Freelance Jobs

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Microcontroller jobs

Need A Long Range Tx And Rx Designed And Proto

Aug 29

Requires Electronics, Engineering, Microcontroller knowledge.

Looking for an engineer to design and build a proto of a long range Transmitter and receiver.

Range: ~800 meters- Must be designed so that I do not need a FCC license…

Transmitter–
size: flexible on size ( no larger than 8"x4"x6, but size is fliexibel)
Power source- needs to be able to plug into home 110V AC
Function-
—–Transmitter will detect a switch being open or closed (on or off) via a push button switch type device.
—–Once the state of the switch is detected it will transmit the status to a receiver
—– When the transmitter senses the "switch" status change thats when it will transmit the status

Receiver–
Size : must be small- ~ 4"x2"x1"
Power source– needs to function off of Battery or 12V DC or both.
Run time off battery needs to be at least 1 month-
function-
—— Rx will get a signal from Tx to show status of open or closed switch ( on or off)
—— When Rx get a open signal (on) from Tx it will power up a Green LED
—— When Rx gets a Closed signal (off) from Tx it will power up Red LED
—— Once LED will stay on for 45-60seconds
—— When user wants to know the last known state of the LED they can push a button that will power up the LED RED or GREEN depending on the last state the LED was in.
—— LED will be a dual or tri color LED— one LED for all uses— This LED does not have to be mount on board- It can be a remote lead— about 5
—— Button (switch for user to press to find out last state of LED) will also be remote mounted and does not need to be on the PCB.

i will need 8 prototypes made

Any further questions. Please email or message me.

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TLRemote2010

Aug 27

Requires Electronics, Microcontroller knowledge.

I need a person that can take my idea from a hand drawn representation to a working model. I have an idea for a new remote control, but I need to put together a engineering drawing so that I may get a working prototype produced.

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LED Matrix

Aug 25

Requires CAD/CAM, Electronics, Engineering, Microcontroller knowledge.

I need someone to do a pcb layout of a LED matrix display 16 x 16 the leds are 10mm and the have to be 10mm appart from eachother, it will be driven by four 74hc595 SMD 2 ULN2803 and controlled via SPI with an Arduino microcontroller if you have any question or suggestions please let me know , or if you want to use another microcontroller is ok too please dont bid if you cant start right away, thank you.

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S7-300 Video Tutorial Fundamentals To Expert

Aug 24

Requires Electronics, Engineering, Microcontroller knowledge.

I am looking for a PLC programmer that knows well Siemens S7-300 controller. If you are using in every day work / or as a teacher PLCs this is a project for you.

This project is to create a training video tutorial explaining first steps in understanding PLC programming.
The overall goal is to introduce all theory in practical examples.

Video length: expected around 4 hours
English must be fluent (other languages will be considered)
Needed software for recording will be provided.

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TDM8 Audiostream To TCP/IP

Aug 24

Requires Electronics, Microcontroller knowledge.

Need to interface 2 boards with Analog-Devices ADAU1401A and establishing a point to point connection via a TCP/IP connection.

The project should:
- Provide source code in C with all necessary files to successful implement in the MCU
- Schematic diagram
- Use a MCU with a TCP/IP Stack to send or recive a TDM8 serial stream of 8 Channel of audio 96k 24bits from the ADAU1401A.
- The MCU should have connection to a LCD Display and push-buttons to navigate in menus for configuration purposes of the TCP/IP Network connection and to basic configurations of ADAU1401A (like volume up and down per Channel).
- Synchronized send -> receive of the channels ( channel 1 send should be channel 1 receive), provide low latency
- MCU could be Microchip PIC32

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LiFePO4 BMS

Aug 22

Requires Microcontroller knowledge.

The goal of this project is to monitor, display info, and protect large LiFePO4 battery packs using Linears LTC6802IG-2 chip. A total of two (2) PCBs will have to be made. A host PCB which will contain an attiny2313 and a radio transmitter, and a client pcb which will contain the LTC6802IG-2. This way multiple client PCBs can be connected to monitor and protect battery packs with large cell counts. The radio transmitter will interface with the EZ430-CHRONOS-433 watch from TI. The watch will display information sent by the LTC6802.

LTC6802IG-2 <–> ATTiny2313 <–> Cronos 433

Extra details:
You are in charge of making and delivering a tested and working prototype. When complete I would like to have the finished prototype, parts list (from major North American distributers (Mouser, Farnell, Digi-Key) , gerber files, and the source code. Please include the costs of materials, fabrication and shipping in your bid. Happy bidding.

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Electronics Project Report

Aug 22

Requires Copywriting, Electronics, Microcontroller, Technical Writing knowledge.

Hi
I need a technical report for an electronics related project. The report should be a length of around 6000 to 8000 words.
Report should have excellent research oriented and should evident supportive diagrams and research.

