Electrical Engineering Jobs

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Fixed-Price - Intermediate ($$) - Est. Budget: $100 - Posted
Need a circuit design schematic with component details and explanation of how the circuit works for LiFePO4 Battery Charger & Battery Management System. There are many open source designs available on the internet. Most of these are based on dumping extra charge to resistors for balancing each cell. We would prefer if there is a more efficient way to charge and balance the cells. The details are in the attached document. If you have existing design/s close to our requirements, that would work as well. Please let me know if you have any questions. Thanks. Vijay
Skills: Electrical engineering Circuit Design Integrated Circuits
Fixed-Price - Expert ($$$) - Est. Budget: $2,000 - Posted
Hi, We need a drone / UAV specialist to design a custom drone prototype for us. We require the complete electronic & communications design, basic drone design, integration and build of the prototype drone model along with the controller. Drone's Basic Requirements: - Need to have a minimum drone & controller undisturbed live communication distance of 15 KM - Need to be able to carry a minimum payload of 2 KGS (Roughly 4 lbs) - Should have a battery life for non-stop use of 45 minutes. - Should have a minimum flying speed of 50 Km/h - GPS Pinpoint Following - Drone should be equipped with a Camera - Controller should be able to view through the drone camera These are the basic specifications of our requirement. We would love to discuss more if you are interested in working with us on this promising project. Further opportunities are also available with us in terms of partnerships. Looking forward to hear your ideas.
Skills: Electrical engineering 3D Modeling Drones Electronic Design
Fixed-Price - Expert ($$$) - Est. Budget: $2,000 - Posted
We are a premier Dimensional Inspection Lab in Southern California and would like to improve the current content of our blog. We are looking for a seasoned writer to submit short blog posts (about 500 words each) throughout the year. We are aiming to have a blog post at least twice a month. These blog posts will center around the Metrology field, specifically dimensional measurement using various services and products related to 3D scanning, Nano Measurement, Reverse Engineering, and Dimensional Inspection. We are also interested in finding someone who can assist with writing our eBooks. Ideally, the candidate for this project possesses good communication and analytic skills, is able to meet set deadlines, is highly self-motivated, detail oriented, and able to research and write about technical subject matter. Our blog can be found here: http://info.qpluslabs.com/blog
Skills: Electrical engineering Blog Writing Business Writing ebook Writing
Fixed-Price - Expert ($$$) - Est. Budget: $5,000 - Posted
Hi! We are developing a new a new Bluetooth headphone and need to find an experienced engenieer who can help our factory to find a solution around app control. We want to develop an app where the user can adjust the sound volume, bass, discant etc through the app instead of pressing buttons on the headphone. Our headphone will also have some more advanced functions such as multi channel intercom and noise cancelling functionality. We want the app to support that kind of adjustments and options too. We are looking for someone who can help our factory to find the right chipset and software to be able to control the headphone via the app.
Skills: Electrical engineering Bluetooth PCB Design
Fixed-Price - Expert ($$$) - Est. Budget: $80 - Posted
Looking for an experienced Electrical Engineer/Printed Circuit Board designer to refine an existing PCB for a consumer electronics product and prepare it for mass production. Project is ongoing with a target launch date of winter 2017. Prototyping milestones will be given for design, preparation for manufacturing, and simulation/testing. Guitar experience (as a hobby or professionally) is favorable. Experience with piezoelectric sensors also favorable. Role requires strong interpersonal skills, time management, and ability to collaborate with a multi-talented team. Final deliverables are a working PCB and all associated schematic/layout files necessary for production.
Skills: Electrical engineering Circuit Design Eagle Electronic Design
Fixed-Price - Expert ($$$) - Est. Budget: $100 - Posted
We are looking for a technical designer or electrical engineer who 'ideally' has solar design experience for residential solar panel systems. Must be experienced in AutoCAD and / or REVIT and produce drawings in these formats. We will provide the basic solar design layout, building drawings and technical specifications for each job; you will then convert that into AutoCad or Revit and turn those around in 3 days or less. As we will be doing the base work for each project your bid pricing and scope of work should reflect that. Solar design experience will be viewed as a big bonus, however our solar design engineer will provide assistance and guidance as necessary and examples of what exactly is required to the successful bidder(s). This is a potentially an ongoing contract with the successful bidder. Successful bidder must ensure accuracy and be time responsiveness as these will be critical for our needs. The price quoted is on an individual job basis, we will likely have dozens of jobs throughout the year to provide.
