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    5,000 modulation circuit dc powerlines 仕事が見つかりました。次の価格: USD

    I am in need of a skilled engineer to design and develop an off-board charger for my e-bike. The charger should be designed for an input voltage of 220V and should be capable of outputting 48V to charge the e-bike. It should also incorporate key safety features: - Short circuit protection - Overheating protection - Overcharge protection The ideal freelancer for this project should have an extensive background in electrical engineering and practical experience in designing and developing off-board chargers for e-bikes. Proficiency in safety standard protocols is also necessary. You should also understand and implement the necessary regulations and standards related to designing e-bike chargers.

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    I'm in need of an individual skilled in Verilog who can help me achieve a specific task. - Task: Yo...writing Verilog code for a simple module implementation. This does not involve complex system level code designs or CPU architecture. - Objective: The primary objective of the module is to model a specific digital logic circuit. The project does not require interaction with other modules or utilization of specific hardware components. The ideal candidate would possess: - Solid experience in Verilog coding, - Expertise in digital circuits, - Strong understanding of digital logic circuits, - A meticulous approach to ensure accuracy in modeling the required digital logic circuit. If you are passionate about Verilog and love challenges, this project could be a perfect ...

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    Lighting Automation 6 日 left
    認証完了

    ...proposals. More details: Smart home. The smart home system has the following parts. Transmitter Several buttons are connected to the ports of an Arduino Pro Mini. When the respective button is pressed, and the gate goes low, a signal is sent to the receiver. The signal is sent with LoRa. (RFM95 433MHz) The transmitter is powered by 3 AAA batteries or an equivalent battery. The power circuit is replaced with a circuit that draws very little power. see this video Create a Gerber file for the PCB. Receiver The receiver is an ESP32 Node MCU with both WiFi and LoRa. for example Heltec WiFi LoRa 32(V3). The receiver has relays, dimmers for led lights, (possibly a camera) and a button to pair the device. Power from USB. Cost of Gerber file is reported

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    I am seeking a proficient AutoCAD designer with exemplary skills in electrical design. In this role, you will be tasked with: - Designing an electrical circuit - Creating an effective wiring layout - Developing a functional panel design Your work will contribute to a small-scale project and will require a keen attention to detail. Skills in detailed, precise design work and experience with similar projects are crucial. Please note, I require the use of AutoCAD 2017 .dwg for this project. Familiarity with this software version is essential to your success on this project. If you feel these tasks align well with your expertise, I encourage you to apply.

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    English: I am seeking an electronics expert to develop a custom Printed Circuit Board (PCB) for a DC-DC Step-Up Boost converter with the following specifications: Input Voltage: 20 to 30V Output Voltage: Adjustable from 35 to 52V Current: Support up to 8A Specific Requirements: Maximum Voltage Adjustment: The board must include a method for adjusting the maximum output voltage limit. Current Limit Adjustment: Implementation of a system for adjusting the current limit through a 0 to 3.3V input signal, where 3.3V corresponds to the maximum limit of 8A. Shunt Resistor and OPAMP: Incorporation of a shunt resistor with OPAMP, including potentiometers for fine calibration. On/Off Function: The board should allow the option to switch between input voltage (off) and amplifie...

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    Basic Circuit Board Creation 6 日 left
    認証完了

    ...with expertise in creating basic circuit boards to help with the development of a new product. We will have 15 led lights that can illuminate normally or flash. They will light in different sequences. Ie Light 1 flashes and light 5 lights. Then say light 3 illuminates and light 3 flashes etc. The idea is to have an app made to manage / send the info for the sequences, I need someone to create the circuit board with the lights so that we can connect to a mobile app. Key aspects of the project include: • The creation of a circuit board design that supports integrated circuits • The product is in its developmental stage, requiring your input and creativity Ideal skills and experiences: • Demonstrated experience in designing and developing basic ...

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    I am in need of an Electrical Engineer who has hands-on experience in designing bus bars for high current systems. I have a project that involves the creation of a copper bus bar capable of carrying 1000 Amps DC used to connect various electrical components. Key requirements include: - Bus Bar Material: The prime material for the bus bar should be copper due to its excellent conductivity. - Connective Capability: The bus bar's prime role is to serve as a conduit to connect different electrical devices. It must be expertly designed to efficiently distribute high voltage. - Heat Resistance: Given the high current passage, the bus bar should withstand high-temperature conditions without any compromise on performance and safety. I am keen on working with someone who can bring ...