I need only the soft copy of the technical report. Something like a thesis for the degree award.

Any questions please do not hesitate to contact me through mail.

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GPRS WATER METER

Aug 22

Requires Electronics, Microcontroller, Wireless knowledge.

DEVELOP GPRS DEVICE THAT CAN COUNT NUMBER OF INCOMMING PULSES FROM A REED SWITCH (MAX 100 PULSES PER SEC).
SEND FOLLOWING DATA EVERY HOUR.

WWW.ABC.COM/TEST.ASPX?C=<PULSECOUNT_32BIT>,<GPRS IMEI NO>, <DATETIME>,<BATTERY LEVEL>

BATTERY POWERED,
MICRO SLEEP MOST OF THE TIME, WAKE ON INCOMMING PULSE, INCREMENT COUNTER THEN GO TO SLEEP.
REAL TIME CLOCK MUST WAKE UP MICRO EVERY OUR TO TRANSMIT THE ABOVE HTTP GET QUERYSTRING.
PLEASE ALSO INTEGRATE RS232 TO PROGRAM DEVICE LATER, MUST BE ABLE TO CONFIGURE HTTP ADDRESS USING RS232, EG SEND: URL = WWW.ABC.COM/TEST.ASPX, MICRO WILL RESPOND "ok"

PLEASE USE SIM COM MODULE + EAGLE FOR PCB IS PREFERRED.
PLEASE USE PIC MICRO, DEVELOP SOFTWARE FOR MPLAB IDE.

YOU DESIGN THE SCHEMATIC/BOARDLAYOUT, CHOOSE MATERIALS TO KEEP MANUF COSTS TO MIN.
WE WILL BUILD THE PCB,
YOU DEVELOP FIRMARE WE TEST WITH BUILT PCB

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Keypad Keylogger

Aug 20

Requires Electronics, Microcontroller knowledge.

This project is very simple and straight forward. I would like to have a custom made numerical keypad key logger that will log incoming data from a 7-pin data ribbon sensor sililar to the one shown in pictures. Data should be saved in internal memory with a time stamp. It should not interfere with ongoing system processes, should save and time-stamp when bottom-right &quot;OK&quot; button is pressed, and should be powered by a 3.6v lithium-ion battery (which will be continuously charged by the system. The unit should also have USB connectivity.

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GPRS Pulse Counter – Simple Project

Aug 19

Requires Electronics, Microcontroller, Wireless knowledge.

Need PCB designed + firmware to implement basic GPRs logger:
We will build PCB ourselfs locally.
Battery powered. micro must be asleep most of the time, GPRs module must be powered off to conserve battery life.
on rising edge of pulse the micro must wake up, increment a 32 bit counter then go to sleep.
every hour the micro must wake up, power up the GPRS module and transmit the count value using a http post (www.abc.com/test.aspx?c=<32bitcountvalue>,batterylife,imeino,currentdate-time.

requirments:
ide/compliler mplab/ c18/c24/c30
pcb layout: eagle

project payment in 3stages:
stag1 after pcb/sch files approved
stage2 after firmware complete
stage 3 after firmware is proven to work with our built hardware.

must be cotactable via skype.

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COM Express Type 5 Motherboard Design

Aug 19

Requires Electronics, Microcontroller knowledge.

You are to design and prototype a Type 5 COMexpress module – extended form factor.
http://www.smallformfactors.com/pdfs/Kontron.Cat06.pdf

Applicants must have knowledge and prior experience of Intel chipsets and high speed circuit design. Ideally you should have a working relationship and NDA with Intel already in place.

Simplified specification –

Intel Core i7-840QM processor soldered
Intel X48 chipset with ICH10R southbridge
2x ram slots for DDR-3 mobile dimms.
32 lanes PCI-e available on COMexpress pinout.

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Miccrocontroller Based Security System

Aug 18

Requires Electronics, Engineering, Microcontroller knowledge.

Design a microcontroller based security system with PIR sensor. When PIR sensor is activated, the system should send an SMS/ Voice call to some pre-defined numbers. The administrator mobile number should be able to change the predefined numbers using SMS command with a passcode.

Contact me for details

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Micro-controller Based Lighting Control

Aug 17

Requires Electronics, Microcontroller knowledge.

Hello, this is a micro-controller based lighting control project. I want simulation and PCB layout in Proteus. The following conditions have to be followed -
1.Micro-controller will be ATmega8
2.have to deliver PCB layout in Proteus
3.code should be written in embedded C/C
4.code will be compiled on Codevision or AVR studio
5.code will be my property

Those who are interested please contact through PM for more details. Please contact ASAP.

Thanks.

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Eagle PCB Layouts

Aug 16

Requires CAD/CAM, Electronics, Microcontroller knowledge.

