12v battery charging circuit jobs

I have the design ready. Will provide once selected. Basically, the sensors need to be rainfall, temperature, humidity, moisture, ph and npk. There will need to be a cellular nano sim card slot, battery etc. I am looking for someone who can assemble the device and give a complete prototype

I'm looking for a talented and experienced professional to design a circuit with an analog component for a specific application. The complexity of the design is on an intermediate level and requires a well-developed understanding of circuit & PCB design and engineering principles. The ideal candidate must have prior knowledge of analog circuit design and understand how to develop efficient circuits. They should also have a good understanding of mixed-signal designs and their applications. The project will require designing a circuit with an analog component that is appropriate for the use case and application. The successful applicant should be able to analyze the design specifications and provide a solution that meets the requirements. I'm loo...

I am seeking assistance with the understanding of quantum algorithms in the field of quantum computing and Quantum learning algorithms. There are no specific programming skills required for this project, and my desired outcome is a deep understanding of paper regarding Quantum learning algorithms and circuit lower bounds. This project could potentially involve developing new algorithms and optimizing existing ones, but the main objective is to expand my knowledge on the subject.

For Installers: - Operate a marketplace specifically designed for charger installers - Offer a charger management system to help installers manage their client relationships - Utilize an installer application to streamline operations For Customers: - Provide a user-friendly platform for comparing the values offered by different installers - Enable e-commerce capabilities for purchasing charging-related items For Enterprise Users: - Supply system management software tailored for enterprise needs After-Sale Services: - Engage in after-sale activities to maintain customer and installer satisfaction For Installers: 1. Marketplace Development: - Language: Preferably JavaScript with Node.js backend

Hi there, I'm looking for an experienced engineer to help me design a diode with a voltage rating of other (please specify) and a current rating of 2A with a material preference of Silicon. The successful applicant should be knowledgeable in circuit design with experience in designing diodes for various applications. A strong focus on quality and safety is required. Communication is very important and the candidate must be willing to meet tight deadlines. If you think you're up to the task, I'd love to hear from you. Thanks!

Display of the result of stress and strain. Its based on stress and strain analysis of SEI layer in Li ion battery .

I am looking for a skilled freelancer who can help me with a nano printing project. The desired outcome of the project is to print the holy bible on a nano chip. Skills and Experience: - Experience in nano printing and working with nano chips - Knowledge of circuit design and printing techniques - Ability to work with specific design requirements - Proficiency in working with silicon and metal materials for the chip

Camping equipment, glamping, bushcraft, rocket stoves with TEG generators for charging and lighting, off-grid technologies, transportation and mobile shelters. I need an experienced affiliate marketer to help me set up some affiliate marketing for the above and related products.

...compromising aesthetics. 4. **Decorative and Accent Lighting:** - Propose options for decorative lighting elements that can enhance the landscape's features and add visual interest. **Execution Documents:** - Provide comprehensive documentation that includes: - Detailed design blueprints. Shopping list of lights or anything else needed from international stores or amazon - Lighting circuit diagrams and installation guidelines. - Irrigation system blueprints and operational instructions. **General Guidelines:** - Adhere to local building and environmental codes to ensure safety, sustainability, and legal compliance. - Before finalizing any design decisions, they should be discussed and approved by the homeowner to ensure alignment with personal preferences...

Circuit Code Bom Video explanation For charge controller design

Looking for an Electronic Engineer that has some experience building configurable Charge controller or has one they built already that can give me a base. We will be charging a variety of batteries based on solar array

I need a simple circuit diagram for a Gigabyte POE 1 to 1, please use the following components bids are finally, please don't tell me later you want more money i really don't like this tactic, its very unprofessional.

