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Hourly Rate: Not Sure   |  Duration: 3-4 weeks  |  Posted: Mar 05, 2015  |  Ends: 13d, 20h  |   11 Proposals
We have a requirement for research on a wireless data acquisition system. R&D will be required for the circuit board that power to the transducers, collects the data and transmits them via bluetooth. The project has the following hardware and software requirements: 1) Miniature circuit board design, ideal size 20mm x 40 mm 2) Board needs to provide constant current power to two sensors 3) Microcontroller needs to read the sensor's output over a fixed time period 4) Microcontroller needs to transmit the data set via Bluetooth to an iPad 5) PIC microcontroller family 6) MicroSD card for backup storage of datasets and/or micro-controller program 7) Firmware written in modular format 8) Always-ON concept with power-save mode 9) Data-sampling rate > 6,000 samples/sec for < 1/2 sec 10) 16bit or 24bit A/D converter 11) Low power consumption due to battery powered. 12) Possible PCB build optional Clear, concise and full documentation (notes, design decisions, tests, etc.) to be ...
Category: Electrical       

m****t07
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| m****t07
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Mar 05, 2015  |  Ends: 13d, 3h  |   6 Proposals
Looking for experienced IOT programmer in Energy Conservation and Home Automation space. Following skills are required Platforms - Raspberry Pi, Intel Galileo, Arduino Protocols - Bluetooth, Zigbee, WiFi Experience in embedded programming / micro-controllers is desirable.
Category: Mobile Applications       

T****eet
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| T****eet
|    India
Fixed Price: Not Sure   |  Posted: Mar 02, 2015  |  Ends: 10d, 18h  |   14 Proposals
Hello, My name is Robert, I am looking for individuals or companies to help design a custom highly affordable pid temperature controller that i can take the design to a supplier to manufacture for me. We are creating our own brand essential oil vaporizer but do not like the current chinese pid controller boxes on the market our goal is to have a custom one created so we can have our chinese factories manufacture. I am ignorant to this type of product but see all kinds of items on the market like Arduino or raspberry pi and i am very interested how cheap we can make this yet have the high quality parts and programming, We need this part to help build our own enail   [obscured]  /?gws_rd=ssl#q=enail Basically all this does is fit around the diameter of a circular titanium petri dish and heat it to a stabilized desirable temperature. (sort of like a retro fitted soldering station with a lcd screen to show temperature setting and actual temperature. With the finished product hoo...
Category: Electrical       
Preferred Location: North America, Eastern Europe, Eastern Asia

T****ng1
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| T****ng1
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: Feb 22, 2015  |  Closed  |   23 Proposals
UPDATED INFORMATION as of 2/22 7:30pm CST From bidders I want to clarify two details: 1. The current source code is ANSI C source that currently runs on embedded micro controller systems. This code will run on Windows. I believe it supports 32 or 64-bit environments but will check on that. 2. We are not very well versed in Windows or DLLs. We are embedded micro controller programmers. We do not know how the DLL should function. The first step in the project is to do an analysis of the software and design how a Windows programmer would want to access the functionality provided by our software through the DLL. We want the successful bidder to lead us through this design. There is a design phase for this effort. 3. I am not interested in speed of delivery. I want someone that can show me they have the skills to complete this project successfully. --------------------------------------------------------------------------------------------------------------------------- Overview We have...
Category: Software Application       
Skills: C, .NET Framework, Java, C#, Microsoft Visual C++       

j****ldi
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| j****ldi
|    United States
Fixed Price: $150 - $250   |  Posted: Feb 16, 2015  |  Closed  |   5 Proposals
I want to a SMD based PCB design with integration for GSM + GPS module. As we know GSM/GPS module's will be change time by time so I need adapter wise PCB design which means: main PCB will be any suitable micro controller but cheap as my product will be plan for sell able in Pakistan, and would have DB9 interfacing with various inputs and output pins for example pin for ignition and one for panic button etc. other PCB which contain GSM/GPS module with micro-SIM card holder with SD card module for GPS data preservation purpose. I've attached my old tracking device PCB which based on 89c51/52 but It does not have the MX232 installed I want it now for reviewing to attached with PC as well to program directly through pc using ISP.
Category: Other IT & Programming       

