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    29,634 12v battery charging circuit работ(-а,-ы) найдено, цены указаны в USD

    need inverter source code in mplab or mikroc ,,,with lcd dis[play and all protection Skills: Electrical Engineering, Electronics, Microcontroller See more: pic based sine wave inverter, sine wave inverter pic, sine wave inverter projects, dsp sine wave inverter circuit diagram, dspic30f2010 sine wave inverter circuit diagram, dspic sine wave inverter, dspic30f2010 inverter projects, dspic inver...

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    Project for Mauricio C. 4 дней(-я) left

    Hola Mauricio, I have a few jobs that I would love you to help me with. If they are successful we can continue working together. I am building smart home product using a bluetooth mesh connection. First I would like to create a simple PIR sensor. After that I want to make a simple switch. These are going to be battery powered. I actually have a working schematic already for the switch a...

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    As of 20 November 2020 this project is still available. You do *not* need any experience. You do *not* need an Arduino. Also, you do *not* need an ESP32. If you are very intelligent and also solve engineering scientifically then I will pay you to learn C/C++ on Arduino or MicroPython on ESP32. You will help me build a consumer IoT (Internet of Things) product. Please read the section en...

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    As engineers, our role is to solve problems in society. The final project allows students to develop entrepreneurial mindset learning (EML) through project-based learning (PBL). The final project is a team project for up to 8 students. First, as a team, identify a problem in society, research how it is currently being addressed, include the associated costs, and size the market. Second, with your...

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    PCB board -- 2 1 день left

    Dear all freelancers i am looking for a freelancer to design circuit, i have written the circuit diagram and how things will be connected. freelancer to provide all the circuit design PCB drawing and layout and any file type that is required for the manufacture to make the PCB board, freelancer will require also to make the software for the screen to read measurement and display it on the sc...

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    We are building an electronically capable hair tie and looking for an engineer to collaborate with. Our product, Haloties, was designed and funded at MIT, and are looking to launch our prototype. We have created a flexible band, but need a basic IMU board with battery charging capabilities, waterproof protected, that can be clipped onto our hair band. We will not need a formal app design at t...

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    I would like to build a IoT solution to measuring battery life. Could be arduino based or any other small/miniature solution. Please contact me to more info.

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    Butterworth Design 1 день left

    My company is looking for someone who can complete the following design specifications. Design a 7-pole, low-pass, active butterwort filter with a 3-db cutoff frequency of 1kHz. Design a 6-pole, high-pass, active Butterworth filter with a 3-dB cutoff frequency of 1 kHz. You must design the resistances and capacitances close to standard values, and indicate the standard components (R , C) that ma...

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    Design of Lithium Battery Charger 23 часов(-а) left

    We would like to develop a CC-CV Charger for charging of lithium batteries Constant Current : The charger must charge at constant current up until defined Charging Voltage Limit Constant Voltage : The charger must charge at constant voltage till current drops below a predefined level The output CC-CV thresholds must be configurable Nominal System Voltage 48, 60, 72 V Charging Voltage 54.75, 69.35...

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    I need assistance in designing a wireless circuit instead of using electricity to charge a cell phone. The device will use magnetic resonance to power devices and power transfer would be as efficient and fast as conventional plug-in.

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    10 ставки
    Solving circuit problems 15 часов(-а) left

    Solving few circuit problems, circuit and signals, compensation method and so on

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    12v passive circuit 15 часов(-а) left

    Hi, would just like a circuit as simply as possible to wait for a flash of 12v .. if it gets the command 3 times within (2sec) it lets the 12v through / in effect the board is timing out every time it gets a signal - on a passive board?

    $166 (Avg Bid)
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    Power Electronics PSIM Sumilation 13 часов(-а) left

    I have an academic project where I need PSIM simulation and improvements in the circuit. Please note that you'll need to be expert in PSIM simulation and should understand the topics in Power Electronics - freewheeling converter, boost converter, and capacitor charge converter. Further instructions about the simulation are provided in the attachment. Maximum time allowable for the project - ...

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    Create and handle Billing Engine for VAS -- 2 12 часов(-а) left

    Handling the mobile services and value added services (VAS) including Operator Billing, SMS Strong knowledge in PHP and Web Technologies like JavaScript, AJAX, JQuery, HTML, CSS, and XML Strong in Object Oriented Programming and concepts Worked with MySQL databases Experience in Core PHP and frameworks CodeIgniter and Zend Knowledge of PHP CMS WordPress Good experience in all phases of Software De...