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    I'm in search of a highly qualified professional voice-over artist. This project is for an advertisement, requiring a smooth and sophisticated style. Key project requirements include: - Proficiency in ...Skill sets and experiences that will enhance your candidacy: - Extensive experience in voice-over work, with a particular focus on commercial advertising - Comfortable delivering content in a style that is professional and polished - Strong command of language and excellent pronunciation skills - Male vocality and a knack for accurate intonation This role demands precision, a keen ear for sound modulation and inflection, and a dedicated approach to delivering quality results. Align the energy of your voice with my mission and help make a captivating and compelling commercial...

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    ...small-sized custom Printed Circuit Board (PCB) with integrated ESP32 and DRV8833 motor control drivers and 18650 rechargeable bttery. - PCB Size: The PCB should be small-sized, built with quality and precision, and space-efficient. - Motor Control: It needs to control a DC Motor using DRV8833 motor driver, ensuring optimal performance and minimal signal interference. - Voltage Range: The PCB should be designed to handle an input voltage of 5V, ensuring it's safe and efficient. - Battery: The design should incorporate a rechargeable battery without compromising the compact size. The ideal candidate should have proficient skills and experience in PCB design, electrical engineering, and ESP32 integration. Knowledge of motor drivers and familiarity with power-efficient...

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    I'm seeking an expert electronics engineer to design a circuit for an Arduino-based, battery-powered hand warmer device. This design must incorporate intelligent functionality for temperature and run-time control. Key requirements are: * The device should warm up to 42°C and maintain this for one minute. After that, it should shut down and take a break for an hour (this cycle to repeat continuously). * The unit must have a maximum temperature limit of 45°C. * There should be a 0.96 inch OLED screen displaying temperature and time status. * The design should include push button control to start the skin warming and once the push bottom pressed again the program should quit off the warming cycle . * Using Normally closed temperature switch 45 deg. as safety feature ...

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    I'm looking for an expert in motor control systems who can help me synchronize two 24V DC motors to improve efficiency. The project involves designing and implementing a physical interface to control the motors. Ideal Skills & Experience: - Extensive experience with DC motors - Proficiency in motor control systems - Knowledge of physical interface design - Experience with handheld remote control systems Your Role: - Develop a way to synchronize two 24V DC motors for increased efficiency - Design a physical interface to control these motors - Ensure the system can be operated through a handheld remote control - Validate the system's performance and efficiency.

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    I'm looking for an experienced full stack developer, particularly strong on the front-end, to create a web-based platform that simulates lab experiments focusing on Electronic Devices. Key Features: - Simulation of lab experiments specifically in the sector of circuit design and analysis. - Quiz section for each experiment Experience and Skills Required: - Extensive experience with Front-End development - Proven track record in creating interactive simulation applications The goal of this project is the realistic simulation of lab experiments conducive to a virtual learning environment. Relevant experience is essential. Please provide details of similar projects completed. Looking forward to collaborating!

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    As an electronics enthusiast, I'm seeking a proficient LC Spice user who can conduct comprehensive analog circuit simulations. The attributes of an ideal candidate are: - Proficient in LC Spice for circuit simulation. - Understands analog circuits and how to effectively simulate them. - Capability to perform frequency analysis, transient analysis, and AC/DC sweep in the simulation. Your aptitude in these skills and tasks will contribute significantly to the success of this project. Familiarity with electronic component analysis and voltage/current measurements is a huge plus. I look forward to working with a professional who shares my passion for electronics.

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    i just need a small circuit board design for my esp32 to sit in, and some pads for soldering wires. See diagram.

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    My project requires a proficient individual to create a PCB design using Altium Designer. The task specifically details: - Crafting a moderate complexity circuit, encapsulating 10 to 50 components. - The construction of a double-sided PCB. The ideal candidate should possess: - Proficiency in Altium Designer. - Previous experience with designing circuits of moderate complexity. - Relevant experience in creating double-sided PCBs. Please provide samples of previous works if possible. This will be a great opportunity for those with the right skill set. Looking forward to your responses.

