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Posted: Within 7 days
Fixed Price: Not Sure   |  Posted: 2h, 16m ago  |  Ends: 14d, 21h  |   1 Proposal
Hello I have a working relay system that i use for a few years and now i want to upgrade the code for it. Currently i use ATTINY13A to control a Non Latching Relay-DPDT 5V relay (TAKAMISAWA A5W-K) via a momentary spst footswitch. I can supply the schematics ,Hex files and BOM. Currently, when the footswitch is pressed, the uC is waiting until it is released. When the footswitch is released the relay is activated, along with an LED indicator.When this action is repeated,the relay is switched off. What i want to do is to use the same hardware and to add some features to the switching system, such as- 1. momantaty switching (relay is on only when the footswitch is pressed) 2.Reverse/Standard switching (either having the relay acrivated when the footswitched is released or when it is pressed) *Important feature (that is currently implimented) is that when the power supply cuts out, the relay switches automatically to "bypass mode" My request is for the files ,so i can progr...
Category: Electrical       

R****zic
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| R****zic
|    Israel
Fixed Price: Less than $500   |  Posted: 2h, 48m ago  |  Ends: 14d, 21h  |   3 Proposals
control relais with arduio gprs module via website control relais with arduio gprs module via website i must be able to control the diffrent relais via a webpage on my server . i also easly must be able to add ar remove a device i bought this gsm module sim900a mini v3.8.2   [obscured]  /item/New-SIM900A-V4-0-Kit-Wireless-Extension-Module-GSM-GPRS-Board-Antenna-Tested-YKS/32238571507.html you also need to guide me to use it
Category: Electrical       
Skills: Arduino       

o****dun
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| o****dun
|    Belgium
Fixed Price: Less than $500   |  Posted: 3h, 34m ago  |  Ends: 14d, 20h  |   4 Proposals
Route attached Eagle board to match layout of attached PDF. The schematic should be complete, all desired component models are included in board file. Top DXF of the board is attached, and all parts are dimensioned on the attached PDF. - The GND and 12V lines to the motors (DYN icons) should be large enough to handle 2-3 amps - The GND/3.3V lines to the 28-pin J1 connector should be large enough to handle an amp - Space for wiring on the board may be tight. In the attached Sketch image there is a layout of how we imagined the wiring might work, but when trying to do that actual routing that planned layout may not work out. We can discuss how to slightly reshape the board to get more space if necessary Please inquire as to any questions! Desired turn-around is two to three days
Category: Electrical       

t****318
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| t****318
|    United States
Fixed Price: Less than $500   |  Posted: 5h, 36m ago  |  Ends: 14d, 18h  |   9 Proposals
i already have the 3d max file. im looking for someone or company to manufacture a unique smart phone Usb charger chord.
Category: Other - Engineering &...       

O****nte
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| O****nte
|    United States
Hourly Rate: Not Sure   |  Duration: 1-2 weeks  |  Posted: 7h, 19m ago  |  Ends: 14d, 16h  |   5 Proposals
want to create a location sensor device. Please let me know if you would be able to help me? What is the duration you are looking for? Regards, Lakshana
Category: Electrical       

l****nap
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| l****nap
|    Australia
Fixed Price: $20 - $75   |  Posted: 7h, 41m ago  |  Ends: 6d, 16h  |   5 Proposals
I am looking for a complete design of a mobile Espresso Bar. After your design the carpenter will build the final product. WORK - PRODUCT A Mobile Espresso Bar (see attached pictures) Basis of the mobile espresso bar should be 1. a 1260x790mm kitchen island and needs to be adapted to it needs (for example an ikea stenstorp kitchen island). OR 2. Draw an own model This semifinished product has to be finished to a Mobile Espresso Bar. It should provide space for: Above Countertop :: Coffee Mashine (600x600x700mm (Width/Depth/Height)) :: Grinder :: Countertop Lid, straw and Condiment Organizers :: All kind of holes for supply (electric, water, waste etc) :: Refridgerator for cold drinks and/or take away cake/sandwiches smoothies :: a space where a customer can prepare his coffee, example to finish with sugar, stir and put a top on the cup. :: A space where the customer can drink the coffee. Can be made with one of the sideparts (see closing) :: any input or ideas will be great Belo...
Category: CAD       
Skills: 3D, 3D Modeling, AutoCAD, Manufacturing Design       

