with high-temperature applications. Since the power supply is intended for downhole tools, where environmental conditions can be extreme, it's crucial that the design includes robust protection mechanisms, particularly over-voltage protection. This will ensure the longevity and safety of the tool. If you've worked on similar projects, or ha...

...is to visually illustrate complex security concepts in a clear and engaging way. The center of the circle should have either of icon of a high rise building or the words building The circles around the icon should be labeled (outer moving inwards) 1. Perimeter Protection (outer) 2. CPTED 3. Access Control 4. Security Camera System 5. Lighting 6. Security Staff 7. Locks and Keys We need one MASTER diagram with everyone of the circles labeled Then we need a diagram for each circle (7 diagrams ) with each circle highlighted with either a different color, larger font or Bold Total of 8 diagrams Key Requirements: - The diagrams should be moderately detailed, ensuring that the core concepts are clearly represented without overwhelming the reader. - Annotat...

I need a Flutter app compatible with both iOS and Android devices that will primarily function as an image-to-text converter. The app should use the chat GPT or other LLM API for this purpose. Key Requirements: - Flutter app compatible with iOS and Android - Chat GPT or similar LLM API integration - Image-to-text conversion using Microsoft Azure Computer Vision API or similar other APIs Ideal Skills: - Proficiency in Flutter development - Experience with AI APIs and chat GPT - Familiarity with Microsoft Azure Computer Vision API Please provide previous relevant work in your portfolio when bidding.

I'm in need of a reliable videographer and photographer to attend a climate activism event in Washington D.C. and capture high-quality footage and photos which will be used to document the event. Start: Wednesday, June 12, 2024•5:00 PM Nationals Park•1500 South Capitol St SE, Washington, DC Key Requirements: - Your role will be to capture the event in an energetic and passionate way. It's important to convey the intensity and seriousness of the cause. - You will need to ensure that the footage and photographs prominently feature banners, placards, and the activists' interactions with authorities. These are key elements of the protest that must be covered. - The final product should be suitable for sharing on social med...

I need those 5 activity diagrams for 5 scenarios in 5 hours I will send you my use case diagram can you able to understand from it

As a Python-savvy trader, I'm in need of a professional who can help me create an efficient and reliable Python solution framework that will be used to backtest a specific trading strategy. An independent model has produced a column of desired trading positions per hour. However, these positions are not always achieveable due to a number of complexities: - is the trading hour during "trader sleeping times"? If yes, then the position is actually the last feasible position that was traded at "non-sleep" times. - have we actually hit a stop loss, which would imply the position should be 0 I provide a microsoft word doc that has a flow diagram that shows these cases. I also provide an excel sheet, which can be used as a test case (ie. consume th...

...electrical engineer or a related field expert with experience in digital multimeters and voltage measurement. I require a detailed block diagram for the 3458A Keysight DMM focusing on the voltage measurement component. This comprehensive block diagram should enhance understanding, identify potential design improvements, and aid in proper documentation. The task will specifically include: - Key focus on voltage measurement components and their role. - Comprehensive understanding and detailing of the Analog-to-Digital converter, Voltage references, and Internal Microprocessors. - The diagram should incorporate the range for low, medium, and high voltage measurements. (up to 1000V). Your background in electronics with a good command over digital...

I'm looking for an Odoo developer who can help me build a B2B grocery wholesale multivendor marketplace. We are launching a B2B grocery wholesale multivendor marketplace exclusively for the European market. The platform aims to connect major distributors, wholesale suppliers, and food manufacturers with grocery store owners, food retailers, and restaurant owners. The platform will be developed using Odoo 17 Enterprise on-premise (VPS) and customized using Odoo Studio Builder. # Key Features 1. Multivendor Capabilities: o Onboard various suppliers and buyers. o User Registration: Buyers and suppliers will apply for a portal account using their EU VAT ID. The platform will review, verify, and approve user details. 2. Product Management: o Suppliers can add and modify products,...

I'm seeking an experienced technician to install 1-5 Aruba Switches in my networking system. Ideal skills and experience: - Proven track record in Network Hardware Installation, specifically with Switches - Familiarity with Aruba brand - Ability to troubleshoot potential installation complications - Strong understanding of network security measures - Need to have following tools - Laptop (with RJ 45 port or have USB to RJ45 converter) - RJ45 Cable - Console Cable (a suitable port or connector for cable on the laptop) - Lable printer - Mobile phone with data for remote connectivity

...looking for a skilled and experienced professional to finish installing my Five Zone Blueridge Mini Split AC in my residential property. What has already been done: - Indoor ceiling and wall units mounted. - Drain lines ran (may need to be altered) - Electrical ran. Includes 40 amp breaker installed, 8awg wire ran to outdoor unit location and wires run to each unit. What needs to be completed: - 48000 BTU condenser mounted to the side of the house (brick). - Copper line sets run to each indoor unit (5 total). - Drain lines connected to indoor units. - Electrical wires connected to 2 indoor wall mounted units. - Electrical and line sets connected to outdoor condenser. - Line sets covered/protected on the out...

