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Fixed Price: Not Sure   |  Posted: 8h, 53m ago  |  Ends: 14d, 15h  |   2 Proposals
I would like to produce a book that reads stories out loud, similar to children's books that have farm animal sounds, but with sleeker/thinner electronics. The final product will read out around 2 hours of pre-recorded audio, have headphones, a way of detecting where in the text the reader is, and long battery life. I am looking for an electronics designer who can design the thinnest, most elegant solution and coordinate the Chinese/other manufacturers to deliver the design.
Category: Electrical       
Preferred Location: North America, Western Europe, Eastern Europe

m****hus
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| m****hus
|    United Kingdom
Fixed Price: Less than $500   |  Posted: 8h, 53m ago  |  Ends: 14d, 15h  |   2 Proposals
I need to modify my firmware that i mount on arduino uno to let visual basic (2010 express) read trought FIRMATA protocol the DS18B20 sensors temperature (including discovering of the probes) and Temperature+humidity from a DHT22 (am2302) sensor.
Category: Electrical       

l****777
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| l****777
|    Italy
Fixed Price: Not Sure   |  Posted: 23h, 24m ago  |  Ends: 14d, 0h  |   2 Proposals
Hello, I need to get data from compressor machines via Internet. The compressors are from KAESER manufacturer and use Sigma control and sigma control 2. The objective is to connect a device via profibus to the controller. The device will get the data from compressor and send it periodically to a webserver or Database. We need an expert in Profibus/profinet technologies that can give us advice on how get the data from controllers via remotely. Also,If you already have a solution/hardware that do what we need, we will be interested in buy it and import it to Mexico. Thanks.
Category: Electrical       
Skills: Kaeser, profibus, profinet, sigma controller       

l****net
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| l****net
|    Mexico
Fixed Price: $1,000 - $5,000   |  Posted: Jul 04, 2015  |  Ends: 13d, 8h  |   7 Proposals
The task is simple, recreate the teensy 3.1 with the same number of pins and specs, just make it as thin as possible using thinner pcb, chips on the back, etc. Bidders must provide evidence that they have experience designing and producing electrical chips. We need someone that can take this project through to a working prototype. If after thorough testing we agree that it performs to our satisfaction, we will look to produce the chips in some quantity but what you should bid for is just for building us a prototype.
Category: Electrical       

h****eye
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| h****eye
|    Canada
Fixed Price: $500 - $1,000   |  Posted: Jul 04, 2015  |  Ends: 13d, 4h  |   3 Proposals
ITALIANO: Ricerchiamo un ingegnere elettronico con esperienza nella programmazione FPGA e generica e nel campo di crittografia, per collaborare allo sviluppo di un miner per l'algoritmo script (litecoin, dogecoin). preferibilmente italiano ma non necessariamente. Il progetto prevede la realizzazione di un miner con un potenza congrua alle difficoltà di mining attuali, pensavamo ad un 400MHs/s o superiore: possiamo fornire: - esperienza decennale nella realizzazioni di master e pcb anche multuilayer e disponiamo di software avanzato per il disegno elettronico -abbiamo accesso illimitato e gratutito ad un infinità di componenti elettronici -realizzazione dei PCB e prototipi rapidissima e presso un nostro terzista di fiducia a basso costo -possibilità di reperire facilmente E RAPIDAMENTE I COMPONENTI NECESSARI RICHIEDIAMO UNA PERSONA SERIA E CON ESPERIENZA ED APPASSIONATA NEL CAMPO DELLE CRYPTOVALUTE, PER LO SVILUPPO DELLO SCHEMA ELETTRICO E PER L'EVENTUALE PROGRAMMAZIONE. DISPONIBI...
Category: Electrical       

p****964
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| p****964
|    Italy
Fixed Price: $50 - $100   |  Posted: Jul 03, 2015  |  Ends: 12d, 16h  |   5 Proposals
I need someone to help me in designing a usb wrist cable for charging cell phones that can be worn as a bracelet.
Category: Electrical       