a****zvi
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| a****zvi
|    Pakistan
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Feb 11, 2015  |  Closed  |   11 Proposals
We need someone to work with us on a small work regarding the TWR-MCF52259 board. Someone who can deliver fast.
Category: Electrical       

s****kss
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| s****kss
|    India
Fixed Price: Less than $500   |  Posted: Feb 11, 2015  |  Closed  |   6 Proposals
I'm a hobbyist and maker looking for assistance with the development of an El Wire driver / inverter. My intention is to hand build a small number of these El Wire drivers, as needed, to use in my El Wire projects. The cheap commercially available El Wire drivers that use transformers are unacceptable due to noise and limited output. I have a fair amount of experience with micro controllers and very simple circuits but the design of an SMPS to drive El Wire is beyond my expertise. Using a Linear Technology reference design, along with the guidance of a few experienced forum users, I have developed an LT Spice model / schematic that I would like reviewed, validated and adjusted to meet my project requirements. Upon successful validation of the design I would like an Eagle PCB layout created with all the necessary files to have a PCBs produced by OSHPark. For this project I will provide - LT Spice circuit model / schematic including proposed components - Data sheets for all proposed c...
Category: Electrical       
Preferred Location: North America, Western Europe

s****212
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| s****212
|    United States
Fixed Price: Not Sure   |  Posted: Feb 05, 2015  |  Closed  |   5 Proposals
Hi i am looking for someone who can design and made fully functional prototype of similar controller like you can see in the video. In the video controller can control 3 axis but i am looking for 4 axis controller via 2 joysticks. Controller can be base on Arduino, Raspberry Pi or on any other micro controller base board or you can build your own. Must have: Software 1. Timelapse menu 2. Video menu ( i already have controller for 2 axis with very good video and timelapse software. My system is running on Arduino. Most of the function i like and would like to have on the new system will be specified later) Hardware: 1. Fully populated PCB board or boards 2. All cable connection with motors and with the batteries must have secure connectors so the cables can't get loose. 3. 2x joysticks 4. Large LCD screen ( not sure if touch screen yet) 5. Wifi connection with all 4 axis 6. Wire connection with all 4 axis 7. 5V and up maybe 24V ? 8. If not touch screen is selected some kind o...
Category: Electrical       

e****365
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| e****365
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Feb 02, 2015  |  Closed  |   17 Proposals
PCB prototype has a three button layout that needs to be rotated 180. Custom battery contact needs to be added to the design. The job requires both micro controller and power supply design experience. This 33W board has a buck-boost switcher power supply design.
Category: Electrical       
Preferred Location: North America

V****aap
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| V****aap
|    United States
Fixed Price: Not Sure   |  Posted: Feb 02, 2015  |  Closed  |   10 Proposals
Prototype design engineering work required for a micro controller board Design refinement, part sourcing, creation of BOM, technical design documents and test plan. Recommendation for and support during short order assembly. Independent test of finished prototype.
Category: Electrical       
Skills: Electronics, Electronic Design, PCB Design       

r****eek
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| r****eek
|    Ireland
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jan 29, 2015  |  Closed  |   10 Proposals
The purpose for this PCB : will be to take in very small currents (small Mili Amps) to higher amounts of current around 1.2 or 2 Volts and store any energy it gets to be delivered to a lithium Ion Battery which will discharge current through USB connection. This is like a "power bank idea". The current is a random energy source so it is coming from a energy component which is not a direct current like an outlet but instead it is like a piezoelectric generator. What we are looking for in the PCB: 1. Surface Soldered Design 2. Creativity in selecting the right combination of Micro Controllers and Amplifiers 3. Keep at least 90% of the efficiency 4. Best made in Eagle. 5. Grounds in the design The board should also include LED indicator light to show when battery has been charged completely Also it should hold a USB (Female).
Category: Electrical       