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    Project for Mohsin A. 3 дней(-я) left

    Hi Sir, I am taking electrical engineering and need some help with taking exams. I am in first year. Do you have experience with semiconductors, pn diodes, circuit analysis and some computer architecture.

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    Convert electrical image to CAD(1000~1500 images) 11 часов(-а) left

    I need to convert simple electrical circuit images into CAD file. Total 1500 images. I will pay per 100 images. 1$ per CAD file. Budget is fixed. So total 1500$ and timeline is 2months. AutoCAD 2016 must be used. Team is preferred.

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    I need a 2d payment gateway for fake charging with no charge back protection if the gateway is stripe than it will be awesome along with a donation website Professional people contact only this will be high balance charging gateway so you will work have to work on it in partnership no issue of payment we will earn money and share please only serious professional contact

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    Wireless charger design with atleast 10A and 12.6V output. 8 часов(-а) left

    I want someone who can design wireless charger circuit , which can give me output of atleast 10A and 12.6V. the current and voltage should be adjustable.

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    Preciso consolidar e aplicar melhorias a um protótipo de hardware eletrônico para leitura de sensores em uso remoto, que envia dados para internet. Componentes que utilizei: ESP32 com SIM800L integrado, conversor RS485 (MAX485), stepdown dc-dc, miscelâneas. Programei pela IDE ARDUINO. Integrei com supervisório remoto em nuvem que recebe os dados via post HTTP. Montei em ...

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    USB interface designed in AutoDesk Eagle with circuit analysis add-on. I'd like to be involved in each phase so I can learns and train my engineering team.

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    I have 87 product which need to be listed and optimised for Amazon SEO. The products are of iPhone & iPad screens, batteries and charging cables. The listing need to be optimised correctly as to ensure each listing is on pages 1 and 2. I have all the main images for each product and would require the other images within the product either created or sourced. An example of one of the pro...

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    Custom PCB design 1 час left

    Design a custom PCB with the following 1. arduino nano 2. Mcp2515 3. 12v to 5v converter 4. 4 irfz44n mosfet 5. Arduino Bluetooth module It should be 1 compact board consisting of the above items. The interconnection will be shared after the job is awarded. The PCB should be so designed which i can forward to PCB manufacturers for manufacturing.

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    Power Electronics SIMULINK Завершено left

    A 12 pules AC/DC converter and a grid-connected single-phase DC-AC converter simulation circuit need to be developed using MATLAB/SIMULINK and Power system toolbox. Refer to the attached PDF. Report need to explain and demonstrate understanding.

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    create energy from rock circuit to make digital avatar

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    Hello, I am looking for someone who is well versed with electronics. I am currently making an electric car, I have designed a circuit diagram. I need someone to convert this circuit diagram

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    PCB DESIGN Завершено left

    PCB DESIGN to suit, esp32 socket for installation of esp32 and two onboard relays with optocoupler activation 1 relay will be connected to and off-board SSR relay and the other to connect to 12V device. Possibly I would need the board to accept direct 220V connection and have two transformers onboard one to AC-DC 220VAC-10A to 12V ~2.4A and the next one 12VDC 5VDC step- down buck converter. Two ...

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    3D animation project Завершено left

    Power generation, storage, distribution and golf cart 3D animation: A 3D animation that demonstrates the flow of energy/power from the sun to PV panels, to battery storage, to lighting a building, to powering an electric golf cart (also has a PV panel on the roof). Power generation, storage and distribution 3D illustration A 3D animation that demonstrates the flow of energy/power from the sun t...

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    Power Buffer Завершено left

    I am a youtuber who loves electric unicycles. There is a problem however with electric unicycles where the power can sometimes be insufficient in certain conditions. I would like you to help me create a circuit which will be retrofitted to any electric unicycle in order to fix this problem which I will explain in detail later.

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    Need to write VHDL Code to implement a circuit design which is given in document. Compile code using ***Xilinx Vivada FPGA Development System*** **Must be an expert with circuit diagrams and writing VHDL code. **Must write a project report as well as stated in the given document.