N****007
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| N****007
|    Saudi Arabia
Fixed Price: Not Sure   |  Posted: Jul 03, 2015  |  Ends: 12d, 12h  |   16 Proposals
I need to build a control device for something I'm building. I need to control a stepper motor to feed a wire, and then I need a 1-3 second delay, and then move a separate servo motor, to control a lever. I will build all the other components, I just need someone to provide me with all the electronic components (Arduino, Button, small readout Screen, 1 Stepper, 1 servo motor etc...). Here is what I would ideally like: 1. 2 button control (with a display) - 1st button will start the action (GO) - 2nd button will control count (So I would like to repeat the Go function 1 - 9 times) 2. So when the User presses the GO button, the Stepper motor will feed Slowly lets 360 Deg (I will need to able to change this in the code, because I need to specify the length and speed of the feed, which I need to measure after installation) - This motor dosn't have to be strong at all, I'm just feeding a small wire with this. 3 Once the stepper finishes its move I would like 1-3 second delay...
Category: Electrical       

d****hbt
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| d****hbt
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: Jul 03, 2015  |  Ends: 23d, 8h  |   7 Proposals
Static Voltage Stabilizer To design and build prototype of fully solid-state static voltage stabilizer using IGBT/ MOSFET in PWM AC Chopper/Inverter topology with Buck Boost Transformer with any suitable DSP IC # Deliverables WORKER MUST PROVIDE : 1. Complete and detailed Schematic Diagram of the product. 2. Complete artwork of the PCB including laser print out of the tracks and pads, laser print out of component layout (silk screen), laser print out of soldering masking (Green masking). 3. Complete component list and location of the components on PCB. 4. Explanation of the working theory. 5. Assembling and testing methods. 6. Fault finding / trouble shooting. 7. Full winding details of the transformer 8. Wiring details 9. source code and hex code. 10. detail schematic in pdf, simulated schematics in proteus v.7.6 detail PCB in pdf format (single sided) complete source code in c_language with hex file. 11. Three assembled and tested cards suita...
Category: Electrical       

i****ani
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| i****ani
|    India
Fixed Price: Not Sure   |  Posted: Jul 02, 2015  |  Ends: 11d, 13h  |   11 Proposals
1) RFID based locking solution (Mandatory) ? Making an RFID based lock. ? Integrating the RFID based lock with the Raspberry Pi/Black Beagle. ? The Raspberry Pi should contain the database of RFID tags, which can be updated via an online server (Azure Web can be used to create the web interface), and we should be able to add the RFID tags directly using the web server. ? We must be able to get the logging data (check in time, checkout time, RFID tag no.) on either a note or excel sheet. ? Remember, only one user should be able to use the locker at any given point of time. Reference to how it may look like:   [obscured]  /watch?v=4lra1Y2RsWM 2) Temperature control ? Will be using a simple exhaust fan connected to a relay. ? Measure the temperature using a temperature sensor. ? The raspberry pi should signal the relay to turn on the fan when temperature inside the locker goes above 77 degrees Fahrenheit. 3) Capturing videos and streaming our Internet. ? We need to capture ima...
Category: Electrical       

j****ota
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| j****ota
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: Jul 02, 2015  |  Ends: 3d, 10h  |   8 Proposals
We are looking for a talented FPGA programmer to help us implement a low noise (<10nV/(rootHz)) lock-in amplifier for heterodyne detection of sideband signals. Carrier frequencies range from 0.3 to 1.5MHz. The lock-in amplifier must have the ability to generate signals at specified frequencies and demodulate signals at the sum or difference of two frequencies (FM/heterodyne detection). Your job will be to develop a working prototype that does the following: 1) Takes in signals via a high speed, 16bit ADC 2) Generates a sine wave with programmable amplitude (ranging from 0 to 5V) and frequency, f2 = (1 to 1000Hz) 3) Demodulates the signals at two frequencies f1+f2, f1+2f2. f1 is determined from the DAC input. f2 is the frequency generated in step #2. 4) Outputs the RMS amplitude of the two demodulated signals via a low noise, 16bit DAC. We have an ADC and FPGA eval board already chosen, part #'s AD9268 and HSC-ADC-EVALCZ from Analog. You will need to help us choose the DAC and fi...
Category: Electrical       