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    I'm seeking a proficient electronics engineer to design a PCB board for a control system project. The PCB board needs to integrate key components: - A GPS Module - An ESP32 Microcontroller , Internet-POE ESP32 project is actually started, we already have the autium files with dimmension, but is full of mistakes. As an experienced professional in circuit design and prototyping, you will be tasked with ensuring these components are integrated seamlessly. Particularly, extensive knowledge in microcontrollers and GPS modules is essential for this project. The ultimate goal is a reliable and efficient PCB board for our control system.

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    Design PCBA 3 日 left
    認証完了

    Just design a single bulb led circuit board/driver/ module. Plugged into a 12volts motor vehicle USB port.

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    I'm seeking a Hindi dubbing artist to provide voiceover for my less than 5-minute-long horror video. Key Responsibilities: - Translate the original script from English to Hindi. - Capture the mood, emotion, and intensity of the content. Ideal Freelancer: - Must have experience in Hindi dubbing, especially fo...5-minute-long horror video. Key Responsibilities: - Translate the original script from English to Hindi. - Capture the mood, emotion, and intensity of the content. Ideal Freelancer: - Must have experience in Hindi dubbing, especially for horror content. - Proficiency in English to Hindi translation. - Excellent verbal communications skills. - Ability to recreate the terror ambiance through voice modulation. Please provide examples of your previous Hindi voiceover wor...

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    I'm in the process of integrating a temperature sensor into a PCB circuit. Accomplishing this task requires in-depth knowledge and experience in programming in C++, Python, and Assembly language, as well as a deep understanding of both circuit design and sensor integration. Key requirements: - Proven experience in PCB circuit design, more specifically with sensor integration. - Proficiency in programming languages such as C++, Python, and Assembly language. - Detailed knowledge of temperature sensors and how to integrate them successfully into a PCB circuit. Your task would be to design a PCB circuit that integrates a temperature sensor while meeting the project requirements and timeframes. Interested specialists should demonstrate their history ...

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    I'm in need of a power electronics designer, proficient in designing power efficient modules for industrial environments. I'm working with an EC200U 4G module that runs on 3.8VDC, along with other peripherals that require 3.3V. The input power for the system lies in the range of 12-18 VDC. The power management circuit designed should: - Regulate Voltage: Ensure the voltage received by the EC200U module and peripherals is maintained precisely at their required levels. - Provide Battery Backup: Ensuring constant supply of power to the 4G module even when the main power source is unavailable. When main power is available, the battery should be charged and system is power from main power. Suitable candidates should have prior experience working with power electronics desi...

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    I am in need of an expert in PCB reverse engineering, with a primary focus on the component identification. For this project, I possess a physical circuit board, however, I'm unaware of what components have been used in it. The main goal is to identify these elements and their interconnections. Skills & Experience: - Profound knowledge in PCB circuitry and components - Experience in reverse engineering projects - Capability to work with physical PCB boards - Strong attention to detail in identifying unknown components Deliverables: - A detailed list and diagram of identified components and connections on the PCB.

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    ...who can design a small circuit board (less than 2 inches). The board must utilize the Bluetooth audio master module I've sourced and support some basic Bluetooth pairing functions. Key Features: - Audio playback (via bluetooth module feasycom BT955) - Power management with 3.3V or applicable rechargeable battery and USB-C charging functionality - Button to scan for local Bluetooth devices - LCD display showing a list of devices - Buttons that give the ability to select a device from the display/list for pairing and pair to it - Button to reset the module/pairing - The bluetooth module will be set to HFP mode and support in/out audio from bluetooth headphones back to a wired in/out connection on the board. The professional I'm seeking ideally has experience with cir...

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    I want to migrate a specific C# application to Xcode for MacOS Sonoma (14.4). This app is responsible for controlling a programmable DC Power Supply and this functionality must be maintained in the new version. Key Requirements: - The interface should emulate the layout of the current C# app - Must preserve the specific voltage/current settings from the original application Ideal Skills: Freelancer(s) will have a proven background in both C# and Xcode, with a focus on porting between platforms while maintaining functionality. Knowledge of programming for DC Power Supply control via the built-in UART would be a huge plus. The ability to recreate specific layout designs in Xcode is also crucial.

