Freelance Jobs

Outsourcing jobs for programmers, explained by programmer

Electronics jobs

Current Monitoring

Mar 13

Requires Electronics knowledge.

We are after an energy monitoring device. We need to measure a maximum of 32 amps @ 230volts passively using a current transformer. It needs to have multiple channel support, i.e. measuring 48 branch circuits in a distribution board.

We are open to offers re design / programming / production. Initially we are after a system that will measure unto 48 circuits. This can be made up of 6 x 8way boards if needed.

The output needs to be able to be queried via a HTTP get process or SNMP get request. The voltage will be regulated by a UPS system @ 230 volts.

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RS232 4 Digits Serial Led Module In Cascade

Mar 11

Requires Electronics knowledge.

Dear Sirs,

We need something like this : http://www.siliconcraft.net/SC4DLITE-SERIAL%20LED%20MODULE.htm

We need a cascade of 4 digits Seven Segment LED Serial Display. We need a line of 50 modules, and I have to be able to send to each module a number through my computer RS232 port.

To understand, I have 50 different products in my warehouse, each product in one box, all 50 boxes are in line. When I have a order, I want to display the number of items the operator has to pick up of each box. I put the display in front of each box. Example, I have an order of :

2 items product A
1 Item product B
5 Items product C

Then I need the display in front of the box that have the product A, show "2", the display in front of the box that have the product B, show "1" and the display in front of the box that have the product C, show "5"

I need all the info and schematics to do this.

Thanks.

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USB Digital IO Board + Windows Control GUI

Mar 11

Requires C#, Electronics, Microcontroller knowledge.

Create a digital IO board, connected to a PC via USB. The board is driven by an on screen GUI.
Tick boxes control output channels and the analog voltage is displayed onscreen.

The analog input can be switched between an output connector and a trim pot resistor by the use of a jumper.

Board must contain the following.
x5 Digital output 0-5V
x1 Digital outputs open drain or open collector
x4 Digital input
x1 Analog input 0-5V

Power supply driven via USB bus.

Hardware requirements : Atmel or Microchip USB device only,
: IO Connectors screw type
: microprocessor code loaded via 0.1" pitch SIL connector.
: Digital output Open drain/collector 15V,1Amp DC Max tolerant.
: Digital output 5V at 20mA
: Digital input diode protected ( 0-5V )
: Analog input diode protected ( 0-5V )
: SMT / 0603 / 0805.

PCB Layout : Maximum size 50×50mm , x4 M3 mounting holes in each corner.
: 2 layer PCB
: USB connector to be position in PCB edge center
: PCB layout to be neat tidy and professional
Items to be provided : Schematic , PCB layout, Gerber, BOM (excel), PDF copies

Schematic capture and PCB layout must be in either Altum / Orcad

Windows control GUI : C# .Net
: Compatible with windows XP, Vista
: all source code to be provided
: Source code to be clear and ordered ( No monkey jungle code )
: Please view image file provided

Documentation : Basic documentation is to be provided.

Bidders must state their intended track width and via hole dimensions, to determine level of experience.

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Iphone App

Mar 11

Requires Electronics, iPhone knowledge.

Need someone to make me an iphone app

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Strain Sensor And Associated Electronics

Mar 11

Requires Electronics, Microcontroller knowledge.

Hello,

My name is Vadim. I am developing a device which I have invented and need the help of an EE.

The device needs to take readings from a strain gauge at an interval around 60 Hz, display them on a screen (perhaps a two digit, 7-segment LCD) and then, upon a buttonpress retain the last measurement upon the screen until the button is depressed again.

Further, there needs to be a way to fine tune the relationship between the numbers on display and the output of the strain gauge to account for variation in manufacturing to improve interpolability between prototypes and eventual devices.

The device has two equal volumes to accommodate electronics, display, and battery of around 40mm x 10mm x 20mm although I would prefer to use as little of those spaces as possible.