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    Upgrade Tasmota with https and user authentication 6 дней(-я) left

    We need a arduino expert, who will modify a arduino standard firmware like tasmota. your tasks: - you buy the hardware and you assemble it to one unit - use 3 LEDs simulating a GPIO action - use two switches to provide a soft and hardreset functionality ...- a hard (all data erased to defaults after a very long press, e.g. 5 sec) ...- a soft reset functionality to restart arduino forced - you pr...

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    24v dc to 110v ac 2000va sinewave inverter circuit design, programme, schematics with pcb design needed

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    Digital Logic Design Project Завершено left

    Design a logic circuit that multiplies two 2-bit binary numbers and generates a 4-bit product which then will be displayed on a single 7-segment display device. A formal written report is required for this project.

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    make a functional circuit usin electronic workbench

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    • Design pneumatic circuit diagrams using BSI Fluid Power symbols for the controlled reciprocation of single and double acting cylinders • Design electro-pneumatic circuit diagrams for industrial applications using various electro-pneumatic components • Describe the operation of transducers for sensing displacement, strain, temperature, pressure, flow and acceleration .... 15$

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    Repair a curcuit board Завершено left

    To troubleshoot a problem in circuit board where output is not coming . Power switching ON VERY LATE WAS THE INITIAL PROBLEM.

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    Solar Calculator -- 2 Завершено left

    The idea of this project is to calculate the solar savings for a customer with solar panels and also if selected battery. Please check the calculator to replicate it: [войдите, чтобы посмотреть URL] Same workflow is expected from the above calculator. Please suggest your similar work and offer.

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    Create a logo Завершено left

    Create a logotype for a newly started company offering charging solutions to electric vehicles. Company name: Eneva

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    Powerful Phone Cleaner - Cleaner & Booster is a professional cleaning app, including cache cleaner, junk cleaner, storage cleaner, notification cleaner, free up RAM, free up space, CPU cooler, battery saver, game booster, phone booster for Android system Remove all unwanted files at once – Search and junk cleaner – Search and clean up similar gemini photos – Search and clean...

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    I have a wordpress website [войдите, чтобы посмотреть URL] and would like to do the following: I'm selling batteries and want to have a QR code printed on a sticker on my batteries that I sell and whenever it is scanned it will lead to a link that shows some basic information on the battery like manufacture date and some other data. The idea is to have each link look like [войдите, чтобы пос...

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    electronic project Завершено left

    to create music interface as below : 2 input with individual volume control - 1 for guitar/keyboard input - 1 for backing track music treble and bass controller - 1 output to the phone for recording/ live streaming - 1 stereo output for headphone/monitor speaker preferably using 18650 battery with usb 5v input/charging please refer to the attachment

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    Hi Cong D., To develop a Bluetooth remote control unit include the circuit board which will include the ESP32 board, the buttons to press and to send to the ESP32 board the signals, perhaps through GPIO send the board/PCB. send to manufacturing and test it. The buttons will be like that you have on your DVD player and TV. Also should have a button to select the device to connect to. You just d...

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    Long distance composite video transmitter & multi receiver Overview: Plan to place outdoor cameras around a lake in areas with no utilizes. The cameras and broadcast equipment will run on solar and battery power. These cameras will not always be line of site and could be 50 miles away from the base station. I am expecting parts budget for each transmitter to be close to $200. I ...

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    Integrated circuit Завершено left

    I want to create a integrated circuit chip for wireless earbuds that is able to detect sounds, same pattern from a distance and it alerts the user via buzz or beepS when it detects the sounds. I work with the disabled and want to use natural animal and bird sounds to make my patients feel better.

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    I have components and need to come up with a design to hold to solar panels, battery, battery enclosure, cameras and pole either in three parts of telescopic that is very sturdy and solid in the wind. Also needs to be a design that easily is erected I will send all the components through as links and I expect the winner to help me engineer a good design

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    Goodmorning everyone, I need to power a 3.7V MCU (aTmega 328P) and I have a 12V battery. The MCU is 90% of its time in sleep and consumes 990nA. I have to maintain a low standard of consumption in the order of nA or uA. Thanks

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    We need a nice futuristic illustration of an battery pack and a visualiation of a KERS System. Ideas can be sent to the Freelancer

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