...microcontrollers needed to bring our device to life. Circuit Design: Create detailed circuit schematics and PCB layouts to support the functionality of the device. Prototype Development: Build functional prototypes of the device, integrating all hardware components and ensuring proper functionality. Testing and Optimization: Rigorously test the prototypes, identifying and addressing any hardware-related issues. Optimize the design for performance, durability, and child safety. Documentation: Provide comprehensive documentation of the hardware design, component specifications, and assembly instructions. Requirements: Proven experience in hardware engineering, with a focus on embedded systems and device prototyping. Proficiency in circuit design, PCB layout, and...

Attached PDF contains full details, images of existing branding, etc...I would recommend reviewing that if you plan on submitting deliverables. The objective of th...exact font sizes and weights for web and print - letterhead template - business card template - powerpoint template - email signature About the Company The Green Transportation Group () provides zero-emission and eco-sustainable freight transportation solutions. This includes: - operating a fleet of electric and hydrogen-powered delivery vehicles, - building out charging infrastructure and distribution points throughout major freight corridors, and - providing thought leadership and expert advisory services to companies needing to improve their Environmental, social, and governance (ESG) efforts.

Hi Philipp, Would you be interested in providing me with five Can-Bus shield assembled boards: - LORA32 868/915Mhz Module SX1276 ESP32 with Oled-Display - GPS with external antenna (connector) - GSM/GPRS with external antenna (connector) - SD card to save offline - a toggle button to set the mode to Rx/RxTx on the bus - power from the can-bus (if possible; if not, from battery) - two RGB LEDs (Power and Mode) - form factor set to a reasonable minimum You would provide me 5 working boards and the a test-code to test all functions of the device. The boards will have the development name "EFFORD AG" and the model name "arCan pro" Due date has to be 2023. Knowledge pool: -

I am looking for a freelancer with expertise in electronics to assist me with a prototype design project. Skills and Experience: - Experience in electronics and circuit design - Proficiency in using CAD software for creating electronic schematics and PCB layouts - Knowledge of component selection and sourcing - Ability to follow specifications and requirements for the prototype design - Familiarity with testing and troubleshooting electronic circuits Project Scope: - The project involves creating a prototype design for a specific electronic device. - The desired outcome is to have a functional prototype that meets the specified requirements. - The client has provided a list of specific components and materials that should be used in the prototype. - The freelancer will be respons...

I have a project that aims to optimize the power distribution of a lithium-ion Electric Vehicle (EV) battery by using a specific algorithm. It will seek to find the most efficient and reliable combination of hybrid energy sources such as photovoltaics (PV), wind energy, and diesel. The goal is to ensure a balanced frequency, voltage and reactive power without compromising ability or performance. To achieve this, I would need a solution that is tailored to specifically suit the current needs of the EV and the surrounding environment. Understanding the current status of the battery’s components - such as its storage capacity, how much energy it requires, and how much load it can handle - are essential to make an appropriate algorithm to meet the desired outcome. I need someo...

...Image Quality: Capture stunning, high-resolution photos and videos with the Nikon D3500's 24.2-megapixel sensor and EXPEED 4 image processor. - Extended Battery Life: With its efficient power management system, the camera offers long-lasting performance, allowing you to capture more moments without worrying about running out of battery. - Portability at its Best: Weighing just under a pound, the Nikon D3500 is incredibly lightweight and compact, making it the perfect companion for your photography adventures. Product Description: Introducing the Nikon D3500, a powerful and versatile camera that delivers exceptional image quality, extended battery life, and unmatched portability. Capture every detail with the camera's impressive 24.2-megapixel sensor and...

...help with a project that involves wiring (4) 12v 3pin illuminated toggle switches for On/Off control of a single common circuit. Each of the 4 SPST toggle switches can independently or jointly control the load which is the circuit attached between the Phidget Input Pin and Phidget ground. The state, when any toggle switch circuit is in the ON position (CLOSED), the Phidget pin state will be set to LOW or OFF and thus OPENS the connected Phidget circuit turning it OFF. If ALL switches are in the OFF position (OPEN) the Phidget pin state will be HIGH or ON, thus the phidget controlled circuit is CLOSED or ON, until changed back by re-setting all toggle switches to the ON position. The 12v circuit is just for illumination of the p...