I am aiming to incorporate and enhance my Parent Company's policy and processes on IT asset management, with particular focus on the documentation process and IT Asset Management Workflow diagram (From registering the asset to retiring the asset). Key deliverables: 1. Provide a document that lists all relevant terminology used in the IT Asset Management Workflow document, including formal definitions and simplified definitions. These definitions must be aligned to Parent Company's terminology. 2. Provide a diagram that explains the desired lifecycle of IT Asset Management and how Cybersecurity, ICT Operations, Data office and Business Unit fit into this flow via clear RACI. This must aligned to Parent Company's lifecycle descriptio...

I need a youtube video downloader needed also converter of video format I need a script for it or developer for it

...passionate engineers in India to help me build an IOT product for home automation. Ideal Skills: - Electronic Circuit Design - App Development - Planning and Execution - Sales and Marketing Key Features: - Voice-controlled system - Remote access - Energy management - Home appliance control - Maintenance and communication among rooms Room Details: - The project will be suited for various house sizes, including 1-2 rooms, 3-5 rooms, and 6 or more rooms. Appliance Integration: - The system will need to work with both existing home appliances and new ones. This project is not just about building technology; it's about creating a solution that can be impactful and improve the lives of many. You need to be passionate about the field, have innovative ide...

...(Limited slots): Free In-Office Whitening and Spa Facials for all New Patients Tel: 202-800-0126 Use attached images for the design 1. Picture of the practice - "Sip & Smile with Free Cocktails" 2. Picture of a couple 3. Logo 4. Grand opening special: Free In-Office Whitening and Luxe Facial 5. Picture of Dr. Lynn and Dr. Ansari - get from 6. Address 618 T St NW Washington DC 20001 Next to the Howard Theatre - Free Parking 7. Use the printing company template attached 8. Add any other detail your think are relevant 9. Why choose us: Painless Sedation Dentistry, World Class Dentists, and Modern Technology 10. Services - - Preventive Care - Personalized care from Saliva Lab Analysis - Restorative care - Fillings Root Canals, Implants, ...

...experienced MULTISIM expert to assist with various tasks related to intermediate level circuits. Key Tasks: - Circuit design: You will be required to create circuit designs according to provided criteria and specifications. - Circuit simulation: Proficiency in simulating and testing designed circuits on MULTISIM is essential. - Troubleshooting and debugging: As part of the role, you will need to identify potential errors within the circuits and provide effective solutions. Requirements: - Proven experience with MULTISIM software is a must. - Strong skills in circuit design, simulation, and troubleshooting. - Previous experience working with intermediate level circuits is highly desirable. - Excellent attention to d...

...candidate should have a good grasp of circuit design, power system analysis, control system development, as well as experience in PCB design, Arduino, FPGA, Raspberry Pi, and Verilog/VHDL. Key responsibilities: - Circuit design, power system analysis, and control system development - Proficiency in MATLAB/Simulink for simulations and modeling - Expertise in EAGLE or Altium for PCB design - Knowledge of Verilog/VHDL for FPGA development This role might be a great fit for someone with an academic background in electrical engineering, a few years of industry experience, and a solid portfolio of relevant projects. The work is ongoing and offers a variety of tasks, so adaptability and a willingness to learn are key. The ideal candidate should be able to work in...

I am in need of a talented software developer who can create a desktop application that will primarily deal with data processing. The main purpose of this software should be to process Point Cloud and 3D Model data. If you're an expert in software development, particularly with experience in dealing with these types of data, your skills will be invaluable for this project. Ideal Skills: • Desktop application development • Strong understanding in data processing particularly for Point Cloud and 3D Model data • Problem-solving skills • Strong attention to detail - Knowledge about the components of structured point cloud data and their types (e57, rcp, fls, ptx) - Multithreading for data processing at the same time - Developing Graphical User Interfac...

We are seeking a skilled individual who can develop an application to simplify the process of downloading and converting an entire Gitbook into a single PDF file. The application should provide a user-friendly interface for me to easily input the Gitbook URL and initiate the conversion process. The PDF file should maintain the original formatting, including images, links, and text styles. The successful candidate should have expertise in web development and have experience working with Gitbooks and PDF conversion libraries. Attention to detail and the ability to deliver a high-quality output within the specified timeframe are essential.