I am would like to know the cost to develop / program a suitable board as well as deliver 10 units for use in prototypes.

If youre interested, please include references and/or a CV with any proposal. Thanks and I look forward to working with you.

–Vadim

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Level Gage

Mar 11

Requires Electronics, Microcontroller knowledge.

Hello,

We intend to use an ultrasonic sensor to measure the liquid level of a container, the sensor has a nominal frequency of 40khz with a detection range up to 3m. The heigth of the container will be diferent and it could go from 0.50 up to 2 meters. We want to use a PIC and the chossen family should be conservative priced. The range should be adjustable to adapt the measurement of diferent container sizes, outputs will be 5 leds that will indicate 5- Full, 4- 3/4, 3- 1/2, 2- 1/4 & 1- Empty. You can see the sensor at the following adress

http://futurlec.com/Ultrasonic_Sensors.shtml

If aditional details are needed please advice. The function of the PIC is to send a signal pulse nd then wait ultil it is reflected by the liquid and calculate the distance when it heard back the pulse

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Custom Video CAM Recroder.

Mar 10

Requires Electronics, Microcontroller knowledge.

Hi
I need a recording mini custom video cam recording device…

Highest resolution real time video.. 720*480 30fps or greater… Clear, sharp, videos!!..

Recording mode: Continuous recording until memory is full or manually off..

video should be save by the hour…and re-arm to continue recording until memory is full or manually off.

Adapter Type: mini USB adapter charging cable

Battery Type: Lithium-ion rechargeable…. Must record 24hrs…Can use several Lithium-ion packs with voltage regulator..

Cam view 120 degrees… all angles

Cam head must be cable optic fibers and able to allowed me to move the small mini cam head to where ever fits best for viewing.

Night version cam: Would need to find a solution for night cam with out using RED LED lights..

The video cam will not use a SD memory card to save..
I need it to save video files to a flash memory or what ever IC is best..

This is for sports as we have many competitions, long race, some times up to 72hrs, so video needs to be at real time with night vision..

Smallest, light and compact

A sample of a existing cam on the market is how I would like the PCB board to be lay out… However with the major changes

PCB size need to be the smallest as possible with the smallest components….
Desire PCB size will be provide….

A working prototype is needed, as I been scam once, sent me a cam set that was bought from a spy store…and not custom made as requested…
All files needs to be provide once payment is made for future development…

Hardware should be very simple: Power on and record..

camera is not needed only recording and audio

USB when connect to PC should start to play..
Operation System: Windows 98SE/2000/Me/XP/Vista
High speed recording and quick light response

Im very in need of this custom work.. So hope I can choose as soon as possible and starting recording are next spring race

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Digital Clock And Temperature Sensor–Projects For Sale

Mar 10

Requires Electronics, Microcontroller knowledge.

I am selling my full working projects

1- Digital Clock
2- Temperature Sensor

Further Information:

All are using the Microcontroller 89C51. The full codes and Proteus circuit diagrams, I will provide you.
These projects are tested.

Further additions, I have made to Digital Clock project is the alarm, stop watch and calender. The calender is coded for next 100 years.

I ll be available on messenger so that you can get any help from me about the code part or any hardware problem. I ll always be there for helping you out to make a perfect project.

Each project is of only $100.

High regards

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Flash-based Animation Project For Stepper Motors

Feb 26

Requires Animation, Electronics, Flash, Microcontroller knowledge.

As discussed

Other can bid as well, so long as they include a copy of their current resume/cv.

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Need AMERICAN Specialist / EBook Writer: ‘Make Solar Panels’

Feb 24

Requires Electronics, Engineering, Scientific Research knowledge.

I need a native-speaking american writer to write an eBook which shows a step-by-step comprehensive guide on how to create your own solar panels, and hook them up into your homes electricity system. The method should emphasize cost-effective procedures. The eBook could also have related helpful information for people who would like to create their own solar panels.