Looking to manufacture a small electric PTC preferably less than 200 Watts. I would also like it to be battery rechargable instead of a plug in. Attached is ideally what im looking for but instead of the plug in, I would like it to be rechargable. Would like it to have the same specs and size of this heater only simply would need it to be battery rechargable instead of power plug in only.

I would a like a PCB designed in a suitable software package which will allow the creation of a few prot...like a PCB designed in a suitable software package which will allow the creation of a few prototype boards. The PCB is to allow the testing of a 16x16 lamp matrix, the voltage is around 44v DC, and a 16x16 LED matrix, the voltage is around 12v DC. So hopefully one design will allow the testing of both circuits. The PCB will feature 4 x 8x8 LED Matrix displays such as this one here. These will be laid out 2x2 to create a 16x16 display. The circuit does not require any IC / logic controllers, the LED's will driven directly via a 16 break out connector, possibly a 2 row 16 way IDC.

Hi! I am looking for a freelancer to design a BLDC ceiling fan circuit with an input power of 25-30 watts and both speed and direction,ON/OFF control features using remote. I am looking for a cheap and easy to manufacture circuit design. I am open to both standard and customized design solutions. The project should be completed within a reasonable time frame and to a high quality, as it needs to fulfill specific safety and efficiency requirements. Therefore, I am seeking an individual with the necessary design experience and skillset to get the task done correctly and professionally. If you have what it takes to design this circuit, please get in touch and we can discuss the specifics of the job. Thanks!

I am looking...to design a Peltier driver circuit for my project. The circuit should meet the following requirements: - Input Voltage for the board is 24V. - Using DAC to adjust the Peltier voltage and ADC to read the Voltage/Current of Peltier [I2C or SPI]. - All the interface with uC should be isolated. [Only schematic is required WITHOUT PCB layout] Skills and Experience: - Good knowledge and experience in circuit design and electronics. - Familiarity with Peltier driver circuits and their specifications. - Attention to detail to ensure the circuit meets the desired requirements. - Ability to provide clear documentation and instructions for the circuit design. If you have the necessary skills and experience, please submit your proposal with examples...

I am in need of an SMPS design for a commercial use project. The desired output voltage and current is 12V, 2A. The form factor I require is a PCB Design. I am looking for a reliable, high quality product. Dependability, accuracy, and functionality of the SMPS will be of paramount importance. The design must be ASUS compliant and adhere to all regulations and standards, ensuring consistent output and reliable performance. Attention to all the details of the design is also important. The design should encompass cost savings, efficiency, safety, and reliability. If possible, the design should be able to integrate with diverse sources of input power. Ultimately, I am looking for an SMPS design that can lend itself to the longevity and success of my commercial use project.

...refining high-performance electronic devices. Your expertise in analog circuit design, microcontroller systems, and electronics CAD will be pivotal in transforming concepts into functional and optimized devices. Key Responsibilities: - Lead a team of electronics engineers, guiding their efforts toward creating exceptional electronic devices. - Spearhead the design, development, and optimization of electronic devices, focusing on analog circuit design with a low-frequency, low-noise emphasis. - Utilize your in-depth understanding of analog design principles, including OPAMPs, filters, and noise considerations, to engineer robust and high-quality solutions. - Leverage SPICE simulation tools to validate and fine-tune analog circuit designs. - Oversee the integration o...

Hi Guys, I would like someone to advise the components required to convert to 12 volt without the use of an inverter. Create a list and produce a drawing. From what I understand components required will be items such as 12 volt converter, POE Injector, RJ45, Dishy V2 original cable to RJ45 Adapter. This will be used to power a Starlink Dish from a 12 volt battery.

