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Fixed Price: $20 - $60   |  Posted: 5h, 37m ago  |  Ends: 14d, 18h  |   5 Proposals
I have an Autometer Speedometer that puts out a square wave at 5 volts DC. The faster the speed, the higher the hertz. I need a circuit that will trigger at 175 hertz and above and turn off below 175 hertz. It has to be powered by a 12 volt DC source. Would prefer if possible that the hertz setting can be made variable. I need it to put out a negitive trigger for a relay.
Category: Electrical       

e****to1
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| e****to1
|    United States
Fixed Price: Not Sure   |  Posted: 7h, 3m ago  |  Ends: 14d, 16h  |   12 Proposals
I need a good clear and inspiring images (four for each) that represent each of the following industries. I need the images labelled with the industry. To be considered provide me with two example images (one image for 2 industries). I need the permission to use them on a website. Please tell me where you got the images from. You will need to transfer the files to me via drop box. Accounting Arts and Crafts Automotive Banking Chemicals Construction Cosmetics Design Financial Services Food & Beverages Fund-Raising Furniture Gambling & Casinos Graphic Design Hospitality Human Resources Insurance International Affairs Internet Investment Management Law Enforcement Libraries Logistics and Supply Chain Machinery Maritime Market Research Marketing and Advertising" Mechanical or Industrial Engineering Museums and Institutions Music Newspapers Online Media Performing Arts Pharmaceuticals Photography Political Organization Printing Public Safety Publishing Real Estate Recreation...
Category: Other - Administrative...       
Skills: Internet Research, images       

J****011
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| J****011
|    Australia
Fixed Price: $1,000 - $5,000   |  Posted: 7h, 46m ago  |  Ends: 14d, 16h  |   6 Proposals
We are in need of a highly experienced Firmware Engineer or Firmware Engineering Team. Our Software developers are based in Austin Tx and we are in the process of moving the remainder of our Mechanical and Electrical Engineering to Taiwan where we will be completing our prototyping and conducting our manufacturing. We need a Firmware Engineer who has experience and skill set: Experience in low level hardware integration Sensor integration including accelerometers and ambient temperature sensors Experience with wearable technologies is preferred Peripheral control and driver development with experience using SPI/I2C/UART Over-the-air bootloader firmware development Basic understanding of schematics Extensive experience bringing up new hardware C++ class-based driver development RF programming experience in Bluetooth LE using a Nordic Semiconductor processor Experience in profiling and optimizing real-time systems Experience writing ultra-low power and low memory footprint a...
Category: Software Application       
Skills: Firmware Engineering       

p****ine
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| p****ine
|    United States
Fixed Price: About $20   |  Posted: 10h, 40m ago  |  Ends: 14d, 13h  |   0 Proposals
I have an audio source (portable cd player) connected to an amplifier through the AUX In. At the push of a button (preferably wireless) I need to have a device interrupt the current audio source by lowering its volume and instead feed a pre-recorded message to the AUX In to be played on the Receiver. The message is no longer than 30 seconds. This is similar to PA systems where when the announcers starts to talk the music is lowered. These are my constraint: 1. The solution has to be an existing device (or multiple devices) that integrates with my current setup. No computer solution. 2. I need to be able to easily record a new announcement on the device. 3. The cost should be less than $200.
Category: Electrical       

d****ava
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| d****ava
|    United States
Fixed Price: Not Sure   |  Posted: 11h, 10m ago  |  Ends: 14d, 12h  |   3 Proposals
My company is looking for a specialist who can offer us insights on how to get two electrical motors to communicate via a joy stick. We are working on an electric scooter, and we need an electronics Guru who can provide us with some electrical insight for building a rock solid mobile device.
Category: Electrical       
Skills: Materials Engineering, Electronics       

e****cts
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| e****cts
|    United States
Fixed Price: Less than $500   |  Posted: 12h, 34m ago  |  Ends: 14d, 11h  |   7 Proposals
I need a lighting schedule/drawing and specs for a building that is 5700 sq/ft. Only basic lighting (LED) enough to provide required lighting for an industrial environment connected to an existing panel 600A 240/480V. Also need emergency lights and exit lights for two (02) exit doors (backup power will be batteries within the signs/emergency lights itself.
Category: Electrical       

x****mac
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| x****mac
|    United States
Hourly Rate: $20 - $30 / hr   |  Duration: Not Sure  |  Posted: 13h, 27m ago  |  Ends: 14d, 10h  |   8 Proposals
We have the desire to create an electric standing desk with the ability to integrate a widely configurable PC 'desktop' system. We have a variety of concepts that require expertise to prepare for prototyping, marketing, and manufacture.
Category: Product Design       
Preferred Location: North America

