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Fixed Price: Not Sure   |  Posted: Jul 24, 2015  |  Ends: 9d, 16h  |   20 Proposals
I would like to create a circuit that controls 2 muscle stimulating electrode pairs with an arduino UNO micro-controller. Attached is the current circuit which works well for the stimulating electrodes, however there are a few changes I would like to implement to this configuration: - I would like to be able to adapt this circuit so I can control their on/off state using the arduino. This includes precise timing of when the electrode's become active and the duration for which they remain in the 'on' state. - I would like to be able to keep the integrated intensity control If this is a job you would like to take on, please do not hesitate to contact me and I will be happy to discuss details, any queries you may have and provide a full request for quotation. Kind regards, William Markiewicz
Category: Electrical       

W****mkz
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| W****mkz
|    United Kingdom
Fixed Price: $1,000 - $5,000   |  Posted: Jul 22, 2015  |  Ends: 8d, 3h  |   12 Proposals
Need to develop a GPS tracker, Engine Shut Off, and Passenger Weight Checking device for CNG cars. This device will be outfitted onto CNG cars and will transmit the data through GPRS GSM sim to a central server. The central server can send out requests to shut off the engine. If weight checker is not possible, we need a switch for the driver to indicate his ability. Switch up for available, switch down for not available. Each device should cost under $40 USD to produce. The device can be built with micro controller parts found around electronics stores. The server side aspect can be done by us but if you have experience developing software as well, that is a plus. The software for the micro controller will have to be developed by you. Please provide past work examples, your experience, and how you intend to build such a device. Include the code "343" in your response so I know you read the description. Very important that all these parts can be sourced in Bangladesh or...
Category: Electrical       
Preferred Location: Bangladesh

f****h50
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| f****h50
|    United States
Fixed Price: Not Sure   |  Posted: Jul 19, 2015  |  Ends: 4d, 17h  |   16 Proposals
I have a programmable infrared TV remote control that that I need to clone the PCB. I'm needing the full schematic, Gerber files and other necessary files to recreate this board. This remote control uses a removable but programmable micro-controller. It's a PIC16F648A that sits inside of a socket (16F648). It contains two Infrared LEDs, a 9A104G resistor, a 10v capacitor, 4.000MHz Crystal and several very tiny resistors on the other side. This remote is powered by 4 AAA batteries. This PCB board is about 2" wide and about 8" long. Also a primer on the circuit and how it works would be great! Also, I have pictures of the PCB that I can provide.
Category: CAD       
Skills: 3D Modeling, AutoCAD, OrCAD       

b****lee
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| b****lee
|    United States
Fixed Price: Not Sure   |  Posted: Jun 25, 2015  |  Closed  |   8 Proposals
This is phase 1 of the project. Writing VHDL code to convert 12 K hz to 40 K hz HS video signals to standard VGA video signals using a FPGA and external RAM for screen display. Input signals will be digitized for the FPGA from a Analog AD9880-KSTZ-150, On screen display ( OSD)and input processed by a STC12LE5624AD micro controller. Input signals to be converted are STYLE (RGB(A), RGB(D), SOG, YUV, RGBS, RGBHV and YPbPr). OSD control will have Horz. position, width, Vert. position, height, phase, sync ( separate HV, composite HV, SOG and YUV. Resistance setting (75 ohm, 750 ohm) Scanning (progressive, interlaced).Screen resolution ( 640 X 480 and 800X600). Also in the OSD window it will show in real time the VS and HS input frequency. THE OSD function will display on default when no signal is present and have a time out to close when not being used. We will supply a prototype board for testing the VHDL code via a JTAG interface. And will provide a schematic of the prototype.(ID: 74...
Category: Other - Engineering &...       
Skills: Verilog / VHDL       

r****103
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| r****103
|    United States
Fixed Price: $80 - $99   |  Posted: Jun 20, 2015  |  Closed  |   10 Proposals
We are looking for an engineer that is good in the area of designing, creating assembling drawing of CNC machine using Autocad and Inventor simulation likewise manufacturing cheap and reliable CNC machine of various size secondly we want a good engineer good in the world of automation using micro controller and stepper motor .
Category: Product Design       

t****007
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| t****007
|    United States
Fixed Price: Not Sure   |  Posted: Jun 18, 2015  |  Closed  |   7 Proposals
Hello ? We have a two phase project that requires an expert with a M2M device control over satellite experience/ background to design a detailed schematic to turn on/off existing simple piece of hardware (self-powered) as needed over a satellite constellation from a work station computer. This detailed schematic will need to show the end-to-end M2M solution and detailed diagrams of all components and their interaction. We will provide the simple schematic of the device that needs to be controlled/"power on/off" through an accessible wiring harness and/or inline power switch or micro-controller over and existing satellite constellation (Iridium/Inmarsat). The device is self-powered and has an existing tri-band antenna. (Avionics/Aerospace engineering background helpful but not necessary) Phase two is to build the prototype(s) and merge with said devices which can be used to demo to Avionics/Aerospace team on a desktop version or over Iridium SDK . We are receptive to h...
Category: Other - Engineering &...       
Preferred Location: North America, Western Europe, Eastern Europe, India/Southern Asia