...essence of the design while ensuring clarity are welcomed. --- **Color Palette**: - Primary Colors: Black and Green - Secondary Colors: White and Gray for text and contrast --- **Font**: - **Nunito** should be used throughout the slide for all text elements. Please utilize its varying weights to establish a visual hierarchy. --- **Background**: - Base color: Black - Design: Subtle dark green circuit board or digital matrix patterns (layered for editability). --- **Central Image**: - Two editable digital spheres: 1. Deep shade of green. 2. Gray/black. - Connection: Green binary code or digital stream lines (editable paths). --- **Partnership Icons**: - Design seven green neon icons, each on its own layer. - Features: 1. Floating appearance with editable shadow effe...

A LiFePO4 battery charge / discharge controller designed for three cells or four cells in a pack. Each cell (14500 config) is 3.65V @ full charge. The power supply is either 12vdc (3-cell packs) or 24vdc (4-cell packs) we need both solutions). - Operating mode when the power supply is active: 1. Monitor and control charge and discharge for each cell independently. 2. Use constant current method @ 300mA to charge when the battery temperature is between 0°C and +45°C and when the cells are between 2.5V and 3.45V. 3. Cells should not charge when the battery temperature is above 45°C. 4. Cells will not discharge when the battery temperature is BELOW -20°C or ABOVE 60°C. 5. Each cell is monitored utilizing a unity-gain differential am...

We have a current commercial system that runs on the dsPIC33EP512GP506 (Ansi C code). Also we want to take advantage for future development of the capabilities of the ESP32 S3 especially ESP NOW RF. This project has 3 key elements: 1) Redesign the current circuit board to be exactly the same size, same plugs, same mounting holes and peripherals but change the microprocessor. Will require new schematic and gerber files 2) Migrate the C code especially device drivers to run efficiently on the ESP32 S3 ensuring software timers work at the same speed as the current ones. 3) Build in support for ESP NOW 4) Build 20 prototype boards with all components to fully prove the design. We will provide 2 sets of peripherals to the freelancer. Peripherals are: 1) 4 x 16 character LCD (includ...

Hello, I need a banner design for a special promotion for a gym. The banner is for a 5% discount for gym members. Banner must include: -Image of fitness models (attached samples) -Add 2 logos (gym and promotional company) -Promotional text: "Members save 5% Off Battery Delivery & Installation" -Add QR code image -Dimensions: 750 x 416px (centered) -Text to include: ---Free Delivery & Installation ---Free Jump Starts, Alternators, Auto, Marine, Golf, Trucks Budget $20

I am looking for a metal double eye pulley with a weight capacity greater than 100 lbs, capable of being used both industrially and residentially. The eye pulley needs to stand up to a wide range of usage, either within a large commercial setting or on-site in a residen...and the eye pulley should be able to be used over multiple operations, providing optimal versatility and flexibility. I am open to suggestions for material and design, as long as the overall product meets the specifications requested. I’m looking to have a box connected to the pulley for a circuit board so the pulley will be automated. There would have to be cogs that are automated be electricity so one one end a board for the circuit and the other end of the double pulley an electric lead box with a ...

...reliable battery backup system in place in my house. The main purpose of the system would be to provide reliable power during outages, which can occur during severe weather conditions or other unforeseen circumstances. The system will need to be able to power a large home - one which is more than 5 rooms - for extended periods of time if necessary. I am open to suggestions on the battery type and brand, as I am not sure what will work best for my particular needs. I am looking for the most cost-effective and reliable option given my requirements and budget. Our home has a breaker box orginally designed to accept electricity from a portable generator. The circuits for that unit powers critical appliances. I am looking for an experienced freelancer to design a home...

...ideal candidate should have experience in working with nb-IoT connectivity protocols, sensor interaction, and power management. Project Requirements: - Develop the nRF9160 firmware using the C programming language - Implement nb-IoT connectivity protocols to ensure seamless communication - Enable sensor interaction to gather and process data - Implement power management techniques to optimize battery life Timeline: - The desired timeline for the completion of the firmware development is less than a month. Skills and Experience: - Proficiency in C programming language - Experience in developing firmware for IoT devices - Familiarity with nb-IoT connectivity protocols - Knowledge of sensor integration and data processing - Expertise in power management techniques If you have t...

