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Fixed Price: $500 - $1,000   |  Posted: 4h, 11m ago  |  Closed  |   0 Proposals
I would like to verify and complete an existing unfinished wireless power circuit design, as it currently does not work. This design was originally designed as apart of an R&D project by another engineer, however it was stalled and the engineer is no longer with us and this is the remaining information of the circuit (see attachments). As this area is beyond my expertise, I would like help in completing the design. Please provide any appropriate workings and changes to the design. The distance between the transmitter and receiver is not as important as long as it has a minimum of distance of 20cm or more. I look forward to your assistance.
Category: Electrical       
Skills: Electrical Engineering, Electronics       

****
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| Client
|    Australia
Hourly Rate: Less than $10 / hr   |  Duration: 1-2 weeks  |  Posted: 6h, 27m ago  |  Ends: 14d, 17h  |   4 Proposals
I would like to create a wireless serial comm port connection via gsm module. I want to replace my Rs232 USB cable.
Category: Electrical       
Skills: C, Arduino       

h****ono
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| h****ono
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: 13h, 9m ago  |  Ends: 14d, 10h  |   6 Proposals
We are soliciting help in designing and building a wifi enabled strain gage system of sensors mounted to a composite hockey stick, to gather structural force data in-situ. We've done some early work and need to develop a more robust user-friendly set of components that can be produced and used in the field to gather data.
Category: Electrical       
Skills: Industrial Design, Electronics       
Preferred Location: United States

i****ior
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| i****ior
|    United States
Fixed Price: $500 - $1,000   |  Posted: Jul 05, 2015  |  Ends: 13d, 11h  |   8 Proposals
I am looking for someone to make a very simple analog sensor wireless with a tiny, rechargeable digital i/o board. Able to communicate in real time with an arduino to output time stamped data. I also would like a simple graphical output (can be built in Processing or Python or whatever you wish). This should be a simple job for someone familiar with arduino and embedded systems. If this works out, there are other assignments which could be forthcoming.
Category: Other - Engineering &...       
Preferred Location: United States

j****dia
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| j****dia
|    United States
Fixed Price: Less than $500   |  Posted: Jul 04, 2015  |  Ends: 12d, 14h  |   8 Proposals
i am seeking a person who knows about arduino .i need circuit and pcb layout design for arduino based home automation system.
Category: Product Design       

b****i09
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| b****i09
|    India
Fixed Price: Not Sure   |  Posted: Jul 02, 2015  |  Ends: 10d, 11h  |   5 Proposals
i need an engineer to design me a device that is hooked up to the owner's shower. This device will be able to turn on the shower or bath with the press of a button. It should be as easy to press as an iphone. The device will also be able to connect to the owner's bluetooth on whatever wireless device. The device will have some kind of speaker implemented into it that will allow for music to play through. The device will also let owner choose temperature. They can control the temperature by increasing or decreasing by pressing up & down arrows. The hotter the temperature the redder the numbers get. Colder they get bluer.
Category: Product Design       

t****093
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| t****093 *
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jul 02, 2015  |  Ends: 10d, 4h  |   5 Proposals
Safety Belt - Strap & Buckle - with internal remote locking/un-locking with hand held remote control (like a key chain for car doors). Needs to be wireless with battery in main unit/buckle and key chain. Must hold up to 800lbs in holding/pulling pressure.
Category: Product Design       
Preferred Location: United States

b****are
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| b****are *
|    United States
Fixed Price: Not Sure   |  Posted: Jun 30, 2015  |  Closed  |   6 Proposals
Design all electronics for a sensor that use a voice recognition module. See attached PDF for manufacturer. Can use an alternative module, but needs to receive english words. This module uses pre-programmed typed words that systems listens for. Other modules need to be trained. Would consider other modules, but design fee needs to include simple method to activate voice training. When module detects words- data of this will be sent over TCP/IP via wifi to our server. It would send sensor ID, event, date, and time. Currently we a re using ESP8266 for wifi in other sensors. Good low cost. The sensor will need a method to connect it to the wifi network. Bluetooth or other very simple method. Creating the app to accomplish this should be included. All firmware to be included. The bid should include building 3 test units and all documentation for sourcing in for production in China.
Category: Electrical       
Skills: Electrical Engineering, TCP/IP, Electronics       

J****erg
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| J****erg
|    United States
Fixed Price: Less than $500   |  Posted: Jun 29, 2015  |  Ends: 7d, 8h  |   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: $500 - $1,000   |  Posted: Jun 29, 2015  |  Ends: 21d, 20h  |   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: $2,000 or less   |  Posted: Jun 28, 2015  |  Ends: 5d, 23h  |   19 Proposals
Device functionality: -Soil moisture and PH sensor probe (non-corrosive) planted into ground -Daily soil moisture and PH Readings transmitted via SMS to mobile phone -Solar power as primary source with battery cell as secondary source -Power on only when a reading is to be taken -GPS tracker -Data not stored on device -Housed in waterproof casing Requirement: Construct a finished circuit prototype that fits my external design outline. External design illustration will be provided to shortlisted candidate
Category: Product Design       