The chosen candidate is REQUIRED to have prior experience and/or be a specialist in this topic. THE EBOOK *MUST* EXPLAIN A PROCEDURE THAT ACTUALLY WORKS.

The eBook should be professionally formatted, have example pictures/diagrams where appropriate, and be at least 30,000 words.

To help prove you are serious and competent, in your bid and/or PM, please submit:
1. An example of any previous work you have done
2. List any experience in this topic you have had in the past
3. Submit a draft/example of the Table of Contents you will be using to write the book.

** IF YOU DO NOT FULFILL THESE THINGS THEN YOUR BID WILL NOT BE CONSIDERED **

Thanks, and happy bidding!

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Labvw Proj For Kpkomairrk

Feb 24

Requires Electronics, Microcontroller knowledge.

As discussed

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PICUniversalS Proj For Kpkomairrk

Feb 24

Requires Electronics, Microcontroller knowledge.

As discussed

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Beslc003 – Telemetry Module

Feb 24

Requires Electronics, Engineering knowledge.

This project is for a telemetry module based on a moderately complex Microchip reference design with a number of modifications.

Provided
- Reference design information
- Modifications required

Deliverables
- Eagle schematic
- Board layout

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Simple GSM / GPS Tracker

Feb 24

Requires Electronics, Microcontroller, Wireless knowledge.

I am looking for a fast turnaround on this project. I require a schematic, PCB design and production of a single prototype, including firmware for the following functionality. The deice will have three buttons (plus one power button). The devices is programmed via SMS to associate a number with each of the buttons. When a button is pressed, the system immediately sends an SMS message with the last recorded GPS coordinates, attempts to update these coordinates and if a new coordinate is shown, then sends an update SMS. All configuration commands must include the password (6 characters), configurations commands include :-
Set number for button 1
Set number for button 2
Set number for button 3
Set new password

Additional command result in the reply send to the requesting number include:
Sleep GPS X, causes the GPS to be disabled for X number of 15 minute periods (maximum X = 32)
Sleep SMS X, causes the GSM to be disabled for X number of 15 minute periods (maximum X = 32)
Update Now, causes the system to enable to GPS is disabled, reports immediately last know coordinates, upon receipt of a new set of coordinates sends an update SMS.

All configuration commands a responded with an OK is successful or NG if not successful.

Preferable charging is via mini USB. Firmware updates should be achieved via USB.

There is no requirement for voice support at this time, however consideration should be made for the possible inclusion of this in the near future.

In addition to the finished prototype, I will require the schematic, PCB design in an industry standard format plus source code for the firmware. If developed within a specific IDE, I wil also require the name of the IDE used, the language you used, the source code in that language and in the native machine code (if possible) to be delivered (via e-mail is sufficient).
Preferable payment terms are 30% upfront, 30% upon receipt of the prototype and 40% upon successful testing. Testing will include all commands and battery life. GPS reception will be tested in all weather conditions and within a city environment with high rise buildings.
A further 10% of your stated contract price will be on offer if the prototype is delivered within 20 working days.

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Beslc002 – Motor Control With 33887

Feb 23

Requires Electronics, Manufacturing, Product Sourcing knowledge.

I urgently need a simple design with the Freescale MC33887.

Specifications:
- Power supply is 24V
- Motor draws less than 3A
- 3 input signals: Left, Right and PWM
- FS signal on red LED

Deliverables
- Schematic
- PCB layout
- 3 prototypes

Happy bidding,
beslc

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Beslc001 – PCB Layout

Feb 23

Requires Electronics, Manufacturing, Product Sourcing knowledge.

I need to have a PCB layout and 3 prototypes made starting from an Eagle 5.6.0 schematic. Details will be provided through PM. Component count would be around 100; pad count around 600.

Provided:
- Eagle schematic file
- Eagle board file with some components placed. The position of those components is not to be changed.