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    Interval Workout Circuit Design 3 日 left
    認証完了

    I'm in search of an expert in electrical engineering to create a unique circuit for timing a workout routine. The designed circuit should be capable of timing cardio exercises and strength training intervals for a seamless exercise regime. Key requirements are: - It should provide a signal for 1 minute of green light functioning as "exercise on", and 30 seconds red light acting as "exercise off". - This signals should be repeated cyclically until manually stopped. Ideal freelancers should have experience with circuit design, timing mechanisms, and they should have an understanding of fitness equipment or similar projects. This project offers an exciting opportunity to adapt traffic light technology for fitness purpose. If you're look...

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    This project includes the control of a simulated Air Handling Unit and Compensated heating circuit. The 230V AC ‘Air Handing Unit’ (AHU) fan in this project shall be controlled using a VSD. A green ‘AHU Fan Running’ light on the front panel shall indicate if the fan is running. The operator should be able to set a desired speed of the fan on the HMI. The fan may also be controlled by a ‘Filter DP’ potentiometer at the front panel of the board. The potentiometer is being used to simulate a filter dirty condition, with an increase in resistance indicating an increasing filter dirty condition, thereby increasing the speed of the AHU fan to compensate. If there is a VSD fault, the AHU system should stop operating, and a red ‘VSD fault’ li...

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    ...standards for both indoor and outdoor installations. Sizing and bracing calculations for copper busbar systems to ensure compliance with project specifications and industry standards. Develop assemblies, weldments and sub-assembly drawings and parts details with associated indented bill of material(s) for Low Voltage metal enclosed and metal clad switchgear. This includes assemblies containing circuit breaker, interrupter/disconnect switches, and cable support mounting details. Prepare equipment plan, elevation, side, and cross section views, and lifting details. Create component arrangement drawings based on electrical bill of material. Other assigned duties. Skills: High-level of competency in AutoCAD (knowledge of Inventor or similar software a plus) Well-versed in MS Of...

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    ...expertise in several key areas: - Circuit Design: This is central to the task. The hired professional will need to be capable of designing intricate power circuit systems that support my project's unique requirements. - Electrical System Analysis: I also require someone who understands the intricate details of electrical system analysis. You should be capable of assessing the viability and efficiency of the designed circuits, implementing changes if necessary. - Troubleshooting and Repair: There may arise situations where developed systems don't function as expected. Hence, problem-solving skills and ability to execute effective repairs are crucial. - Use of AutoCAD: Experience with AutoCAD is obligatory for this project. I expect the resulting circuit...

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    I'm searching for a talented female voice-over artist with a charming, warm and friendly tone. The project involves creating a voice-over for an explainer video. Your sound should help make the information relatable and easily digestible for listeners. Key Requirements: - Exper...creating a voice-over for an explainer video. Your sound should help make the information relatable and easily digestible for listeners. Key Requirements: - Experience in voice-over for explainer videos - Ability to deliver a British accent - Capable of speaking in a warm friendly tone - High quality, clear recording capabilities If you're passionate about making information engaging through your modulation and tone, I want to hear from you. Your voice might be the one we need to bring our expl...

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    I need an electronics designer to create a circuit board for me. The project entails designing a compact round circuit board to get power from a small solar panel for the sole purpose of recharging a rechargeable battery, such as the LIR2032, ML2032, or ECR2032. The selected candidate should provide comprehensive documentation detailing the circuit's design, functionality, and rationale behind design choices. Key Requirements: 1. Solar Power Integration: The circuit board should utilize solar energy from a small-sized solar panel. 2. Battery Compatibility: The designed circuit board must be compatible with rechargeable batteries such as LIR2032, ML2032, or ECR2032 3. Documentation: Thorough documentation covering the circuit's schematic, layout, an...

