Electrical Engineering Jobs

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Fixed-Price - Expert ($$$) - Est. Budget: $150 - Posted
Hi there, I need someone to write a 1 page technical article on electronic current, outlining the problem, explaining the concept, and describing how our company has dealt with it. Technical content will be provided, just need to wordsmith it. Have graphs and tables. Most likely there will be 1-1.5 pages of text (depending on how succinct we get) plus tables and graphs. Not rocket science but need someone really switched on, preferably with an electronics or computer science background or high aptitude to wrap their head around the task. Background reading: https://en.wikipedia.org/wiki/Inrush_current
Skills: Electrical engineering Technical writing
Fixed-Price - Intermediate ($$) - Est. Budget: $5,000 - Posted
We are interested in getting a program/device designed to duplicate RFID and iButton access control keys for clients. We would like the controller to be based off of the Arduino platform but are welcome to other suggestions. The UI should be controlled through an android tablet and be very well designed for non-technology oriented customers. There are several dozen different formats of RFID based keys that we need supported by this device. There is a lot of online documentation about each format we require and we can also provide assistance in understanding each format. Ibutton is also well documented. We would also like the mobile app to be connected to a server to report on it's usage and location. All materials including testing keys, blanks and verification equipment can be provided.
Skills: Electrical engineering Application Server Integrated Circuits Mobile Programming
Fixed-Price - Intermediate ($$) - Est. Budget: $15 - Posted
I need a content writer for my electric scooter forum. Looking for content which resonates with electric scooter hobbyists. at least 300 words and if the content is good, it will be a long term partnership
Skills: Electrical engineering
Fixed-Price - Expert ($$$) - Est. Budget: $500 - Posted
My project is to create synchronous rectifier for automotive alternator. I have already finished with the hardware (picture attached), now I need help with the software part. Basically it is three-phase bridge, created with low resistance MOSFET transistors, which need to be activated/deactivated at the precise time in order to turn input three-phase AC voltage into output one-phase DC voltage (12V). No voltage regulation is needed, this is done externally by dedicated voltage regulator, which does not require any interaction. The hardware will be controlled with Texas Instruments F28069 controlSTICK microcontroller (this is a must), so I need somebody with experience in programming Texas Microcontrollers. For more details, please do not hesitate to contact me. Already completed: - GPIO - ADC
Skills: Electrical engineering C Electronics Microcontroller Programming
Fixed-Price - Intermediate ($$) - Est. Budget: $125 - Posted
For this job, you will be required to complete a total of 5 lab reports (Labs 6-10) and simulate digital logic circuits in a program such as Logisim (http://www.cburch.com/logisim/download.html) or LogicWorks or any digital logic simulator. You must use simulation software to check your work and build schematics, saving schematic files, as well as taking screenshots of the schematics being simulated successfully. You will need to save every Logisim/simulated schematic file (.circ) as you build it while completing the steps of each procedure in each experiment and submit with a well formatted report. When submitting for review, you will send the report, the .circ file, any screenshots of a simulated circuit, and any other relevant information/data. Laboratory Experiments 1-5 have already been completed. You will only need to do Experiments #6-10. View the EXAMPLE files to see how the work was done and how to set up and format properly. I have included COMPLETE examples of Labs 2, 3, and 5. You can view INCOMPLETE and possibly inaccurate Lab examples 6, 7, and 8. However, these may be incorrect results and still do not have the simulated digital circuit. The only real work is completing the questions, any calculations, and creating the schematic being simulated for the lab experiment. Skills required: Electronics, Digital Logic, Circuitry, Knowledge of Components, etc. Compensation is negotiable depending on your skills and how well you do on the reports.
Skills: Electrical engineering Circuit Design Digital Electronics Electronic Workbench
Fixed-Price - Expert ($$$) - Est. Budget: $2,000 - Posted
We need a schematic for a digitally controlled variable power supply that can switch between AC and DC and can switch polarity for DC voltages. Needs to be stable and precise. Voltages need to vary from 0 to 30V, and 0 to 5 amps. This needs to all be controlled by a Raspberry Pi 3. We can handle all the programming - just need the circuit design.
Skills: Electrical engineering Circuit Design
Fixed-Price - Entry Level ($) - Est. Budget: $50 - Posted
Looking for someone to develop digital signage for raspberry pi. The Raspberry Pi will be connected to 32 Inch TV hanged vertically. The sign needs to needs to have different sections each section with capability of showing pics or videos. If interested please contact me with sample of previous work.
Skills: Electrical engineering Graphic design Raspberry Pi
Fixed-Price - Intermediate ($$) - Est. Budget: $750 - Posted
Looking for an EE with consumer electronics products background on a multi-week project to design a system to detect the rotation distance and direction of a ring. The ring is slow turning and low resolution. Solutions are either optical encoder or break-beam encoder (open to other suggestions!) The design must be small (product is size of a golf ball), energy efficient, and low cost. Looking for full end-to-end design including concept, schematics, layout and component selection.
Skills: Electrical engineering Circuit Design Hardware Prototyping PCB Design