I need experienced programmers for the Siemens 1500 series PLC based automation line in Divitipally Village, Mahbubnagar, Telangana, India. The tasks at hand will require you to: • Write code using the Structured Text and Function Block Diagram languages in the Siemens 1500 series PLC. It will be a significant advantage if you have an understanding of industry standards and best practices for these coding languages. • Develop functionalities to control motor speed, monitor temperature, and record production data. Expertise in designing and implementing these specific functions is a must. • Design a control system that can provide semi-automated operation for the entire automation line. This includes intricate knowledge of the components of the Sieme...

I'm in need of a professional to design an Analog Circuit, specifically an Op-Amp based bandgap reference circuit. Please provide a quote or your expertise is greatly appreciated. Op-amp and bgr circuit has been complete. just need help on the item below. - Create a layout of the op-amp circuit (no need to LVS) - Tweak the circuit to get desired temperature coefficient < 15 ppm/°C Ideal skills and experience: - Proficiency in Analog Circuit Design - Prior experience in designing Op-Amp based bandgap reference circuits - Understanding of precision and accuracy in circuit design - Ability to optimize output voltage levels

I'll do my best solving the circuit with all required parameters and provide detailed report within 6 hours.

...for Comprehensive Property Portfolio Management Tool!** Are you an Excel virtuoso with a passion for crafting intricate and comprehensive spreadsheets? We're embarking on a quest to develop the of a cutting-edge Property Portfolio & Financial position Management Tool for our discerning clients. If you possess the expertise to meticulously organize data, create advanced formulas, and design visually captivating presentations, this contest is tailored for you! Join us in revolutionizing property portfolio management with a document that sets the standard for clarity, accuracy, and usability. I would like to be able to edit if required in the future therefore 2 copies will be required. 1 being password and field protected and the other with full access...

I'm seeking a professional with extensive knowledge and experience in mixed-signal circuit design to assist with a project. The specifics regarding circuit components and the eventual application of the completed circuit are yet to be determined. Skills & Experience Required: - Expertise in mixed-signal circuit design. - Ability to suggest applicable components such as microcontrollers, signal amplifiers, and Analog-to-digital converters. - Ability to recommend applications for the mixed-signal circuit like Audio Processing, Sensor Interfaces, or Communication Systems. - Excellent communication skills to discuss further project details. The project's timeline, budget, and other key details are u...

...Canada)who can design and construct a prototype to a control DC motor machine Key Project Details: - Control: The machine consists of 6 DC motors. The prototype should be able to control and limit the speed of 6 motor independently and - Power: Replace power supply of the machine from 12V battery to 110 V AC adaptor - Interface: The control of these motors should be through a computer interface with software, which means your experience with coding and software development is crucial - Expertise: You should have ample experience working with Arduino and a strong understanding of how to manage and control multiple motors simultaneously Ideal Skills and Experience: • Proven experience with Arduino development and prototyping. &bull...

Hi Moueen A., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

I need an experienced PCB designer to create a comprehensive and easy-to-read EDA drawing of a 3.5kVa inverter. The design should include transistors, capacitors, and resistors. Key Requirements: - The design should be through-hole. - The PCB should be easy to understand and follow for assembly and troubleshooting. Deliverables: - The design should include a full assembly instruction so that a technician can follow it easily. - Please ensure that the design includes all necessary transistors, capacitors, and resistors. Ideal Freelancer: - Experienced with EDA software. - Capable of creating a through-hole PCB design. - Able to provide detailed project proposals. - Previous experience in designing inverter circuits is a plus.

I'm in need of an experienced Analog Circuit Designer to assist with the conceptual design and simulation of a prototype. - The purpose of this project is to develop a prototype, not for research or educational purposes. - I'm currently in the initial stage of prototype development, so we're focusing on conceptual design. - The major components of the analog circuit I need assistance with are transistors and timers. - I have a preliminary reference circuit whose functionality to be replicated with equivalent circuit. Ideal candidates should: - Have prior experience in analog circuit design for prototype development. - Be proficient in using simulation tools. - Have a solid understanding of transistors and timers. - Po...

I am in need of a comprehensive email list of US-based small business owners, founders, partners, and key C-level executives like ...metro area): San Diego, CA Los Angeles, CA Tampa, FL Nashville, TN Denver, CO Orange County, CA Scottsdale, AZ Salt Lake City, UT Palm Beach, FL Miami, FL Las Vegas, NV Orlando, FL Jacksonville, FL Fort Lauderdale, FL Austin, TX Dallas, TX San Antonio, TX Houston, TX Sacramento, CA San Jose, CA San Francisco, CA Naples, FL New York, NY Charleston, SC Charlotte, NC Raleigh, NC Atlanta, GA Washington, DC Philadelphia, PA Columbus, OH Boston, MA Seattle, WA Coeur D'alene. ID Please respond with the following: 1. Sample 2. Estimate count for each location 3. Whether you will verify the emails before delivery. 4. Source (zoom, apollo, scraping, e...