I need a component package and simple layout completed for a project. Shouldnt take much more than an hour.
Essentially just need an LCD + LCD driver
need it ASAP

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POS Logger

Aug 16

Requires Electronics, Engineering, Microcontroller knowledge.

I am lookingfor a system/ software or hardware that can be connected to an Ingenico POS terminal(5100, etc). This system is required to log all transactions and wirelessly send the 3 track data and pin (time and date stamped) before the data is encrypted.

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GPS, SMS Microcontroller Interface

Aug 15

Requires Microcontroller knowledge.

The purpose of this system will be to send and receive SMS communications via a GSM and PS module interfaced to a PIC microcontroller using serial data transmission.

The micro should have 4 switched outputs, and 4 momentary outputs.

Should have an interrupt based alert feature,such that, if the interrupt line is triggered, either by going high / low, then an SMS message should be sent instantly.

This message should also contain the GPS co-ordinates.

The system should also be able to respond to certain messages sent to it via SMS, such as switch outputs, return system status, start gps logging.

The messages will need to be sent in the format PASSCODE*ACTION ie 1234*LATCH1 or 1234*TOGGLE1 or 123*STATUS etc.

The system should also be able to allow passcode to be changed via SMS ie PASSCODE*CHANGEPASS*NEWPASS ie 1234*CHANGEPASS*4567

Finally, the system should only respond to the registered mobile number which would have to be saved to eeprom on the PIC from the first message sent it containing the word REGISTER*MASTER.

This number should be able to changed at anytime using PASSCODE*DEREGISTER*NUMBER*NEWNUMBER where number is the current stored mobile number, and newnumber is the new master mobile number.

This should be coded in either mikroC or mikroBasic.

Pin layout for the pic is open at present, so that would be upto you, how you wish to connect the modules. inputs and interrupt trigger.

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Private Project For Tucupeis

Aug 12

Requires Microcontroller knowledge.

Private project for tucupeis

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PIC Microcontroller/ PCB Design And Prototype

Aug 12

Requires CAD/CAM, Microcontroller knowledge.

Our main requirements are :

PCB design and prototype (5 units) Embedded microcontroller. PIC

# PIC18F67J60 microcontroller
# 4Mbit on board serial flash for web pages storage
# ICSP/ICD connector for programming with PIC-MCP, PIC-MCP-USB and programming and debugging with PIC-ICD2 and PIC-ICD2-POCKET.
# Reser button
# User event button
# Power plug-in jack for +5VDC power supply
# Voltage regulator +3.3V and filtering capacitors
# status LEDs ( power and communication )
# with the ability to connect all available input/output ports via pin headers.

http://www.olimex.com/dev/pic-web.html

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Plc Serial Modem

Aug 11

Requires Electronics, Microcontroller knowledge.

PLC modem ( power line comunication ~220 V to serial TTL )
PCB design.

P.S contact me for more details.

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Two Microphone Speech Enhancement Module For Windows

Aug 7

Requires Electronics, Microcontroller knowledge.

We need a speech enhancement module for Windows XP/Vista/7 (32/64 bit) for langauge examination. Each candidate wear a headset which has microphone #2 on one ear piece (for recording the neighbour candidate speech and environment sound) and microphone #1 (for recording the candidates own speech). Both microphones #1& #2 will connect to a usb sound card (cmedia 6206 chipset) with two microphone inputs. We need the speech enhancement module can use microphone #2 s recordings as reference to filter these noise/sound from microphone #1s recording so to deliver a clear and silent speech recording for exam assessment.

Since we already made own sound card driver so we just need a module to compare and filter the neighbor speech and environment noise.

Note: environment noise in general not much but neighbor speech quite much because candidates are sitting close.

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Nano Electronics

Aug 6

Requires Electronics, Engineering, Microcontroller knowledge.

All the details are there in the doc
pls check it and let me know
http://dl.dropbox.com/u/2852409/Assignment-1.docx
can pay less than 50$

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Output To Parallel Port From VBA Access

Aug 6

Requires Electronics, Microcontroller, Visual Basic knowledge.

I need to send a signal (go high/5v) on the parallel port of the xp pc. I have a Access database built that we scan the boxes bar code) and print the label. I can put the code in Access and add a dll driver but I cant get the VBA code to work for me. I will add it to the proper events on the forms and button as needed if you get the code working.
We are going to send the message to a basic stamp and it will advance the belt to the next box and we will start the process over. I would be happy to have some help us use a serial port and communicate data if it would be easier to complete the project.

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Mc9s12c32 Coding Microcontroller Based Project

Jul 28

Requires Electronics, Microcontroller knowledge.

Please check the attachment for the project details
budget 30$ .need to be completed asap.
thanks

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Piezoelectric Impact Counter With LCD Display

Jul 28

Requires Electronics, Microcontroller knowledge.

