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Time Left: Less than 7 days
Fixed Price: $120 or less   |  Posted: 14h, 57m ago  |  Ends: 6d, 9h  |   2 Proposals
I need a program for an Arduino board so that it can generate 2 types of PWM. 1. Space Vector PWM - SVPWM 2. Hysteresis band current control PWM The user must be able to select the type of PWM that he wants and the frequency (1-200 Hz). The frequency will not be changed with a potensiometer because of the noise but from the serial monitor. The system is intented to work with a SINGLE-phase inverter. The Arduino board that will be selected will be arduino uno. The final deliverable should be the arduino code files with extensive comment documentation.
Category: Electrical       

n****pas
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| n****pas
|    Greece
Fixed Price: $50 - $82   |  Posted: 21h, 42m ago  |  Ends: 1d, 2h  |   5 Proposals
need expert in math - communication engineer in order to derive some formulas related to wireless communication more details will be sent later
Category: Electrical       

m****lab
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| m****lab
|    Jordan
Fixed Price: $50 - $80   |  Posted: 22h, 55m ago  |  Ends: 1d, 1h  |   7 Proposals
need expert in math - communication engineer in order to derive some formulas related to wireless communication more details will be sent later
Category: Electrical       

m****lab
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| m****lab
|    Jordan
Fixed Price: $100 - $250   |  Posted: May 14, 2015  |  Ends: 6d, 17h  |   9 Proposals
I want to build a 2-bedroom cottage in a remote area where sun is aplenty (Siem Reap region in Cambodia), but where I cannot count on a reliable utility company. Therefore, I need to put together a self-sustainable source of electricity (110V-50Hz) for the lighting, fridge and some electronic devices (TV, radio, computer, etc.). I estimate my needs to require at least a battery storage capacity of 3KW battery storage (looking at the newly-announced Tesla Powerwall, but a bank of gel deep cycle (200Ah) batteries could also do the job. I did some research and found most of the major components I need (PV panels, MPPT charger, batteries, Inverter). I am looking for someone qualified to: 1) Validate my components for compatibility and balance. 2) Provide a more complete BOM, including jump cables, wiring, junction boxes, switches, remote control panel, etc. 3) Draw a detailed diagram of how the various components are attached to one another, with proper minimum distance between them if...
Category: Electrical       

V****run
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| V****run
|    Canada
Fixed Price: Less than $500   |  Posted: May 14, 2015  |  Ends: 6d, 9h  |   5 Proposals
I have made a electronic temperature control unit prototype and want to send it to USA Manchester state to my client. Is there any one who can help me in this regard. I would prefer people from Pakistan who can take it from me and send it to my client. I shall give you complete address of USA Manchester state.
Category: Electrical       

m****k14
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| m****k14
|    Pakistan
Fixed Price: Less than $500   |  Posted: May 13, 2015  |  Ends: 6d, 0h  |   9 Proposals
We need to make an electrical plan for an electric meter service entrance. The electrical plan will involve the connection of two electric meters, one for export and one for import. The plan should also show detail of wiring size of circuit breaker and metal tubing to be used.
Category: Electrical       

F****M21
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| F****M21
|    Philippines
Fixed Price: Less than $500   |  Posted: May 13, 2015  |  Ends: 5d, 19h  |   9 Proposals
The speaker will need to be inserted into the shoulders of a shirt with a cord to run down the sleeve to plun in to a smartphone or MP3 player. Dimensions should be around 2 inches by 2 inches by no more than 1/4 inch thick. I have photos for a model I made but it lacks amplification. Please take a look at the photos and let me know your thoughts.
Category: Electrical       

e****aac
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| e****aac
|    United States
Fixed Price: Less than $500   |  Posted: May 13, 2015  |  Ends: 5d, 18h  |   17 Proposals
Hi Guys, I am stuck with MOSFET over heating issues. I really need to resolve this fast. Behind schedule and over budget. How is $100 to the first person who steers me to success? Details are here ...   [obscured]  /support/power_management/non-isolated_dcdc/f/196/p/421954/1508657#1508657 I prefer not to award this to any single person, and tie this up longer. I need suggestions / answers immediately. Once I get the circuit to work from your guidance, I can award / pay. I am hoping to find a power expert that has seen and fought this fight before, not just anyone who is tossing out random suggestions (although I would take that now)
Category: Electrical       

r****ics
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| r****ics
|    United States
Fixed Price: $500 - $1,000   |  Posted: May 13, 2015  |  Ends: 5d, 16h  |   21 Proposals
Hi, I am putting together an electronic device and I need someone with an electronics background to give me a price list from manufacturers or distributors for each of the parts needed. I need to have a price list for quantities at 10 (testing), 1000, and 10,000+. I have attached the list of components here. For each of the prices, I need the contact of the person at the manufacturer/ distributor and a reliable quote for the pricing of each component. I am very time sensitive for this project so please only respond if you think that you can complete the project in 10 days. Thanks!
Category: Electrical       