R****Win
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| R****Win
|    United States
Fixed Price: Less than $500   |  Posted: Jan 27, 2015  |  Closed  |   5 Proposals
What you have to know before sending the request : 1) You have built and designed PCB boards before 2) You have worked with BLE 4th generation, OLEDs and Micro Controllers 3) You have to be able to do Application ( IOS or Android ) medium level 4) You must know some manufactures near you to build your final PCBs If you easily can do all those factors, welcome to read the rest :) what I have done yet ? 1) schematic .PNG file 2) ATMEGA328P programing ( 100% ) 3) OLED programing ( 90% ) 4) Auto cad design file which shows the sizes 5) Application flowchart and formulas needed what I need you to do ? 1) Buy all components, finish BLE, OLED and Micro programing and connection on board 2) build our PCBs according to the sizes that I need 3) Build the Application ( iOS or android ) and test it with the board 4) mail the final board to the U.S Notes: 1. Please contact me If you really did those jobs successfully before 2. The project is not difficult at all and I did almost...
Category: Electrical       

s****net
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| s****net
|    United States
Fixed Price: Not Sure   |  Posted: Jan 25, 2015  |  Closed  |   11 Proposals
Revision 3.1 / January 22, 2015 We are seeking sources to design and/or to produce a custom micro-controller (MC) based Printed Circuit Board (PCB) with very low profile and ultra low power consumption that will be embedded into a series of custom medical products. Various products will have different functions and features; however, a single multi-function PCB will be used for the entire product family. The PCB must excite and condition signals from (4) precision load cells and then convert this data into computed metrics and stream the results to a host computer over USB and optional Bluetooth. The PCB must also drive an optional auxiliary user interface consisting of a custom membrane switch with LED indicators and LCD display for certain stand-alone product functions. 24-bit ADC with simultaneous sample and hold of 4 single ended channels at 100 Hz minimum sampling frequency is required. The MC must be capable of streaming the computed values continuously in near real time...
Category: Electrical       
Skills: Microcontroller Design       

G****BNC
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| G****BNC
|    United States
Fixed Price: Less than $500   |  Posted: Jan 23, 2015  |  Closed  |   28 Proposals
I am looking to have designed a small electronics system. The system will consist of a simple timer with user interface, a micro-controller, a light sensor, and a small speaker and LED light to serve as an alarm. The electronics will be implemented into a small plastic and/or glass product. This product is to be used in the following manner: -The user will enter a time (possibly hours and/or days), this timer will then count down. After the timer reaches 0, the speaker will sound a "beep" and a light will flash only after the light sensor detects a significant amount of light. The product will be kept in a dark place 99% of the time and will be in light after the user physically turns a light on. The idea is for the product to sound an alarm after the set time AND after the light sensor detects a significant amount of light. At this stage, I am looking for this small electronics circuit to be designed for a prototype plastic/glass product. I am also looking for advic...
Category: Electrical       

C****p33
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| C****p33
|    United States
Fixed Price: Less than $500   |  Posted: Jan 21, 2015  |  Closed  |   35 Proposals
Good day, I want to set up a small scale shopping site in nigeria that will be selling micro controller ,Integrated circuit ,Arduino,Robotics Hardwares and Gps and GSM and all kinds of controller generally I will be sending the picture and the price as soon the work plan is accepted Because I found out that online microcontroller stores are not in nigeria and this will provide a lot of positive power in helping those who have interest in this electronics and electrical project.And i would like to create an online tutorial platform for students too and this website should accept verified online payment for does hobbist, engineer and reseacher that could not come to my store directly to buy online ....So anyone that can do this job effectively should please contact me asap ..Thanks
Category: Web Programming       
Skills: MySQL Administration, HTML, PHP       

b****ino
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| b****ino
|    United States
Fixed Price: Less than $500   |  Posted: Jan 14, 2015  |  Closed  |   1 Proposal
Need a ac to ac high efficiency converter from 230 volts ac to 230 volts ac but using some good techniques efficiency of this power management needs to be increased using micro-controller as such I need a prototype which input 230 volts with 1 amp should give us 1.2 amps with 230 volts Components needs to be used in the design 1 . Mosfets or IGBT or Thyristor etc 2. Resistors 3 Diode 4 micro controller 5 others u can suggest as per design I need this project professional who got good experience in such designs please bid this project with including techniques you will be using to achieve the output
Category: Electrical       
Skills: Electrical Engineering, Embedded System       

****
 [?]
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| Client
|    Oman
Fixed Price: Less than $500   |  Posted: Jan 11, 2015  |  Closed  |   1 Proposal
Need a ac to ac high efficiency converter from 230 volts ac to 230 volts ac but using some good techniques efficiency of this power management needs to be increased using micro-controller as such I need a prototype which input 230 volts with 1 amp should give us 1.2 amps with 230 volts Components needs to be used in the design 1 . Mosfets or IGBT or Thyristor etc 2. Resistors 3 Diode 4 micro controller 5 others u can suggest as per design I need this project professional who got good experience in such designs please bid this project with including techniques you will be using to achieve the output
Category: Electrical       
Skills: Electrical Engineering, Embedded System       