Design and build of a micro controller based circuit that counts the number of times an object has been

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Radio Controlled Aircraft Combat System

Jul 28

Requires Electronics, Engineering, Microcontroller knowledge.

To design a combat module for use with radio control aircraft of all sizes and materials. In essence, this product will give RC pilots the experience of actual combat, comparable to modern video games. Using two way transmitters, the plane will communicate to the pilots

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Embedded Voip On Pic32

Jul 26

Requires Electronics, Microcontroller knowledge.

I need a program for pic32 with the following specs:
sip, sdp, rtp, rtcp and stun (or any other nat transversal) protocols
the p32 will only be required to receive incoming sip calls
p32 will never initiate sip calls and will never require any incoming or outgoing authentication
no call transfers, no notifies no nothing.. just the mininum sip implementation to be able to receive calls and bridge audio

the pic32 will have 2 connections to the outside world:
1.- ethernet (could be using internal MAC and external PHY or external enc28j60 or enc424j600 mac+phy).
2.- spi SLAVE connection to external dsp/uC to compress/decompress speex/g711u/g711a/gsm audio (probably will be a dspic or another p32) but this second chip is outside the scope of the project

can use any opensource sip/rtp stacks as long as the libraries are provided as readable source code

the source code should be provided and be well documented

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Connection Of PIC16F876 To LCD (very URGENT)

Jul 14

Requires Microcontroller knowledge.

Hi,
I am makin a project in which i need to conect a PIC16F876 or PIC16F877 to an LCD driven contrller
HD447865 in 8 bit data mode. I have an error in my code and i cant find out why it doesnt work.
I need this to be fixed quickly.Its an after school assignment.

PM me for the code.

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Usb Dialer

Jul 10

Requires Delphi, Microcontroller knowledge.

The idea behind this project is to create an application that can control GSM/CDMA phones connected to a PC/MAC thru the usb port. Up to 100 devices should be reasonable.
A lot of parameters for the application would have to be defined, but the important thing is that the programmer be knowledgeable in usb port programmation, as well telephone API programming. Its necessary to be able to discover the commands for a specific device (if no documentation provided).
The project is open for improvments as it goes. Logging of all actions and results/responses will also be an important part of the application.

General idea:
connect XX GSM/CDMA phones by usb, give a list of phone numbers to the application, it will then start to send the dial command to the handset (each handset receives a number) and monitor the calls (reporting status of line: busy, off hook [thus recording connection time], no answer), record the results to file…

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Circut Design And Prototype – Pressure Sensor LED Readout

Jul 9

Requires Electronics, Microcontroller knowledge.

I require a circuit design and prototype for a medical device that will convert hand grip pressure on a cylindrical object constructed of medical grade silicone to a LED Readout. The LED 5-bar readout will have red red amber amber green indicator of handgrip pressure on the cylindrical silicone bar. The bar readouts will indicate levels of pressure from soft (bottom red) to firm (green) Actuation of the sensor/readout will occur on application of pressure. De-activation will occur ~60 seconds after last activity. The power source will be a button battery. The construct must use smallest possible components. The sensor must operate being encased in Medical Grade Silicone. As it is a medical device, the sensor must be able to tolerate (in off state) 140 degrees Celcius in an Autoclave. The LED readout and power and MCU circuit will be detatchable to avoid autoclave. The force range would be 0 – 100kpa, and the sensor preferably must be cylindrical and measure lateral forces on the cylinder of med grade silicone. This will be used to measure grip strength of infants. Smaller is better. The sensor should read approx 0 – 100KPa.

A sensor range need to be indicated due to dampening of the force due to the Silicone. That is – the grip strength will be 0 – 100kpa, but I need to be able to interchange the sensor to accommodate the dampening effect of the Silicone till I get an appreciable reading. The other way that this could be acheived is calibrating the MCU to account for the loss of sensitivity or having an adjustable sensitivity.

The bid will include 1 Comprehensive Circiut Design and component list with specs, 2 Working Prototype (not including silicone encasement) 3 Posting the prototype to Canberra Australia – Address to be supplied to winning bid.

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XP Embedded Build

Jul 9

Requires Microcontroller knowledge.

Build an XP Embedded OS to be deployed to a VIA EPIA PX5000EG Pico ITX Embedded Board Eden 500MHz (or similar) with drivers for LabVIEW runtime.

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Gear Indicator And SpeedoHealer For MOTORCYCLE

Jul 7

Requires Microcontroller knowledge.

I want a plug and play gear indicator which shows what gear the bike is in and a speedometer healer which correct the speedometer to actual speed in comparison with a GPS.

I want the unit to be able to work for a 07 Honda CBR600RR

This unit must be compact, integrated and installation should be plug and play.

Also a nice feature to include is record top speed.

i have include a source code and schematic of a gear indicator.

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