X****llc
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| X****llc
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: 14h, 11m ago  |  Ends: 14d, 9h  |   1 Proposal
Our company in is need of the following: 4 or 5 Electrical CAD Designer/Draftsmen Application software Autocad BSEE a must Over 5 Years Experience a must. Experience with aerial and underground circuits Experience in the transportation industry, train a plus Must live in the New York City Area Please include your resume and salary requirements
Category: CAD       
Preferred Location: United States

I****-pr
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| I****-pr *
|    United States
Fixed Price: $500 - $1,000   |  Posted: 16h, 18m ago  |  Ends: 14d, 7h  |   5 Proposals
We are looking for a partner who could help us to develop an IOT box which will contain up to 48 home keys. The box should be able to be opened via password provided though the app which we are building already. The Box will have a safe type pin code lock and the password will be provided via the app. Once the user input the passcode, then the door of the box and lock of the specific key will be opened. The box will be powered via ac adapter and wifi/lan cable should be available. The box size should be under 50cm high, 30cm wide and 10cm deep. The box material can be anything light weight but need to have strength that normal human can not penetrate with bare hand. The box must have water proof version and non water proof version. Below is a spec which we assume. Bluetooth Option Spec: - 5V Power supply for controller - 24V Power supply for lock device - Microcontroller module 400Mhz - Bluetooth 3.0 module - Relay switch - Electric door lock device - Developed firmware - 9-...
Category: Electrical       

m****ly1
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| m****ly1
|    Japan
Fixed Price: Less than $500   |  Posted: 16h, 30m ago  |  Ends: 14d, 7h  |   8 Proposals
Hey all, I am an electrical engineer with a lot of programming experience (c, c++, MATLAB, etc) and I want to start writing iOS apps using Sketch and Xcode. I plan on doing everything myself, but I'm looking for someone who wouldn't mind answering my questions, pointing out good tutorials, and providing overall guidance and consultation as I move along and progress through this. I have several courses of my own on my computer and on youtube, I own Sketch, but am just looking for help on the technical details on how to approach things. Currently, I am wondering how to import a UI design from Sketch and then build it into a real app using the Interface Builder Xcode.
Category: Mobile Applications       

S****330
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| S****330
|    United States
Fixed Price: Less than $500   |  Posted: 17h, 6m ago  |  Ends: 14d, 6h  |   1 Proposal
I have a Bluetooth Low-Energy beacon project that is based on a CSR1010. I have the beacon code working but the beacon function is currently broadcast (transmit) only. Now I need to add the ability to detect (receive) when another paired beacon comes into range. When another beacon comes into range it will trigger a PIO output. Need someone with lots of experience programming CSR BLE chips.
Category: Electrical       

J****lEE
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| J****lEE
|    United States
Hourly Rate: Less than $10 / hr   |  Duration: 1-3 months  |  Posted: 17h, 17m ago  |  Ends: 14d, 6h  |   6 Proposals
You will be an Electrical Design Engineer capable of working independently although you will receive support from a team of 15 Building Services design
Category: Electrical       
Skills: Electrical Engineering, Electronics       

h****son
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| h****son
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: 17h, 40m ago  |  Ends: 14d, 6h  |   2 Proposals
Lead our electrical and controls research and development project activities utilizing outsourced contractors to develop prototypes and manufacture production. Assist with identifying new cutting-edge opportunities for existing and new products including imbedded motor controls and wireless and peripheral equipment.
Category: Electrical       
Preferred Location: United States

m****ike
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| m****ike
|    United States
Fixed Price: Less than $500   |  Posted: 17h, 41m ago  |  Ends: 14d, 6h  |   6 Proposals
Hi there, I'd like someone to build a 12v circuit for me that provides a 60hz sinewave oscillator. We'll later take this sinewave oscillator and use some MOSFET transistors to amplify the signals. We'll then connect a transformer to create a 12v-to-120v inverter capable of 5000 watts. The power source of the inverter will be a 12VDC deep cycle battery rated at 110ah @ 20 hours. The battery will also be connected to an alternator providing 100 amps at 14.3 VDC. If you can build the oscillator, that's all we need for now - but if you think you can build the whole project, then great - please indicate that in your proposal. I look forward to your proposal! Please include the word "inverter" in your proposal so that I know you read this project description. Here's some reference material:   [obscured]  /watch?v=VDi_uFSr3w0   [obscured]  /wp/?p=415 I'd like the inverter to be as close to pure sinewave as possible, but that objective will be limit...
Category: Electrical       

m****ert
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| m****ert
|    Canada
Fixed Price: Not Sure   |  Posted: 17h, 55m ago  |  Ends: 14d, 6h  |   6 Proposals
I need you to make me a circuit (tangible, not just diagram) that will connect between 2 of my solar batteries (12 V). When the first one dies, I need it to switch to the other (backup) battery automatically and keep them relayed / connected so that the solar panel will begin recharging the first one (that died). Please let me know any info you need and how much you will make me this circuit for. May need 2-3 of these circuits, so please quote me per circuit made. Thanks so much!!
Category: Electrical       
Skills: Circuit Design       

c****sty
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| c****sty
|    United States
Fixed Price: Not Sure   |  Posted: 19h, 8m ago  |  Ends: 14d, 4h  |   6 Proposals
In need of an experienced NFC/RFID engineer to design and or provide input regarding design of an RF based tracking system for use in the health and fitness industry. Job will require some out of the box thinking and innovation.
Category: Electrical       
Skills: RFID, nfc       