T****oup
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| T****oup
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: Jun 15, 2015  |  Closed  |   18 Proposals
GPS wearable device using PIC micro controller that tracks user position and sends data via API commands. Deliverables include a prototype, hardware layout in Eagle CAD and firmware in C. - Tracks user position and reports back to database in specified API command structure. - Uses Multiple Digimesh modules to increase position accuracy (XBEE XBP09-DP) - Onboard Gyro to increase accuracy and improve efficiency - Has onboard MRF49XA to accept inputs from existing external devices
Category: Electrical       
Skills: GPS Development       

****
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| Client
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 10, 2015  |  Closed  |   7 Proposals
I need a resource that has experience with ESP-12 (8266). I want you to get this device to interact with a color touch screen without utilizing an additional micro controller. I would like the touch screen to be 4" to 5" in size. You can use SPI, I2C or what ever GPIO pins you need that are available on the ESP8266.
Category: Electrical       

****
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| Client
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Jun 05, 2015  |  Closed  |   26 Proposals
Design hardware, Schematic Capture, and PCB Layout. We're developing a low power Micro-controller solution that can fine control small DC or Stepper motors using potentiometer as feedback. The motors are confined to a 270 degree rotation limit. A shiftless potentiometer is integrated with the motor to return position-feedback. The device has a 9v input. The primary areas of development are, power hardware/management, motor control/driver. Consideration for noise, power are primary concerns. If you are able to do the software as well, that's a huge plus. But the primary scope of this project is the hardware design and development.
Category: Electrical       

p****332
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| p****332 *
|    United States
Fixed Price: $50 - $100   |  Posted: Jun 03, 2015  |  Closed  |   1 Proposal
I need a small firmware for that accesses the omnivision ov7670 camera image/video data on a micro controller (attiny or STM32 or even arduino would be ok). The exact device I have is:   [obscured]  /item/640x480-Pixel-lens-OV7670-CMOS-Camera-Module-24p-Socket-2-5V-3-0V-Hot-Sale/32268661124.html
Category: Other - Engineering &...       

u****mir
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| u****mir
|    United States
Fixed Price: $500 - $1,000   |  Posted: May 25, 2015  |  Closed  |   18 Proposals
Looking for someone to work on a micro-controller based control system for weight sensors, LCD and soft switch based input systems, and electrically controlled valve systems. Will provide more and accurate details after NDA is signed.
Category: Electrical       
Skills: Electronics       

R****nda
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| R****nda
Fixed Price: Less than $500   |  Posted: May 23, 2015  |  Closed  |   31 Proposals
I am looking for instructions on designing a LED wired circuit. I currently have most of the parts and need instructions on how to connect them and make them work. I want to connect some RGB LED to the micro controller to be able to control the color. I am not sure what order or what resistors to use and where.
Category: Electrical       

p****dig
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| p****dig
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: May 18, 2015  |  Closed  |   27 Proposals
In order to validate the functionality of all components of my circuit, I am looking for a circuit and PCB designer which can do the circuit refine, design and prepare the PCB boards. To give you a general overview of the circuit: it is basically the whole supply of the circuit which consist of a solar-cell charger and a 9V battery which must provide us a 3.3V output for the micro-controller, a 5 V and 100mA to drive a solenoid and a 5V and 500 mA for a USB charger. I have used 3 ICs made by Linear Technology, which I can provide you with all their datasheets and information if it is needed. Regards, Sanaz Haddadian
Category: Electrical       

S****adn
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| S****adn
|    Germany
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: May 12, 2015  |  Closed  |   25 Proposals
I'm looking for an outstanding professional that has experience integrating Sensors, Arduino/Raspberry kits (micro-controller unit), various communication protocols such as Wi-Fi, Bluetooth, Zigbee, GSM/LTE and cloud storage. In short, the person should have excellent hardware design and software programming capabilities. The job requires the following: 1: Creation of a prototype that can acquire different data sets through special sensors and utilize MCUs that transfer data-set to the cloud using an appropriate communication method 2: Build software ports so anyone with proper credentials can access the data-set using API programming 3: Apps to be created for iOS/Android 4: Two-three page write-up/documentation of the completed work 5: The circuitry in the prototype should be robustly designed to absolutely minimize defects & 6: Finally, the design should be conducive for mass-manufacturing. This project is one of a kind and I'm looking for people that are highly imagin...
Category: Electrical       
Skills: Electrical Engineering, Electronics       