Deliverables:
- Back-annotated Eagle schematic file
- Eagle board file. Double sided with ground plane on the bottom side. All components placed and completely routed. Final board will have to pass CE approval testing.
- BOM with Manufacturer and part number. Farnell or RS-Components part numbers are also OK.
- 3 completely built prototypes.
- Cost estimate for series production

BR,
SLC

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Competition Grade Xbox 360 Controller

Feb 23

Requires Electronics, Engineering knowledge.

I am a professional gamer who competes on the Xbox 360. Me and my team attend tournaments all over the world for thousands of dollars in prizes.

The project Ive been working on is developing a competitive gaming controller designed for the Xbox 360. Ive done a lot of initial research but have hit a few snags which I was hoping you could help on, then was also looking to have the prototype manufactured and set to a point where I can mass-manufacture it.

Parts:

Switches (For Face Buttons, Possibly Triggers)

I looked into it, these are what is used in competition grade keyboards at the moment and they seem like they would serve the purpose for a controller as well. Unsure as to whether putting these into a controller, which is much smaller than a keyboard, is feasible though.

http://www.cherrycorp.com/english/switches/key/mx.htm

Triggers

I want to have a setup for the triggers where they can be removed and replaced, similar to the triggers on a paintball gun. Ideally this would be able to make an effect of having a hairtrigger (where just a tiny amount of force is enough to hit the switch, firing the gun in game) or to allow for a longer trigger pull if that is what the player prefers. If this isnt possible/feasible then the trigger needs to default be set up as a hair-trigger. In the current Xbox 360 controller a potentiometer is used which goes from 0 to 100, at which point the gun fires. Ideally Id like to replace this with a switch, so that the response time is much quicker.

Joystick

Here is the part which has been used in every controller since the Sony Playstation:

http://www.p3america.com/pp/802.htm

The cap on top has changed, but the joystick part has remained the same. It is just 2 potentiometers which send directions back to the console. This is where Ive had a lot of issues as to how the part can be improved while keeping costs down. The stick isnt bad at all but it doesnt move as smoothly as it needs to for competitive play, and there is a large "Dead Zone" in the center of the controller before the controller sends readings, making it hard to make finesse adjustments.

Plastic/Form Factor

Im not sure how to go about this part of the process, and research didnt turn up much. Id like it to closely resemble the form factor of the current Xbox 360 controller.

=========================

Im admittedly new to all this and while I have a ton of knowledge on the end product and its use competitively, I really dont know much about the manufacturing/engineering aspects of it all. Ive researched it enough so that Im not a complete idiot on the subject, but I need to know more and connect with people who can help make my vision a reality.

Let me know if you need more information.
Date and budget are flexible.

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POST Firmware Development For Atmega Board

Feb 18

Requires C/C++, Electronics knowledge.

P.O.S.T. C code routines for a board with an Atmega128, AT45DB041D, DOGM163W-A LCD (ST7036 controller),DS1339C RTC, 3×3 keypad, 1 ADC and I/O.

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Job Assignment With Tracking

Feb 18

Requires Electronics, Wireless knowledge.

This project should be bid on only if you have prior experience with using GPS / GSM /module in Vehicle tracking.

I am looking for a hardware and software developer (mechanical/electronic engineer) who can implement a complete custom project for a GPS/GSM/GPRS tracking unit. The unit will be an in-vehicle touch screen device and will gather GPS data and other data (speed, distance, exceptions etc.) and relay the information back to a server via wirelessly via GPRS or via wifi depending on network availability. The unit will also receive information and messages from the user via the server and send back data to the server.

Hardware:
- The appropriate candidate would first define the system, recommend the appropriate chipsets and components for the in-vehicle devices, and then complete the specifications board layout, general electronic circuit design, firmware, prototyping including device prototyping, debuging and device manufacturing, etc.

Software:
- The front end will be web based and will also require a light tracking application on mobile phones. System architecture will include users multi-level access and display for security purposes, assigning of geofencing areas for individuals as well as vehicles, etc.