c****t06
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| c****t06
|    United States
Fixed Price: Not Sure   |  Posted: May 13, 2015  |  Ends: 5d, 11h  |   2 Proposals
We are creating a whitepaper on current and future functions and features of smart phones. We are seeking talented individuals such as electrical engineers to work on this exciting project with us. Are you on the cutting edge of smart phone technology? If so send us your details along with your skill-set and why you would be a good fit for this project.
Category: Electrical       

s****ode
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| s****ode
|    United Kingdom
Fixed Price: Less than $500   |  Posted: May 12, 2015  |  Ends: 4d, 23h  |   11 Proposals
PCBA specifications are: 1. Quad band GSM 850/900/1800/1900 MHz (2G) 2. GPS Position Accuracy 1m - 5m (Better Accuracy is Welcome) 3. Hot start 1sec.,average 4. Cold start 23 sec.,average 5. Fallback GSM position 6. Dimension the smallest that you can, in example 60mm x 2,3 mm; low thickness including battery about 0,5mm 7. Motion Sensor 8. Voltage 3.7V (Lithium Ion rechargeable); 3 days or more in stand-by mode 9. MICRO USB charging system 10. Average Current When stand-by < 17 microamp 11. Device configuration by SMS text message or if possible through Android or IOS application. Thanks Regards
Category: Electrical       

p****are
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| p****are
|    Italy
Fixed Price: Less than $500   |  Posted: May 12, 2015  |  Ends: 4d, 16h  |   17 Proposals
Hi I am looking for someone to design the circuit (Schematics and PCB) for an ultrasonic distance sensor. Here is what the project involves: 1. I have attached the specs of the sensor... It's the one you should use. 2. You need to pick one of the two components/designs below and go with that... one is from Analog Devices and one is from TI. ADI:   [obscured]  /media/en/reference-design-documentation/reference-designs/CN0343.pdf TI:   [obscured]  /lit/ds/symlink/pga450-q1.pdf 3. I need to be able to program some simple parameters (and also some filter coefficients) so access to the processor by me is a must. You need to let me know if I need an ICE or development environment, etc. IF the processor is not built into the ultrasonic sensor IC, then I would like to use an Arduino serial port to talk to the sensor board. 4. Power consumption is key... System will be running off of battery
Category: Electrical       
Skills: Electrical Engineering, Electronics       

a****ani
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| a****ani
|    United States
Fixed Price: Less than $500   |  Posted: May 11, 2015  |  Ends: 3d, 21h  |   27 Proposals
Looking to have someone design a small circuit for me, I will give more information in person. Looking for someone who can deliver quickly
Category: Electrical       

P****360
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| P****360
|    Canada
Fixed Price: Less than $500   |  Posted: May 11, 2015  |  Ends: 3d, 20h  |   7 Proposals
Hello, My buddy and I thought it would be cool to make a wirelessly chargeable night light for my son and are stuck at this point. In order to finish our little project we are just looking to develop a way to wirelessly charge a LIR2450. On the receiver, we have about 1.5" diameter to work with for the coils. Is there an off-the-shelf transmitter we can use? If not, what is the transmitter circuit. Can this work with an off-the-shelf AC/DC converter? We also need the transmitter to go into standby when not charging. What is the receive circuit? Maybe this is a quick answer and a "quick buck" for someone. As this is a fun project, we don't have a big budget so ridiculous offers will be ignored. :) If you don't have any answers but can point us in the right direction, that would be helpful as well. Thanks, Jared
Category: Electrical       
Skills: Electrical Engineering, Electronics       

j****ity
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| j****ity
|    United States
Fixed Price: More than $10,000   |  Posted: May 11, 2015  |  Ends: 3d, 17h  |   15 Proposals
Need experienced Embedded Systems - CAN Driver software engineer for Freescale micro. This it's a great opportunity.
Category: Electrical       
Skills: Embedded Systems       

j****kay
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| j****kay
|    United States
Fixed Price: Not Sure   |  Posted: May 11, 2015  |  Ends: 3d, 9h  |   8 Proposals
I need help designing an amplifier. Below is the spec needed 2x 50W (min) Class A/D Digital to analog converter Optical, Coaxial & USB digital inputs. 2 x RCA Analog input 1 x Phonostage 1 x XLR analog input Wireless module for audio transfer (not bluetooth)
Category: Electrical       