Project Title: Electrical engineering advice I am seeking an electrical engineer who specializes in electronics to provide me with general advice. Specific requirements: - Expertise in electronics within the field of electrical engineering - Ability to provide guidance and recommendations on various electronics-related topics - Strong knowledge of circuit design, components, and troubleshooting techniques Ideal skills and experience: - Proven experience in the field of electronics and electrical engineering - Familiarity with the latest industry standards and best practices - Strong problem-solving and critical thinking abilities - Excellent communication skills to effectively convey advice and recommendations The project does not have an urgent timeframe, so the engineer can p...

...post should look into the impact of convenience store coffee on coffee trends, customer loyalty, consumer tastes, and cultural habits. Finally, the post should offer some insights into the future of coffee and convenience and how they will shape the market and our purchasing habits in the coming years. Discuss the impacts of EV charging on fuel profits and how a high quality coffee can bring these customers while waiting for vehicles to charge. Coffee shop EV charging systems are a great idea with companies like Tesla already looking into the concept in North America. Coffee is still the #1 category product in convenience. Baristaequip systems provide a proven system that reduces the need to have a barista, Customers using our systems successfully McDonald's, Hu...

I am looking for a website developer to create a mail-in repair website for my repair services business. I offer repair services for mobile phones, laptops, tablets, and gaming consoles. The most common repairs that my customers need include screen replacement, battery replacement, HDMI repair, motherboard repair, and water damage repair. I need the repairs to be completed within 3-5 days for optimal customer satisfaction. also i need website support buyback service for electronic with automatic quotation , also support selling used devices and parts example Ideal skills and experience for this job include: - Web development - E-commerce functionality - Knowledge of repair service industry - Ability to create a user-friendly and professional website

I am looking for a website developer to create a mail-in repair website for my repair services business. I offer repair services for mobile phones, laptops, tablets, and gaming consoles. The most common repairs that my customers need include screen replacement, battery replacement, HDMI repair, motherboard repair, and water damage repair. I need the repairs to be completed within 3-5 days for optimal customer satisfaction. also i need website support buyback service for electronic with automatic quotation , also support selling used devices and parts example Ideal skills and experience for this job include: - Web development - E-commerce functionality - Knowledge of repair service industry - Ability to create a user-friendly and professional website

I'm looking to build a website for my new rental battery business, and I'm in need of a talented web developer to help me make it a reality. The website I need will be an e-commerce website that allows customers to rent battery from me online. My customers will also need the ability to scan a QR code to activate the rental of the battery. I have a vague idea of what I'd like the website to look like, but I'm open to design suggestions and need guidance in how this can be implemented. I'm also open to suggestions for any features or functionalities that could make the website great and create an exceptional user experience. If you think you have the skills and experience to help me build my website, I'd love to hear from you.

I'm looking for some expert help with a mixed-signal circuit design project. I need help with both the coding and physical design aspects; basically, I'm aiming for a detailed documentation of the end result. I need someone experienced in analog, digital, and mixed-signal circuit design; they should understand coding and physical design alike. I'm looking for an experienced freelancer to create a functional prototype, schematic and PCB layout, as well as the requested detailed documentation.

...Equipment Project - Circuit Breaker Replacement Skills and Experience: - Experience with electrical equipment, specifically circuit breakers - Knowledge of circuit breaker installation and replacement procedures - Familiarity with electrical safety protocols and regulations Project Description: I am seeking assistance with replacing a circuit breaker that has experienced a short circuit. The ideal candidate will have experience with electrical equipment and be knowledgeable about circuit breaker installation and replacement procedures. Responsibilities include: - Assessing the current circuit breaker and identifying the cause of the short circuit - Safely removing the faulty circuit breaker - Selecting and installing a su...

This project we are working on now is to revamp our products page. The goal is to make it more accessible and easier to navigate. Ideally, we would would like to create a products page that displays in categories showing a featured image, and a text box under it denoting the category name. I.e. battery switches, switches, busbars... All of the images are uploaded to the wordpress website. I would then like for these to be clickable and open to another page showing all of the products under that category.