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    Pcb designer with knowledge of circuit diagram and sensors

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    I need a skilled and experienced PCB designer who will focus specifically on product development for consumer electronics. This project involves a moderate level of complexity as it requires a standard multilayer PCB. The tasks expected to be conducted are as follows: - Mainly taking up PCB design tasks and associated BOM - Partial involvement in circuit design An ideal freelancer would have prior experience working with PCB designs in the consumer electronics field. Expediency, precision and a keen eye for detail are vital as the developed prototype will directly contribute to a physical product. The project is a signal converter and i can attach a video of its funtion. Due to my limited software i need to add 2 more ICs: A voltage regulator and a bandpass filter at the highlighte...

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    I'm currently in pursuit of a skilled Electrical Engineer with a hallmark in Mixed-Signal Circuit Design. The primary task at hand will be to assist in finalizing the design specifications of a Mixed-Signal Circuit I have partially completed. Key roles will include - Reviewing my current circuit design - Advancing the existing specifications - Finalizing the Mixed-Signal Circuit Design -I need some calculation that my project is success - Actual measurement The perfect candidate will possess the following skills and experiences: - Extensive experience in Mixed-Signal Circuit Design - Mastery in Electrical Engineering - Proven track record in assisting with design specification finalization - Astute attention to detail Your counsel and execut...

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    I am seeking a proficient el...primary function of this microcircuit is switching between two circuits, not to amplify signals. We need to present a 5.1K GND to one of two GPIO pins on an MCU depending on the state of sensor output that throws a 5V high/low output on one single line Key Project Details: - The circuit should be designed to operate at low power levels to minimize power dissipation. - The preferred material for the transistor is Silicon. Ideal Skills and Experience: - Electronics engineering - Transistor theory - Circuit design and analysis - Experience working with silicon transistors and low voltage systems Your bid will be more competitive if you can provide examples of prior experience designing and building similar silicon-based low voltage transist...

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    Design and build a sine wave signal generator. The specifications are as follows: - Sine wave output in the range of 40.0-50.0kHz. User adjustable via potentiometer. - The maximum output voltage 20V. - You select power supply (110VAC 60Hz to DC). - BNC output connector. - 3-digit frequency display (plug into PCB via a socket). Design circuit, create PCB layout and manufacturing files, and arrange for 4 PCBA prototypes to be built and shipped to me in the USA.

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    I'm seeking a Hindi dubbing artist to provide voiceover for my less than 5-minute-long horror video. Key Responsibilities: - Translate the original script from English to Hindi. - Capture the mood, emotion, and intensity of the content. Ideal Freelancer: - Must have experience in Hindi dubbing, especially fo...5-minute-long horror video. Key Responsibilities: - Translate the original script from English to Hindi. - Capture the mood, emotion, and intensity of the content. Ideal Freelancer: - Must have experience in Hindi dubbing, especially for horror content. - Proficiency in English to Hindi translation. - Excellent verbal communications skills. - Ability to recreate the terror ambiance through voice modulation. Please provide examples of your previous Hindi voiceover wor...

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    I am looking for a professional who can develop a controller for a 24V DC VSD pump and a 24V AC (0-10V) mixing valve. This setup requires an analog voltage control interface (0-10V). The contractor needs to have: - Experience with control system design, particularly with mechanical systems. - Understanding of analog voltage control. - Hands-on experience with the specified pump and valve models. Technical knowledge of these components is key. This project will entail interfacing control systems with the selected hydronic pump and mixing valve models. Prior experience with similar projects is a plus.

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    Simple PCB Design from Sketch 1 日 left
    認証完了

    I require a professional to design a basic single layer PCB prototype using KiCad software. The design has to be brought to life from an existing drawing. Ideal Skills And Experience: - Proficiency in KiCad software for PCB design - Experience in creating basic single-layer PCBs - Understanding of circuit prototyping This is a rather straightforward assignment for someone with the right set of skills and experience. Your role will be instrumental in developing the prototype that forms the backbone of my product. Accuracy and attention to detail in your work are paramount, as the PCB layout will form the foundation of the final product. If this matches your skills and experience, I look forward to your proposals.

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    I am actively seeking an expert in IRSIM and LTSPICE for a small task

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    I am seeking an electronics engineer with deep expertise in circuit design, specifically mixed-signal circuits. Your Responsibilities: - Crafting and optimising a mixed-signal circuit design. Please Note: - Only those who provide detailed project proposals will be given serious consideration. Possessed Skills: - Extensive knowledge and experience in mixed-signal circuit designs. - Proof of similar projects will be highly appreciated. Your detailed proposal will make a significant difference in my decision. I'm excited to work with a professional who can deliver a state-of-the-art design.