****
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| Client
|    Oman
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jan 06, 2015  |  Closed  |   12 Proposals
I have a project in which i would like to use a microcontroller to interface with an SD slot in order to use the data in real time. I will assemble the electronics on a breadboard for testing but would require a diagram, component list and required code.
Category: Electrical       

h****ric
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| h****ric
|    United States
Fixed Price: Less than $500   |  Posted: Jan 05, 2015  |  Closed  |   5 Proposals
Need a ac to ac high efficiency converter from 230 volts ac to 230 volts ac but using some good techniques efficiency of this power management needs to be increased using micro-controller as such I need a prototype which input 230 volts with 1 amp should give us 1.2 amps with 230 volts Components needs to be used in the design 1 . Mosfets or IGBT or Thyristor etc 2. Resistors 3 Diode 4 micro controller 5 others u can suggest as per design I need this project professional who got good experience in such designs please bid this project with including techniques you will be using to achieve the output
Category: Electrical       
Skills: Electrical Engineering, Embedded System       

****
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| Client
|    Oman
Fixed Price: Less than $500   |  Posted: Dec 19, 2014  |  Closed  |   12 Proposals
We current have a working prototype for a flexible, resistive pressure sensor and are now looking to have a manufactured prototype produced. To do so we need a the pressure threshold corrected, aid in chip selection, and a circuit diagram (in eagle or comparable). We are experiencing a pressure threshold problem - our maximum capacity is less than 5lbs /cm2 and we need it to be 300-400 lbs/cm2. We believe that either an op amp or some sort of voltage correction can solve our issue. We need your help to both diagnose and solve. As for the chips, our circuit contains a micro controller, an accelerometer and gyro, wireless communication (BLE), rechargeable power source, data storage. We need advice on selecting chips balancing cost (less than when in bulk), power and performance. And finally, we need a comprehensive board schematic. With this information, a manufacturer should have everything they need to produce our board.
Category: Electrical       
Preferred Location: North America

r****vac
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| r****vac
|    United States
Fixed Price: $500 - $1,000   |  Posted: Dec 10, 2014  |  Closed  |   11 Proposals
The overall goal is to create a custom HID i.e. keyboard and single incrimental rotary encoder, when a key is pressed or the encoder moved an OSC (Open Sound Control) command will be output via an RJ45 socket to the network. The project may include: 1)A custom keyboard layout incorporating Cherry MX keys with built in diodes(4 keys to light up using built in LEDs), 84 keys in total 2)An input for an incremental rotary encoder. 3)Micro controller to convert input into Ethernet output or alternative suggested by freelancer (I am open to your ideas). 4) The Device should be able to cope with both DCHP assigned IP addresses and static. 5) it should be possible to alter the devices static ip address or OSC target . 6) Ideally but not essentially firmware upgrades should be possible. 7) Another desirable but not essential feature would be the ability to plug the device into a computer via USB and for it to appear as a keyboard outputting letters and key combinations based on which ...
Category: Electrical       

g****efw
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| g****efw
|    United Kingdom
Fixed Price: Less than $500   |  Posted: Dec 07, 2014  |  Closed  |   9 Proposals
Hello, I need consulting for an automation, remote monitoring and remote control application for a food growing project. Knowledge of arduino, micro controllers, machine communication platforms, and wireless is required. operator software interface will be an expect of the project. You may have to do study/research/ and provide best recommendations and possibly list of parts,schematics. Budjet is aournd $200- $b250 for this early stage.
Category: Product Design       

r****000
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| r****000
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Dec 04, 2014  |  Closed  |   20 Proposals
Microcontroller to time delay the starting and stopping of a generator and will also control a power board - time delay turning the power board control relay on , 2 minutes after the generator has started and turning the powerboard off 2 minutes prior to the generator being turned off. The microcontroller is receiving a signal from a 24 hr , 7 day programmable timer
Category: Electrical       

s****nds
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| s****nds
|    Australia
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