w****nfo
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| w****nfo
|    Austria
Fixed Price: Not Sure   |  Posted: 7h, 47m ago  |  Ends: 14d, 16h  |   2 Proposals
Good afternoon, I am looking to develop an ultra lightweight, portable fully USB powered monitor system for business executives and other mobile professionals to use whilst on the move. In short, I am looking for someone to fully design and engineer a portable monitor with the following properties: 1. 10 - 14 inches in size 2. Fully USB powered (no power outlet required) 3. Minimum 720 resolution 4. Ultra lightweight (less than 1kg is a must) 5. Ultra thin (1-2cm max) 6. Free standing / in-built kick stand 7. Protective case / shell for transportation 8. USB 2.0 + compatible 9. Compatible with all modern operating systems Whilst a very brief overview, hopefully this provides you with a basic understanding as to what I am after to allow you to consider if your skill set would be appropriate for the project. By way of reference, below are a couple of links to existing competitors in this space which I am seeking to compete against. If you feel that your skill set would be appro...
Category: Electrical       

t****y86
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| t****y86
|    United Kingdom
Fixed Price: Less than $500   |  Posted: 10h, 1m ago  |  Ends: 14d, 13h  |   1 Proposal
I need a great, high quality, native English speaking/ blog writer that can write blog posts on electronics. They may be on electronics, pcb, engineers related topics. Must be a professional writer. Must have knowledge about PCB, electronics or engineers. Writer Must be Engineer will be plus. Looking for somebody awesome, responsible, somebody long term. Only apply if English is your first language. Give me cost for each article (500-1000 Words) Thanks
Category: Article Writing       

r****pcb
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| r****pcb
|    United Kingdom
Fixed Price: $70 - $90   |  Posted: 11h, 59m ago  |  Ends: 14d, 12h  |   2 Proposals
I am looking for someone who could design a Complex FIR filter with arbitrary magnitude and phase response using weighted least squares method. Please contact me if you are interested
Category: Electrical       

t****s89
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| t****s89
|    Sweden
Fixed Price: $500 - $1,000   |  Posted: 15h, 5m ago  |  Ends: 29d, 8h  |   2 Proposals
- Proximity of 1-2m range - Custom proximity sensor that can act as a switch to 'do something' on an ipad. An example would be your cat walks within 1-2m range of your ipad and the ipad plays a 'meow' audio file. Must also be familiar with iOS language and programming
Category: Electrical       
Skills: Electrical Engineering, Electronics       
Preferred Location: Eastern Europe, India/Southern Asia, Middle East & Central Asia

L****ner
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| L****ner
|    United Arab Emirates
Fixed Price: Not Sure   |  Posted: 20h, 16m ago  |  Ends: 14d, 3h  |   5 Proposals
I have to build a simulink model of the fourier series.The simulink model should comprise of a signal generator as the input that generates any waveform and the output of the simulink model should display the fourier series for the input waveform from the signal generator.
Category: Electrical       

r****deo
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| r****deo
|    Trinidad And Tobago
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 28, 2015  |  Ends: 13d, 23h  |   5 Proposals
Hi, I need help in the field of power electronics modeling and simulation. I need a professional help in a book I'm currently reading " Power electronics converters modeling and control" by Seddik Bacha. Thanks
Category: Electrical       

R****_PE
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| R****_PE
|    Canada
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 28, 2015  |  Ends: 13d, 19h  |   19 Proposals
Programming of microcontrollers as well as PCB design and software review. I am based in worcester ma.
Category: Electrical       

S****gal
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| S****gal
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 28, 2015  |  Ends: 13d, 19h  |   4 Proposals
Programming of microcontrollers as well as PCB design and software review. I am based in worcester ma.
Category: Electrical       

S****gal
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| S****gal
|    United States
Hourly Rate: $20 - $30 / hr   |  Duration: 1-3 months  |  Posted: Jun 28, 2015  |  Ends: 5d, 17h  |   2 Proposals
Hi there, I am going do design a product that is based on Light Coded Transmission. Right now I am blank. I have little bit info regarding this. I am talking about " LiFi ". I need a person who can guide me on this. I need a proper working prototype and later we will work on manufacturing process. Please mention your approach and tell me exact time to finish this. Is this possible or not ? Best Regards
Category: Electrical       

E****Ali
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| E****Ali
|    Pakistan
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 28, 2015  |  Ends: 13d, 14h  |   1 Proposal
We have a hydraulic power plant on a large piece of mobile plant. The diesel engine is mounted inside a cabinet much like a Genset. We want someone to do an acoustic simulation of the system so we can compare it to actual measurements and then when it is correct use it to predict different baffle or acoustic damping systems. The systems are used on urban civil construction so we want to reduce the acoustic signature as much as practicable. The project will be completed via gateways. The first being to develop or acquire an acoustic model of the engine including fan and exhaust. This may be available from the engine manufacturer or other source. You would be responsible for acquiring this model. The second gateway will be to embed the engine model in the equipment carriage model. We would provide the engineering diagrams for this as Autodesk Inventor models. This would then be used to predict the acoustic footprint of the machine. The third gateway would be to tweak the model...
Category: Other - Engineering &...       