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    Industrial Adjustable Cycle Timer Design 19 時間 left
    認証完了

    ...- Strong knowledge of user interface design. By combining these features, the timer will optimally control the fan for specific periods, allowing for customization according to industrial needs. The end product should be robust, user-friendly, and suitable for an industrial environment. The plastic housing has already been concept designed. I need an estimate for the total cost of circuit design and possible PCB layout. I need to provide my customer with a quotation to get a solid purchase Order before starting the project....

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    ...manufacturing services (cables, PCBAs, sheet metal & Box Build), and we are looking for an experienced B2B Telesales, Appointment Setter & Business Development professional that can do regular cold calling to set up appointments for our Sales team to create new business relationships in the USA for OEMs requiring Contract Manufacturing Services (outsourced manufacturing) for Cable Assemblies, Printed Circuit Board Assemblies and Sheet Metal. Experience is sales, cold calling, list building and appointment setting is required. Your Main Duties: - List Building (with help from a list building service) - Cold calling B2B target OEMs in the USA. Targets will be senior execs in Supply Chain, Purchasing & Engineering management positions. - Generate, qualify, and develop l...

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    Compact PCB Design & ESP32 Firmware 2 時間 left
    認証完了

    I need a PCB with 7 5x7 displays with output via a DS Olimex type connector. It will be connected to an ESP32 board to control these displays and show alphanumeric characters. I need a quote for designing the circuit and the PCB layout in Altium. And I need a separate quote for the firmware to use on the ESP32 for control. I was thinking of using 74hc595D for controlling the displays by multiplexing. The power input for the display board needs to be 12V, and include a circuit to control the current and keep the LEDs on or control via PWM from the ESP32; I'm open to the designer's suggestion. I'm looking for a fixed price quote.

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    ...functional prototype should have experience in embedded system development but also possess specific skills in in-circuit debugging and a thorough understanding of the Modbus(485) protocol. I'm particularly interested in candidates who are recent graduates with a strong analytical mindset and a passion for embedded systems. Project Status: Advanced stage with a functional prototype firmware already developed. Immediate focus on refinement, debugging, optimization, and real-world application testing. Applicant must be located in Ho Chi Minh City, Vietnam. Qualifications: Strong skill set in C programming for STM32F3xx. Proficient in in-circuit debugging techniques. Solid understanding of the Modbus communication protocol. Eager to tackle complex problems...

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    I'm in search of an experienced electronics engineer for the design and realization of an AR/VR helmet. Primary Responsibilities: - Circuit design: Originating robust, effective circuits for the helmet's functionalities. - PCB layout: Responsible for layout design and prototyping. - Testing and Troubleshooting: Will include comprehensive testing of all functionalities and necessary troubleshooting. Helmet Requirements: - Motion Tracking: It must have competent tracking to ensure an immersive user experience. - 360-degree Panoramic Display: Ensuring an engrossing visual experience for our users is crucial. - Wireless Connectivity: The helmet must function wirelessly for maximum ease of use. - Integrated Retinal Recognition: An additional security feature to enhance th...

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    I'm in need of an expert electrical engineer to design a 200 volt DC to 200 volt AC 1500 watt converter. This converter will be an integral component for a stand-alone solar power system, intended to facilitate efficient solar energy conversion for household usage. A successful applicant will ideally possess: - Demonstrable expertise in Electrical Engineering - Prior experience in designing solar system equipment - In-depth understanding of voltage converters Deliverables: - Detailed schematics and plan for the converter - List of materials needed for production - Estimated production time and cost Your application should include: - Your credentials in the field of electrical engineering, particularly with similar projects - Any prior work on converters or solar systems, w...

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    I am looking for someone to produce some electrical circuit diagrams in EPlan. The actual design is complete and they need to be put into EPLan. BOM is already complete. Also looking for panel layout, both backplate and front panel, in 2D and 3D The panel is basically a PLC control cabinet with some pushbutton, indicators and HMI. I live in Gloucester, UK and I am ideally looking to work with a local person

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