I am looking for a freelancer who can create Gerber files for a digital circuit design. I have specific components in mind for the design and I would like the Gerber files to be complete, with all layers and detailed instructions. Skills and experience needed for this project include: - Proficiency in circuit design and creating Gerber files - Knowledge of digital circuit design - Attention to detail for creating complete Gerber files with all layers and instructions

I am looking for a freelancer who can help me with a PIC program and circuit board design project. Here are the details: PIC Program: - I need a microcontroller PIC program for my project. - The program should be able to control various functions and components. Circuit Board: - The circuit board should support the PIC program and a few other components required for the project. - The intended function of the circuit board is to control a device. Quantity: - I will need multiple circuit boards for my project. - I will most likely use the provided gerber files to have 5-10 circuit boards made in China. Ideal Skills and Experience: - Experience in designing PIC programs and circuit boards. - Proficiency in microcontroller programming and e...

Lithium Ion Battery Control related circuit devices for Temp runaway and fire protection at Lithium Ion Battery in Electric Vehicle Battery.

? Seeking Assistance! ? Electrical Circuit Hello everyone, We're currently looking for someone proficient in homework-solving to assist us with a few challenges we're facing. If you have the expertise or know someone who does, please reach out. Thank you!

Hi Priyanka B., Links off grid solar systems solar battery

I am searching for a remote valve that can fit my specific requirements. After careful consideration, I have selected a servo remote valve for this project. The desired voltage for the valve is 12V, and it will be used for a water system application. the valve is a 180 degree GF ball valve for bleach mixing. the valve needs to be able to be open from 0-100% and stop in any position along the way. The valve is attached as a picture. CA

Hello, I am in need of a PCB (~ 1 inch diameter) for human tracking system that is capable of providing real-time tracking updates to 1 or 2 persons. The tracking needs to include geofencing capabilities. It is similar to Apple Tag luggage tracker but should work with BOTH ...BOTH iPhone and Android phones. I would also need the tracking device to come with a SOS red button that sends a notification for help to the phone of a Caregiver or Family member. In short, I need a comprehensive real-time tracking solution that will enable the person with the tracker to send notification to a caregiver or a family member using a SIM card. It should a have a replacement 5 year battery such as CR2477. Must be able to create GERBER files and Bill of Materials spreadsheet to fabricate PCB design ...

...transfer. - Strong knowledge of power electronics and circuit design. - Experience with RF engineering and antenna design. - Familiarity with safety standards and regulations related to wireless power transmission. - Ability to troubleshoot and optimize wireless power transmission systems. - Excellent problem-solving and analytical skills. Deliverables: - A functional wireless power transmission system that can efficiently transmit electricity wirelessly. The input of the system would be 240v ac 50Hz and 10Amps and would output the same 240v ac, 50Hz, 10Amps. I need a transmitter system, transmitter antenna, receiver system and receiver antenna. To be created via inductive methods. - Detailed documentation including design specifications, circuit diagrams, and performanc...

Need an Engineer to design the circuit schematic and PCB layout for a Single Board Computer that uses a Rockchip RK3399 SoC. This board will use a Linux based OS and will be used for multiple deployments/applications. This board will need to be very similar to the Raspberry Pi, Rock Pi 4b, RockPro64 and have a 40 pin GPIO that has the exact same pinout as the Raspberry Pi. Board will need to have: RK3399 SoC 4GB RAM - Preferably DDR4 - and must be in dual channel config -- So 2 x 2GB SD Card - Full sized SD Card slot for the OS LAN Port - Running at 1Gbe LAN WiFi + Bluetooth - WiFi @ 2.4GHz and Bluetooth at rev 4.0 2 x USB 3.0 - for peripherals/HID 40 PIN GPIO - GPIO header with the exact same pin layout as the Raspbery Pi HDMI Port - for single display connection. USB Type C Port ...