A****rth
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| A****rth
|    United Kingdom
Fixed Price: $1,000 - $5,000   |  Posted: May 10, 2015  |  Ends: 2d, 5h  |   16 Proposals
We are working on a project that uses Raspberry Pies and currently use serial-to-usb convertors to receive serial input from 2 sources. We lack opto isolation & this is not a solution we can repeat without great effort. So instead we need a board designed that does that and is easy to add to the Raspberry Pi. Design a board that has at least 2 (serial) inputs (more = better) with opto isolation. Every incoming connection will be a copper cable pair, not your typical 9-pin serial port. We also need guidance with where to have these made, in greater numbers (500 at least). Please propose what you can create as a board (how many inputs, and don't forget to opto-isolate every input) and what your estimated size and production price board would be, based on a rough estimate of the parts used & production process cost. #THANK YOU
Category: Electrical       

k****cho
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| k****cho
|    Belgium
Fixed Price: Not Sure   |  Posted: May 08, 2015  |  Ends: 20h, 54m  |   15 Proposals
Hi, I'm looking for a US based EE to design and prototype and simple circuit with a 4 digit 7 segment LCD display, a hall-effect sensor, and a pushbutton. The circuit should have a footprint no larger than 90mm x 45mm x 12mm The basic operation is that clicking the button increments the count while the state of the hall effect sensor determines how the count is incremented. There is more detail than that, but those are the basics. Please quote both the development cost and ballpark cost and lead time for making 20 units. Final deliverables need to include layout files for production as well as all firmware.
Category: Electrical       

v****din
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| v****din
|    United States
Fixed Price: Less than $500   |  Posted: May 08, 2015  |  Ends: 17h, 17m  |   5 Proposals
Dear Elancers, Nice to meet you. I need design done for smartwatch. That means I need to know all components for the build, how much they will cost etc. The smartwatch should be very simple. Only thing I want it to be connected with app I will create. App on phones. Whenever somebody buys watch design in the app on the phone, the design will be send to the watch and watch clock will change according to the design bought within the phone app. Can somebody create a smartwatch components/build design with these features? Only feature the smartwatch has to have is to be able to receive the clock design from the phone app. Thank you, Jiri Beran
Category: Electrical       
Skills: Electrical Engineering, Electronics       

j****_12
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| j****_12 *
|    Czech Republic
Fixed Price: Not Sure   |  Posted: May 08, 2015  |  Ends: 15h, 23m  |   15 Proposals
Key skills: Electrical Design & Drawings, Electrical SLD, reports & documentations, Electrical codes & standards knowledge, electrical safety etc
Category: Electrical       

e****tro
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| e****tro
Fixed Price: About $100   |  Posted: May 08, 2015  |  Ends: 14h, 44m  |   4 Proposals
Hi, I have a work for modelling STATCOM based system. The work need to have some modification based on below existing examples from Mathworks:   [obscured]  /help/physmod/sps/examples/statcom-detailed-model.html   [obscured]  /help/physmod/sps/examples/d-statcom-average-model.html?refresh=true The simulation work needs to be based on Matlab/Simulink. Please let me know if you are interested.
Category: Electrical       

G****tor
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| G****tor
|    China
Fixed Price: Less than $500   |  Posted: May 08, 2015  |  Ends: 10h, 15m  |   1 Proposal
Singapore hospital requires commissioning of a simple laboratory device - on site electrical safety test (current leakage) under IEA 61010 for the instrument, using a calibrated ESA. Job site - Singapore. Time - no more than half an hour. Target Date of inspection - 12th May 2015.
Category: Electrical       
Skills: Electrical Engineering       

z****a06
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| z****a06
Fixed Price: $500 - $1,000   |  Posted: May 08, 2015  |  Ends: 8h, 39m  |   29 Proposals
I need to put 3-4 components on one pcb. They are as following: 1) Using arduino pro mini (so no usb connection is needed) 2) TCS34725 color sensor, I've built prototypes using   [obscured]  /products/1334 so it should have the same functionality. 3) HM-10 or HM-11 for bluetooth communication connected to the rx/tx of the arduino 4) circuit to produce 5v from 2 AAA 1.5v batteries. This should be on a single PCB. For the project to complete, I would order the a few PCB's to be made and all the parts which you will be sent to the contractor with mail. The contractor should assemble and test and also send me an assembled unit to test with. Please quote me the cost for the PCB design and also the cost to solder all the parts on a PCB once it is made. We would work with milestones. Thanks
Category: Electrical       

e****ge
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| e****ge
|    Turkey
Fixed Price: $500 - $1,000   |  Posted: Apr 27, 2015  |  Ends: 4d, 3h  |   17 Proposals
I need a device that is both GPS and Bluetooth capable that is able to connect with other devices of the same type (via Bluetooth). It has to be done quickly and display the distance between it and other devices (via GPS). I will disclose more details once we sign a non-disclosure agreement.
Category: Electrical       
Skills: Electrical Engineering, Electronics       

H****LLC
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| H****LLC
|    United States
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