Reports will be generated and users will be able to retrieve reports (examples below):

ignition on-time and off-time
arrival and departure of locations
idling time, drive time and distance travelled
Out of office driving time and distance
Geofencing seting and alerting
GPS location of any vehicle with a configurable time report (every x seconds)
speed alerts
POI entry and exit alerts
SOS
failure function alert report displaying out of service devices
over-the-air configuration for in-vehicles firmware and software updates

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RS232 To Meter Bus Converter Tested Prototype Board Required

Feb 18

Requires Electronics knowledge.

Only for Electronics designers experienced with Meter Bus (Europe)
http://www.m-bus.com/mbusdoc/default.html

i need RS232 to M-Bus Master converter PCB Board Prototype with Circuit in shortest possible time.

You should already have experience with working prototype and shall be able to provide one quickly.
we need this to connect to the RS232 port of a PC and act as M-Bus master for upto 16 MBus Slaves

N.B. : M-Bus is different then Modbus.

Deliverable:
- Circuit Design that you have already tested yourself in past
- 2 nos. working prototype.. as small as possible

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PCB Integrated Antenna

Feb 17

Requires Electronics, Engineering, Wireless knowledge.

I need a design for a PCB integrated antenna. which will work in 30 MHz band.
you must prove that you can do it. I prefer already made designs.
happy bid

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I/o Controller

Feb 15

Requires Electronics, Microcontroller knowledge.

Design a microcontroller circuit which will communicate with another system via rs232 communications with adjustable communications speeds. 32kb is the target communication speed.
The circuit will read and debounce 64 5volt inputs and transmit the data out via serial port.
The circuit will then receive data from the serial port and latch it to led driver outputs (32).
The system will also read 4 analog inputs, and write 4 analog outputs. (0 to 5v)
Processor is up to you, pending our approval.
A working pcb would be ideal. SMT is not required. PCB Headers can be specified later.
The system will function to read and display operator switch selections on a CNC machine interface. Discrete inputs and outputs are required, not a matrix.

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Battery Powered Method To Measure Water Temp W/LCD Display

Feb 15

Requires Electronics knowledge.

We need designed and specified a method to measure the temperature of running water in a plastic pipe about .5"dia. The sensor would be inserted into the pipe and wiring coming out of a sealed hole. The accuracy should be within two degrees. We need to display the temperature on a small simple LCD display that is positioned within a few inches of the water. The circuit must be battery powered by a small over the shelf battery,The unit will be operated a for about one hour everyday. We would like the battery to last atleast one year. The temperature range is from 35F to 120F. I will design the mechanical aspects and ensure the LCD and other components will be water proof. I just need the circuit designed and prototyped.

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Circuit Design/prototype For Vector Scan Output

Feb 13

Requires Electronics knowledge.

I need a prototype and schematics for a circuit that will take X/Y/Blank output from a vector scan circuit and convert to a signal that galvanometers will use to control laser output.
The laser output X/Y scale should be adjustable in multipliers so that the image resolution or X/Y axis can be increased or decreased (say with a potentiometer).

The circuit will be used for legacy video game equipment :
http://www.video.ch/memorabilia/vectrex/vectrex-manual.pdf

Essentially the circuit will be attached to the mainboard of this unit at the X/Y/Blank output and rather than displaying on the internal vector scan monitor will go to this circuit and transfer output to scaleable laser.

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Magnetic Card Reader That Collects/stores Data

Feb 12

Requires CAD/CAM, Electronics, Microcontroller knowledge.

This request is for a track 1,2,3 magnetic card reader that collects/stores all 3 tracks of data.