Skills: Electrical engineering AutoCAD Autodesk Revit Electrical Drawing
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, 10-30 hrs/week - Posted
I am looking for an experienced electrical engineer to develop the technical documentation for a standardised utility scale 1.5MW solar plant with energy storage. I would like to develop a standard system which can be installed repeatedly by local community groups. The study will be performed in stages to establish estimated yield, typical site plan and access, PV panel general arrangement (angle, axial control, structural frames), inverter sizing, battery connection, electrical design & single line diagram, equipment specification and selection study, SCADA requirements, commissioning and operations requirements.
Skills: Electrical engineering
Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, 10-30 hrs/week - Posted
You are tasked with building two sensor devices that are capable of detecting objects such as people and vehicles, regardless of whether said objects are in motion or not. The devices must be small and compact, not exceeding 5 inches in height, 10 inches in width, and 4 inches in length. Physical Appearance --------------------------------- The two devices must both be encased in a Matte Black hard casing capable of withstanding repeated drops from about 5 feet in the air, extreme high and low temperatures, water/rain, snow, high winds and ice. The devices and casing must resemble the form of a square, cube or rectangle and must be able to sit flat on concrete, asphalt and many other surfaces on its own. Features and Capabilities ---------------------------------- The two devices must be equipped with Wireless, Bluetooth, NFC, GPS, Flash Memory Storage, GSM connection, 3G, 4G, Ultrasonic, Camera, and battery charging capabilities. You may add more components in order in order to successfully complete this contract. The devices must be able to detect, connect, transmit and receive data to and through Wireless, Bluetooth, NFC, GSM, 3 and 4G. The devices must be able to log data such as date, time, temperature, whether it is raining, or snowing, whether rain/water, ice and snow is present, whether or not the space it is tasked to monitor is occupied, when it becomes available, and the GPS coordinates of the individual device. Each device must have a unique signature, and must be able to securely verify that it is only communicating with the other device, and or any other allowed devices based on signature, IP address, and GPS coordinates. The devices needs to be able to detect whether an object such as a vehicle or person is within 15 feet from it. The device must also be able to detect objects within a space at least 9 feet wide and 18 feet long. The device must be able to detect vehicles based on tire plates. The devices must contain Flash Memory with at least 2GB of storage space. The devices must also be able to transmit and receive requests from a web server inquiring information such as battery life, GPS coordinates, temperature, whether conditions, date, time, and whether the space being monitored is in use or not. The devices must have battery charging capabilities, and a cord that can support 120 V charging which is the US Standard. The devices must have internal battery's meant to keep the device functioning in the case the cord is not in use or functioning. Internal batteries which can be removed and replaced should be able to last a minimum of two to three days. The devices will be functioning 24 hours/7 days a week. When the space the devices are tasked with monitoring is unoccupied or motion is not detected, the devices will display a strong beam of green light (LED) that is at least 3 inches wide, can be seen from 15 feet away, but when the space is being occupied or motion is detected, a red light will appear. The devices should have at least 1 GB of Ram, and at least 80 MHz CPU although you may increase these specifications. Blueprints and documentation -------------------------------------- You are also tasked with providing detailed blueprints containing detailed information and diagrams as to how the device was assembled. The blueprint should resemble those used by manufacturers, one example/diagram is shown in the following link - http://1u88jj3r4db2x4txp44yqfj1.wpengine.netdna-cdn.com/wp-content/uploads/2012/09/iphone-5-blueprints.jpg You are also tasked with providing detailed documentation of the programming, and the devices functionality, etc. You must also provide information of your suppliers for and the cost of each item. The blueprints and documentation should be stored inside a flash drive and physical paper/canvas. Reimbursements ------------------------------- You will be reimbursed for component prices of the second device, flash drive, paper/canvas and the shipping costs of shipping both devices and documents if and only if the devices work to specification and the documents meet the standards and requirements set above. Should the devices not work as required or the rest of the requirements not be met, you will be responsible for absorbing the fee's. Payment --------------------------------- In your proposal, you can request a fixed or hourly payment. Due Date --------------------------------- Completion of the blueprints accompanied with a 3D animation and or model (not required) of the product may allow me to extend the due date past November 2016, into the first or second week of December. Please be aware should you accept this contract, that this project is time sensitive. If you are successful in completing this project, I may be able to rehire you for more work such as the completion of Android and IOS mobile, and smartwatch apps, smart car apps such as those in Ford and Tesla, and apps for devices such as Amazon Alexa and Googles Home.
Skills: Electrical engineering Android Android App Development Android SDK