N****n_A
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| N****n_A
|    United Kingdom
Fixed Price: Not Sure   |  Posted: Jun 27, 2015  |  Ends: 5d, 4h  |   25 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: $1,000 - $5,000   |  Posted: Jun 26, 2015  |  Ends: 19d, 4h  |   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: $50 - $150   |  Posted: Jun 24, 2015  |  Ends: 2d, 13h  |   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
Hourly Rate: Not Sure   |  Duration: 3-4 weeks  |  Posted: Jun 23, 2015  |  Ends: 1d, 2h  |   5 Proposals
We're looking for an electronics engineer/designer (or company) to consult with and build/ program a wifi cam that has these basic features: - record 1080p video - with 8 built-in infrared LEDs for night vision - zoom in and out using the 8X digital zoom - with a mic and speaker - set up a daily schedule to tell the cam when to turn on and off - can detect motion and send message and GIF to the users - can upload the video to cloud for storage and sharing Your role would be to keep in constant communication and exchange ideas about the designing and building and programming of the device. You will need to be able to build and program one prototype, and then replicate to a handful of copies for test. Another request is to optimize the PCB design for SMC and the programming involved and create the documentation needed for mass production. Also, please guide through the process with testing and QA. If you're interested in this project, please contact us to get exact details and the wh...
Category: Electrical       

m****hoi
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| m****hoi
|    Hong Kong SAR, PRC
Fixed Price: Less than $500   |  Posted: Jun 23, 2015  |  Closed  |   1 Proposal
Wireless communication Wireless sensor network Electrical Job Description: We are looking for a talented WSN Survey writter Your responsibilities: - Literature Review - Derive Algorithm - Write clean, modular, robust code to implement the desired requirements - Drive a complete and future conculusion Your qualifications: - A work style that is extremely detail oriented - A complete Elance profile - References or an established Elance reputation preferred
Category: Electrical       

t****ait
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| t****ait
|    New Zealand
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 22, 2015  |  Closed  |   8 Proposals
Need expertise in developing firmware for Nordic device with specific experience accomplishing the following objectives: Collecting data from peripheral devices and storing the data in flash memory Developing a circular buffer and "dirty" page to manage a portion of flash memory for peripheral data Using the Nordic Bluetooth SoftDevice API set to transmit data from memory to a iOS mobile device. Managing the flash memory when data is transmitted from memory to the mobile device. Ability to develop a simple iOS application that connects to the Nordic SOC and captures the raw data in flash memory. Responses should highlight actual work with Nordic SOC and examples of work related to above objectives. Desire is to have immediate and full-time availability to complete this work.
Category: Electrical       
Skills: Electrical Engineering, Electronics       

j****yiv
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| j****yiv
|    United States
Fixed Price: $500 - $1,000   |  Posted: Jun 21, 2015  |  Closed  |   14 Proposals
We are seeking to be a Vibration Sensor prototype with Android/iPhone app to gather data. The sensor purpose is to be used to attached to machines (i.e. vending machines, coolers, fridges) to measure vibration levels. Task 1. Create pcb for the required sensor and firmware 2. Create a Proof of Concept (ie physical object) 3. Create a simple app (ie Android/iPhone) to receive and display/export data
Category: Electrical       
Skills: Electrical Engineering, Electronics       

c****ons
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| c****ons
|    Australia
Fixed Price: Not Sure   |  Posted: Jun 21, 2015  |  Closed  |   9 Proposals
Hi We require a Chinese base sourcing agent for communications with suppliers and dealing via Alibaba, etc. All aspects of sourcing required to be managed and oversee. Full team in place to work with.
Category: Other - Engineering &...       
Skills: Manufacturing Design, Electronics       

G****ert
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| G****ert
|    Ireland
Hourly Rate: Not Sure   |  Duration: 3-4 weeks  |  Posted: Jun 21, 2015  |  Ends: 73d, 22h  |   15 Proposals
We seek to develop a solar powered greenhouse automation system for small holder farmers in Kenya. The system should have 3 wireless sensors that measure temperature, humidity and soil moisture. These sensors also have small solar panels with an inbuilt battery to power it during the night. The approximate range of the sensors should be 300feet. The sensors are then connected to the main gateway which is programmed to receive impulses and convert them to messages to be sent to the farmer via SMS on their mobile phone using a GSM module. This enables remote monitoring of the greenhouse from wherever a farmer is just by simply texting the system. The system also using the soil moisture sensor should be able to automatically regulate the water channeled through the driplines by opening and closing the solenoid valve which should be solar powered too. This will ensure accurate and more efficient use of water channeled through the driplines. The farmer should also be able to self irrigate t...
Category: Product Design       

t****ich
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| t****ich
|    Kenya
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