-The magnetic head and magnetic stripe will be ISO and 75 to 210 BPI, alphanumeric.
-Speed: card speed through the unit may vary from 3 ~1000 ips
-If possible, I would like the card data recovered even when the swipe has not been done correctly, jitter, half swipe, etc.
-Automatic Gain Control
-memory: 128K or higher, whatever the design will allow.
-USB interface- the mini/sub USB connector.
-Battery powered and low battery indicator/LED- 3.7V 65mA or greater, Lithium Polymer. This will need to be charged via USB.
-Time stamp shows date and time with every input
-Data downloadable to the computer via USB
-Auto Power Off /Switch Control
-MCU Standby Mode
-Password Protection
-Maybe 2 or 3 small LEDs, for status and battery.

The battery and magnetic head will be off board, not further than 60mm away.
Now the fun part- I need this to be as small as physically possible. Under 5mm in width, under 3mm in height, the length can be up to 40mm.

Im open to additional ideas and suggestions too, including software to access this.

Thank you

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Medicall Device Cunstruction

Feb 11

Requires .NET, Electronics, Engineering knowledge.

Hello, i am interested in having someone doing the following project for me.

this is what i need :

i want to create a device, that will count the pulse of the human and the blood oxygen. this device will be put, to the humans hand and will loook like a Bracelet. i do not want it to be too bug, i need it to be as slim and small as possible.
this bracelet will be sending the data via a bluetooth device (that will be on the bracelet), to a pc

so i also want you to create an application for pc, tha will reveice these data, and stores it.

the app, i want it to be done in vs studio 2005-8, using visual c#, and .net framework 3.5 and sql server.

at the end of the project all the plans of the device and all the tech aspects my be handed in, so i can do another copy of it if i need to in the feature by my own.

also all the source code and detailed documentation is needed for the pc application

as i do not have a bug budget, i need you to keep the price as low as possible, and also try to use whatever needed so we keep the cost down.

i do not care if you use already made mini devices so you create the main one, or if you need to create your own, i just need the cost to be as low as possible

also i am interested in a small timeline,so please try to have all your ideas and bids requirements well organized when you pm me.

thank you

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Find A Digital Camera For Photography 12 MPixels IR Sensing

Feb 10

Requires Electronics, Product Sourcing knowledge.

We need to find a digital camera for photography with the following characteristics and maximum price of U$1,100.00 including lens (18mm – 70mm). The camera needs to have the following characteristics:
I)Title: Camera to register license plate of car in over speed until 180 Km/hour day and night
1) 12 MPixels or more
2) Needs to be controlled through an interface Ethernet or USB
3) Needs to satisfy a specific protocol ISO or have a SDK Kit for development of a software to control it.
4) Needs to take the picture and transfer the information to a PC computer in less than a 1 second.
5) Needs to have a digital output to synchronize a flash to 1/1000 sec.
6) Needs to fix using a command the shutter speed to 1/1000 sec.
7) Needs to be sensitive to IR light for use during the night period using IR flash of high power (300 IR leds with 1 Amp of current each during 2milsec, 6 degres of aperture).

Thanks
Best Regards

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Find An IP Camera And Two Models Of Lens For It

Feb 10

Requires Electronics, Product Sourcing knowledge.

We need to find an IP camera and two models of lens for it with the following characteristic and a FOB price maximum of U$ 320.00
The characteristics of the camera are:
Video Camera for Registering of License of Vehicle Speed Violation
I) Product Specification
1) Type
IP Camera
2) Protocol
MJPEG-4 or MPEG
3) IR Sensitivity
From 700nm to 1100 nm
4) Lens Mount
C/CS – with adaptor or directly
5) Network
Ethernet RJ-45 Connector
TCP, UDP, IP
6) Device
Progressive Scan CMOS or CCD
Not acceptable interlaced scan
7) Minimum Illumination
Color 0,15 Lux -Better 0,1 Lux
B/W 0,05Lux or better
8) Day/night function
Automatic Mechanical IR Cut Filter
9) Electronic Shutter
Need to be fixed through a command to 1/500, 1/1000 sec or 1/2000 sec.
10) Lens
Zoom 6 – 60 mm (one model) 8-80mm (second model) auto iris (DC controlled). IR Compensated, 0,7Mpixel, F1.4 or better.
The iris needs to be controlled automatically during the day light or commanded (in this case it is necessary a command to read the light intensity).
During the night the iris needs to be commanded to open totally.
The zoom and focus will be fixed manually.
11) Pixels
0,7MPixels
12) Kit for development of code program
It needs to have a SDK kit
13) Power
12 VDC or 24VDC or between those values
14) Flash Sync
It is necessary a digital output to synchronize the external flash to 1/1000 sec shutter
15) Image frame rate
30 FPS VGA 15 FPS SXGA
16) Command to Record the Photo
By Ehernet protocol or through a digital input.