N****lIR
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| N****lIR
|    United States
Fixed Price: Less than $500   |  Posted: Jun 30, 2015  |  Ends: 9d, 15h  |   9 Proposals
I require a simple Psoc design (cypress chip), which includes: -filter -amplifier -automated gain controller -peak detector. More detail will be provided to negotiate the task at hand.
Category: Electrical       

a****821
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| a****821
|    Australia
Fixed Price: Not Sure   |  Posted: Jun 29, 2015  |  Ends: 8d, 20h  |   10 Proposals
This will be a taxi security cam. It will take photos at certain intervals, store them temporary in the SD and push them to internet to be accessed afterwards. To simplify the schematics, the camera clock should be provided by arduino. I would like to use the OV7670 non-serial camera as it could be found relatively easy in Argentina. And arduino mini or micro. If possible. There are some examples of this camera with arduino on the internet Thanks
Category: Electrical       
Preferred Location: North America, Western Europe, Eastern Europe, India/Southern Asia, Eastern Asia, Middle East & Central Asia, Africa, Australia/Oceania

b****ork
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| b****ork
|    Argentina
Fixed Price: Less than $500   |  Posted: Jun 29, 2015  |  Ends: 8d, 14h  |   12 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: Not Sure   |  Posted: Jun 29, 2015  |  Ends: 8d, 9h  |   4 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: $500 - $1,000   |  Posted: Jun 29, 2015  |  Ends: 23d, 2h  |   4 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: Jun 27, 2015  |  Ends: 6d, 10h  |   24 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: 5d, 23h  |   7 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
Fixed Price: $1,000 - $5,000   |  Posted: Jun 26, 2015  |  Ends: 20d, 10h  |   23 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
Fixed Price: $500 - $1,000   |  Posted: Jun 25, 2015  |  Ends: 19d, 17h  |   26 Proposals
I have a prototype, but need someone that can make a battery to last longer and someone to make its design more clean and smaller. If anyone has experience please get in touch with me as soon as possible.
Category: Electrical       

M****539
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| M****539
|    United States
Fixed Price: $1,000 or less   |  Posted: Jun 25, 2015  |  Ends: 4d, 16h  |   26 Proposals
We need to have 3 different circuit boards manufactured. All of them will be less than 1.5 square inches. PCBs are currently being designed and should be done next week. Parts for each board are estimate at $10 per board from mouser. Most parts will need to be surface soldered on.
Category: Electrical       
Skills: Integrated Circuits, Circuit Assembly       

d****ion
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| d****ion
|    United States
Fixed Price: Less than $500   |  Posted: Jun 25, 2015  |  Ends: 4d, 13h  |   27 Proposals
Requires on off switch or method for going into sleep mode. The circuit board and components need to be as small as possible.
Category: Electrical       

s****ell
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| s****ell
|    United States
Fixed Price: Not Sure   |  Posted: Jun 25, 2015  |  Ends: 4d, 10h  |   14 Proposals
design is already made in proteus 8, only two things need getting sorted Move switch 1 inch below, move 5 pins header to further side
Category: Electrical       

B****rat
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| B****rat
|    United Kingdom
Fixed Price: $50 - $150   |  Posted: Jun 24, 2015  |  Ends: 3d, 19h  |   13 Proposals
Need to design an Ultrasonic motion sensor and notfyer to be installed in the wheel arches of a car. Need the design to be able to build the unit myself. This project is to avoid parking tickets my creating notification when a parking officer marks my car tyres with chalk. When the parking officer moved their hand under the wheel arch the movement will be detected and I will be notified by text, email or key fob beeper. ( Range required approx 500m and within a building) The sensor could be mounted under the wheel arches ( the 2 front) or on the body of the car above the wheel arches. Ideally the components to build the project will be less that $250 and be available from online sellers. I imagine Arduino or rasberry pi will be the best options for a controller. Ideally the unit will be battery powered so I dont have to wire it into the car. With the bulk of the unit being attached to the dash an an on off switch so I can arm the unit when I get out of the car. Ideally the plans ...
Category: Electrical       
Skills: Electrical Engineering, Electronics       

m****b33
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| m****b33
|    Australia
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