J****sNT
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| J****sNT
|    Vietnam
Fixed Price: Less than $500   |  Posted: Jun 27, 2015  |  Ends: 4d, 22h  |   11 Proposals
This job is to write 10 articles, All articles must be 500-600 words. Review article have the same format with this article (  [obscured]  /cuisinart-electric-pressure-cooker-product-review-194137). I will pay $4-$6 for this article. If this works out well, I anticipate it turning into a long-term job (with potentially hundreds of more articles). Key requirements for this project: IMPORTANT: The articles MUST BE 100% UNIQUE, with good English grammar and spelling. Key qualifications: 1) Strong English writing skills. 2) Experience with SEO-writing ? In particular, you will need to write each article title in such a way that it is optimized for search engines (i.e. you should strategically select titles that contain phrases and keywords that receive at least some search volume from Google)
Category: Article Writing       

h****vin
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| h****vin
|    Vietnam
Fixed Price: $500 - $1,000   |  Posted: Jun 27, 2015  |  Ends: 4d, 19h  |   16 Proposals
We are seeking an embedded design engineer to create a microcontroller-based Bluetooth wearable device. Applicants will be asked to design and prototype a version 1.0 of the device, estimated budget for this phase is $1000. We will likely hire multiple candidates for this phase to find the best developer. The chosen developer will be asked to complete the rest of the project. If this does not make sense, let me know. The basic requirements for version 1.0 are as follows: The device shall use Bluetooth Low Energy (4.0+) protocols. The device shall connect/pair with Bluetooth LE-supported devices, such as smartphones. The device shall be watch-size. The device shall vibrate upon command from the connected smartphone. The device shall have a lithium-polymer battery charging circuit. The device shall send battery level information to the connected smartphone. More detailed requirements will be provided to the chosen candidate(s)....
Category: Electrical       

j****325
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| j****325
|    United States
Fixed Price: Not Sure   |  Posted: Jun 27, 2015  |  Ends: 12d, 16h  |   18 Proposals
We are looking for an embedded designer that has proficiency integrating Xbee with a Pic or Micro for a wireless sensor project. Experience with Digi Xbee gateway is highly preferred as we will use the Digi gateway for integrating and connecting with the remote sensors.
Category: Electrical       
Skills: PCB Design, Embedded System, xbee       

s****rks
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| s****rks
|    United States
Fixed Price: About $20   |  Posted: Jun 27, 2015  |  Ends: 12d, 6h  |   6 Proposals
i need someone to write a code for sawtooth, reverse sawtooth and noise waveforms using an arduino uno with a frequency between 1hz to 500hz
Category: Electrical       
Skills: Arduino       

r****m32
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| r****m32
|    United States
Hourly Rate: $13 - $17 / hr   |  Duration: Not Sure  |  Posted: Jun 26, 2015  |  Ends: 12d, 1h  |   0 Proposals
I started with a remodeling company doing, additions in homes and after doing a little bit of plumbing, drywalling, tiling, and electrical i finally decide my career. I fell in love with electrical because its not easy, just something anyone can do, its a art of its own, with that being said should be treated like art. While i work i make sure im am careful and double check everything because i understand that my work quality will affect lives. Its not something to play with it, electricity can do as much harm as its done good for us if not done in the correct manor. This is why i know i am the man to contact for the job. My expertise is in the residential side
Category: Electrical       
Preferred Location: United States

a****781
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| a****781
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: Jun 26, 2015  |  Ends: 26d, 17h  |   17 Proposals
Short description: In this system, each table in the restaurant gets a battery powered wireless calling device with buttons. When pressed, this calling device sends a wireless zigbee or generic 2.4GHz message that will be received by one or more of the base stations of the system, which are based on Raspberry PI A+. The master base station memorizes the call status for each transmitter so that said information can later be polled over wifi and displayed by apps run in smartphones worn by the waiters. The apps for said smartphones are developed in a separate project ? you don't have to develop them. Deliverables for this project: ? For the calling device; scematics, PCB layout, MCU firmware ? For the Raspberry base station; software (including installer script that makes the software start upon boot) All software must be delivered with source code, and all source code must be professionally written and well documented in English. Suggested milestones (open to discussion before proje...
Category: Electrical       
Preferred Location: Eastern Europe, India/Southern Asia, Eastern Asia

I****tor
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| I****tor
|    Sweden
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