Thanks
Best Regards

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Very Easy Job – Just Your Own Opinions

Feb 7

Requires Copywriting, Electronics, Report Writing knowledge.

Hello good freelancers!

The proposed job fairly easy and interesting for anyone who speaks English. Still, it is desirable that English is your native language. You do not need any knowledge in a particular area.

I am gathering a team of people, who can write few words about some electronic products in their homes.
Its quite simple!
For example, at first I need honest human opinions about your own cell-phone.
Like this:

1.
I purchased my Sony Ericsson W995 in August and here are some observations, that are beyond the specifications that you will always find on the Sony Ericsson web site.
I received the handset along the following: 1 GB MP3 player, 2 years insurance, 1-year warranty, Standard accessories to connect to PC, Headphone etc.
About the features…
The Delighters : Google maps locate everything and anything for you. Battery life if great – atleast 4 hours talktime is guaranteed. Keypad is tacky and gives a nice feel during use. The bluetooth headset connection is easy and works right the first time and is 100% assuring that it works much better than the Z550i i had previously.
The Disappointers : The display gets scratched easy – and deep at times. The Music menu comes up now and then on its own, fortunately the songs do not start off on their own!
The Neutrals : GPS hogs battery and heats up the unit – but that is normal stuff.
Summary : A great Phone, works reliably, no complaints or regrets , and is a good companion. The price seemed a tad high. Overall, i love it :-)

OR like this:

2.
The Nokia 5800, aka “The Tube” is quite a formidable phone offering many great advantages. First off the price, which can range anywhere from 200 to 300 euro, it isnt little but it is pretty savvy when compared to the 700 euro of the new IPhone. The 5800 has everything you might need in a phone, unfortunately though it isn’t problem free.

You can write all that you think about your phone or smart.
Send me just one mini-review and Ill decide as far as you do for long-term work. Please do not copy any opinions from other sites. Ineed only your own true opinion.

Thank you in advance!
Best regards!

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Portable Mini Vibration Balancer Project.

Feb 6

Requires Electronics, Engineering, Handheld / PDA, Microcontroller knowledge.

I look for someone to design a mini portable single plane or two planes vibration balancer.

We will need hardware and software design for balancer.

We will need balancer to be power by USB port on a laptop or PC. which in turn powers its phase-reference laser tachometer and two ICP-compatible accelerometer.

The visual readout of laptop or PC shows signal level and phase tracking in analog waveform.

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Custom Time Delay Relay Curcuit Board

Feb 6

Requires Electronics knowledge.

I have a fairly easy project for someone who knows what they are doing with electronics…

Here is what I have…

down function) Relay sends out +12v – stays on

up function) Relay turns off 12v trigger.

So those are my triggers… +12v on and then off is off…

When trigger is +12v I need to output +12v on PIN1, and Ground on PIN2 for an adjustable amount of time, .25-2seconds (adjustable).

When trigger is removed, I need to output Neutral on PIN1 and +12v on PIN2 for a separately adjustable amount of time.

Voltages and such may change a little bit depending on the motor I pick up… but the idea and essentially the cost/difficulty should remain the same.

Basically what I am doing is triggering a motor in forward and reverse. Hope this makes sense… doesnt need to be super elegant… if you can do it on a breadboard thats fine if it works.

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