4****ain
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| 4****ain
|    United States
Fixed Price: Not Sure   |  Posted: 20h, 25m ago  |  Ends: 14d, 3h  |   3 Proposals
I need to develop a prototype. The Product needed is a flat, flexible, rubber, waterproof, durable, working solar panel (all wires must be concealed in the flexible rubber structure). Around 3" x 9" in size with a strong velcro strap on the back.
Category: Electrical       

h****lan
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| h****lan
|    Ireland
Fixed Price: Not Sure   |  Posted: 20h, 37m ago  |  Ends: 14d, 3h  |   3 Proposals
I need to develop a prototype. The Product needed is a flat, flexible, rubber, waterproof, durable, working solar panel (all wires must be concealed in the flexible rubber structure). Around 3" x 9" in size with a strong velcro strap on the back.
Category: Electrical       

h****lan
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| h****lan
|    Ireland
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 1d, 20h  |   9 Proposals
We would like to have a design for a vending machine host control board using pulse mode to control 3 to 12 coin hoppers. Job is to create the electronics and also produce the boards if possible.
Category: Electrical       

n****nse
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| n****nse
|    Australia
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 1d, 19h  |   12 Proposals
I would like details and diagram of how to make a control board for a coin hopper including parts list, using 12v DC (Carbon-Brush Gear Motor) max current 4.9A I want a controller to turn the motor on when a 12v pulse is received from a coin acceptor and then turn off once the coin is dispensed. Please see attached diagram for details. Can send more information if required.
Category: Electrical       

n****nse
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| n****nse
|    Australia
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jul 27, 2015  |  Ends: 13d, 4h  |   8 Proposals
Tegu, a maker of wooden magnetic building block toys (  [obscured]  ), is seeking a prototype engineer to help demonstrate and evaluate RFID technologies for a 'smart-shelf' retail inventory management application. The individual should be experienced and an passionate builder. Tegu would like to explore using PCB modules to construct a RFID reader and data networking capable prototype. Tegu's scope of work includes: - hardware evaluation - physical assembly of hardware - coding and RFID middle-ware solutions - data integration into Tegu's existing enterprise systems - testing and evaluation of the prototype. Applicants with prior experience in rapid prototyping and/or RFID solutions are a major plus. Should the prototype and working relationship be successful, Tegu envisions significant follow-on work possible. Tegu is ready to move to a prototype ASAP! Please enquirer for more details or questions on the project! Thank you
Category: Electrical       
Preferred Location: United States

T****oys
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| T****oys
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jul 27, 2015  |  Ends: 13d, 2h  |   2 Proposals
We wish to have a thermal test done on our new lighting Module mount SC-S. Here are the parameters: Test range of ambient temperatures -Warm (20-45 C / 68-113 F) -At 5 C increments Material and Product specs included in Package - Light engine spec sheet, assembly materials) - thermal paste Test with Gypsum Drywall & Junction Box in wall mounted condition (already positioned in a SolidWorks Assembly-Materials have been assigned to part files - Use "SC-S Sconce Thermal Test rB" for testing) Deliverables - Cut away section views of complete assembly w thermal shading at each 5C increment - Specific point temperatures indicated at IC, LED, and hottest point on assembly - A testing Protocol Checklist will be provided upon job awarding. Assumptions -Typical convective air flow (no wind etc) Timelines - Testing completed for Wednesday July 29, 2015 - Friday July 31,2015
Category: Mechanical       

T****RBW
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| T****RBW
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: Jul 27, 2015  |  Ends: 58d, 2h  |   22 Proposals
Hello, I'm currently adding to a robot prototype I have, and would like to work with someone who has experience in working with manufactured products. Ideally you are a mechanical/electrical engineer or an industrial designer that would either help with the internal electronics and motors or a designer who will help with materials and 3D designs that are ready for manufacturing. The things I have already worked out are: - The way the robot navigates - Self balancing on ball (see picture) - Dimensions The things I need work on: - A way to interact with the robot - Developing the arms to fit the design - Work with parts (micro processor and such) to help when it comes to manufacturing
Category: Product Design       

s****awy
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| s****awy
|    Canada
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