B****V30
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| B****V30
|    United States
Hourly Rate: $40 - $50 / hr   |  Duration: 7-9 months  |  Posted: Apr 27, 2015  |  Closed  |   41 Proposals
Looking for someone to help me design and prototype over 20 different micro-controller boards and modules. Details will be disclosed to winning bid.
Category: CAD       
Skills: 3D Modeling, AutoCAD, Manufacturing Design       

c****ync
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| c****ync
|    Canada
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Apr 16, 2015  |  Closed  |   11 Proposals
Update: After a long discussion with my insurance agent, I've removed the design insurance requirement. I am looking for a electronics design partner to create two printed circuit boards for a robotic lawnmower. I am price conscious and interested to learn about any price trade-offs that are available. I believe I want two boards as follows: The base station should contain a PCB that is AC powered using an external transformer. It should have basic location capabilities, an RF transmitter, a modulated infrared light, and provide power to charge the robot unit. The robot should contain a PCB that is battery powered. It should contain a micro-controller, multiple motor drivers, battery management, GPS capabilities, an RF transceiver, and infrared sensors, a small LCD touch screen, sound generation, and several sensors including one or more cameras. These boards should be in compliance with relevant US and EU regulations and standards. You should produce basic software for the sy...
Category: Electrical       

p****cts
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| p****cts
|    United States
Fixed Price: Not Sure   |  Posted: Apr 04, 2015  |  Closed  |   9 Proposals
Need someone who can who knows verilog / vhdl programming , micro-controller architecture, Digital design etc. I am looking someone who can design a micro-controller using HDL, details will be given later. please relevant experience while applying.
Category: Electrical       
Skills: Electronics, Verilog / VHDL       

s****ath
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| s****ath
|    India
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Apr 02, 2015  |  Closed  |   16 Proposals
Develop a small (less than 30mmx30mmx10mm) RF transmitter with low power consumption, coin battery powered, that transmits it's own ID number (24 bit) each X (Programmable) seconds. With integrated PCB Antenna. With option for temperature sensor and accelerometer) Also the receiver radio with ethernet, serial and wigand output. Radio should be capable of read at least 50 transmitters working all together. Desired range 50 m Battery should last 3 years. Desired IC for transmitter is PIC12F529T39A Deliverables: Diagram, PCB file in orcad or other, Gerber files, component list, manufacuting instructions, micro controller program preferible in CCS or C. Please submit estimated time with your proposal.
Category: Product Design       

s****a99
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| s****a99
|    Mexico
Fixed Price: Less than $500   |  Posted: Mar 31, 2015  |  Closed  |   11 Proposals
a complete project full documentation to the simplest details.all must be in english. project : automated greenhouse system that monitors and controls all the operational conditions of the greenhouse , temperature, humidity, irrigation , security , fertilization possibly more. job must be done with an arduino micro-controller and must communicate with operator and be monitored and controlled remotely...
Category: Product Design       
Skills: Research, Electronics, Microcontroller       

m****ode
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| m****ode
|    United States
Fixed Price: Not Sure   |  Posted: Mar 28, 2015  |  Closed  |   9 Proposals
Embedded Systems Engineer needed to develop a Wearable GPS Navigation device for Startup. The device should include micro controller, GPS receiver, accelerometer, and flexible display. Should be capable of storing approx 100MB in map data.
Category: Contract Manufacturing       
Skills: Embedded Systems       

s****795
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| s****795
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Mar 27, 2015  |  Closed  |   5 Proposals
Embedded Systems Engineer needed to develop a Wearable GPS Navigation device for Startup. The device should include micro controller, GPS receiver, accelerometer, and flexible display. Should be capable of storing approx 100MB in map data.
Category: Contract Manufacturing       
Skills: Embedded Systems       

s****795
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| s****795
|    United States
Fixed Price: Less than $500   |  Posted: Mar 24, 2015  |  Closed  |   4 Proposals
it is a brushless hobby motor designed for airplanes but has ALOT of torque and can handle unto 70A at my 25V nominal system. It is a 14 pole outrunner motor. We use 120 degree hall sensors to monitor position, rpm, I have just focused on current control and limits for acceleration. I use a PIC32MX250 micro controller Expert should apply which quick turn around. ready to hire now
Category: Electrical       
Skills: Electrical Engineering, Electronics       

E****ido
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| E****ido *
|    Pakistan
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Mar 24, 2015  |  Closed  |   9 Proposals
Hi, I need a circuit board designed and code written for a device that will transmit a weight over GSM to remote servers. The signal coming in will be that of a load cell. I would like the inputs from the load cells to be intrinsically isolated if possible as well. Once the signal is received by the Micro controller, it needs to be sent by GSM. That signal will be sent to a remote server and a web application will use the data to provide customer specific information. The unit will be able to take from 1-10 inputs from the load cells for now, depending on the application. Some Digital outputs from the controller will also be transmitted for alarms. The unit will need to be battery powered, with battery level indication also transmitted. I was thinking that readings from the load cell could be stored up and every couple of minutes sent to server to save on battery life. The project is in South Africa. So, I will need controller, modem etc. to be freely available here. I would prefer...
Category: Electrical       

k****ter
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| k****ter
|    South Africa
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Mar 24, 2015  |  Closed  |   12 Proposals
We need someone to work with us on a small work regarding a specific micro controller board. Someone who can deliver fast. Freescale.
Category: Electrical       

****
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| Client
|    India
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