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Fixed Price: $20 - $60   |  Posted: 12h, 51m ago  |  Ends: 14d, 11h  |   0 Proposals
Hi, I'm looking for someone who can make a step-by-step, super simple explained tutorial on how I can build a drone based on Arduino. I need to know - All the parts that I need, including ebay links to order them (Find cheapest parts) - Step-by-step tutorial in simple language, on how I can assemble. Pictures/videos would be best if possible. - I need to have the code I need to run on Arduino for it to make it work - And overall I'm looking to build a small Quadcopter without camera or anything. This job is for those who have already built quadcopters/drones and can teach me how to build an arduino based on that is super simple to assemble and has cheap parts. I'm looking to spend maximum $100 on parts. I don't want to to google a tutorial and send me a link, but make it super clear on what to do so that with the instructions even a child should be able to follow the instructions. Type of drones I like (Simple and cheap ones:   [obscured]  /id/the-pencil-drone/ ) Som...
Category: Electrical       

J****rim
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| J****rim
|    Netherlands
Fixed Price: Less than $500   |  Posted: Aug 01, 2015  |  Ends: 13d, 20h  |   6 Proposals
Hello, I have purchased an LED controler called a WIFI 300 controler. The device comes with a number of pre-programmed sequences to control 5 meters of LED strip that you connect to the controler. I would like to hire a person to reprogram the WIFI 300 controler so i can add some new sequences and remove some existing sequences. Please let me know. Thanks, Harry
Category: Electrical       
Skills: Electrical Engineering, Electronics       

h****tun
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| h****tun
|    United Kingdom
Fixed Price: Not Sure   |  Posted: Jul 31, 2015  |  Ends: 27d, 20h  |   5 Proposals
This is a simple LCD laser projector that is similar to those seen on weather clocks (see image). I would like to have a stand-alone that can communicate with my iPhone app and other smartphone (android). Features and functionality include: Rotate to shine on any ceiling or wall operate on 2 AAA that will last at least 6 months Will turn off display when disconnected from smartphone Turn on LCD display when connected to Bluetooth device temperature of where device is (optional) Projection feature brightens as room light levels increase Will display Time Temperature and weather - received from smartphone
Category: Electrical       

f****412
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| f****412
|    United States
Fixed Price: Not Sure   |  Posted: Jul 31, 2015  |  Ends: 12d, 18h  |   5 Proposals
Hi, I need a high voltage circuit designed. I need to be able to transform a low voltage (ideally between 12-24V) to a very high voltage of 45,000V, so there is a potential difference between two electrodes of 45,000V (i can then vary the electrode size, distance to create the desired electric field strength etc). The output voltage needs to be variable to a minimum of the low input voltage and to a maximum of 45,000V.
Category: Electrical       

b****691
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| b****691
|    United Kingdom
Fixed Price: Less than $500   |  Posted: Jul 31, 2015  |  Ends: 4d, 15h  |   4 Proposals
hello Guys, i have a small electric circuit working with generator principle that needs to be improved. a PCB with coil on it passes by a magnet. the induced Voltage is then kept in Ecaps and is slowly released to drive 2 standard LEDs. please see attachment. the whole PCB is rather simple. only 9 components so far. in case there is small money needed for component etc, we will pay extra or ship from here...
Category: Electrical       

S****ial
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| S****ial
|    Germany
Fixed Price: Not Sure   |  Posted: Jul 30, 2015  |  Ends: 11d, 23h  |   22 Proposals
We need you to convert the attached Eagle Files to Altium. The PCB is a simple open source board created by SparkFun. In addition we need you to: 1: Use our own custom silkscreen art and place it into the final file. 2: Add .5" to each end of the board and add four through-holes in these areas, so we can physically mount the board with fasteners. 3: Change the solder mask to black. 4: Radius the corners 1-2mm. 5: Deliver to us a full Altium package, including BOM, 3D renders (top, bottom & perspective views), and output a SW2014 or equivalent CAD file so we can import it into our product's master CAD file. Do not alter the actual electrical engineering in any way. This is a simple file conversion job. REFERENCE VIDEO FOR CONVERTING FROM EAGLE TO ALTIUM:   [obscured]  /watch?v=mKk__RNxuwc MORE INFORMATION ABOUT OPEN SOURCE BOARD:   [obscured]  /products/13019   [obscured]  /tutorials/bc118-ble-mate-2-hookup-guide
Category: Electrical       

h****agi
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| h****agi
|    United States
Fixed Price: Not Sure   |  Posted: Jul 30, 2015  |  Ends: 26d, 23h  |   15 Proposals
Temperature control utilizing a 1000 ohm RTD input designed to output to a 3-32vdc solid state relay. The temperature control features power saving functions such as standby (reduced heat) and sleep (self power off) modes, a remote encoder / pot w/ momentary for user input, LED display and other calibration parameters. There should be an output to power (activate) other or additional modules and sleep mode may be inhibited by an external feedback from such other modules. Of particular interest is temperature calibration and related duty cycle settings as described later.
Category: Electrical       

p****ian
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| p****ian
|    United States
Fixed Price: $20 - $60   |  Posted: Jul 29, 2015  |  Ends: 10d, 12h  |   9 Proposals
I have an Autometer Speedometer that puts out a square wave at 5 volts DC. The faster the speed, the higher the hertz. I need a circuit that will trigger at 175 hertz and above and turn off below 175 hertz. It has to be powered by a 12 volt DC source. Would prefer if possible that the hertz setting can be made variable. I need it to put out a negitive trigger for a relay.
Category: Electrical       

e****to1
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| e****to1
|    United States
Fixed Price: About $20   |  Posted: Jul 28, 2015  |  Ends: 10d, 6h  |   1 Proposal
I have an audio source (portable cd player) connected to an amplifier through the AUX In. At the push of a button (preferably wireless) I need to have a device interrupt the current audio source by lowering its volume and instead feed a pre-recorded message to the AUX In to be played on the Receiver. The message is no longer than 30 seconds. This is similar to PA systems where when the announcers starts to talk the music is lowered. These are my constraint: 1. The solution has to be an existing device (or multiple devices) that integrates with my current setup. No computer solution. 2. I need to be able to easily record a new announcement on the device. 3. The cost should be less than $200.
Category: Electrical       

d****ava
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| d****ava
|    United States
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 10d, 6h  |   10 Proposals
My company is looking for a specialist who can offer us insights on how to get two electrical motors to communicate via a joy stick. We are working on an electric scooter, and we need an electronics Guru who can provide us with some electrical insight for building a rock solid mobile device.
Category: Electrical       
Skills: Materials Engineering, Electronics       

e****cts
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| e****cts
|    United States
Fixed Price: $500 - $1,000   |  Posted: Jul 28, 2015  |  Ends: 10d, 1h  |   15 Proposals
We are looking for a partner who could help us to develop an IOT box which will contain up to 48 home keys. The box should be able to be opened via password provided though the app which we are building already. The Box will have a safe type pin code lock and the password will be provided via the app. Once the user input the passcode, then the door of the box and lock of the specific key will be opened. The box will be powered via ac adapter and wifi/lan cable should be available. The box size should be under 50cm high, 30cm wide and 10cm deep. The box material can be anything light weight but need to have strength that normal human can not penetrate with bare hand. The box must have water proof version and non water proof version. Below is a spec which we assume. Bluetooth Option Spec: - 5V Power supply for controller - 24V Power supply for lock device - Microcontroller module 400Mhz - Bluetooth 3.0 module - Relay switch - Electric door lock device - Developed firmware - 9-...
Category: Electrical       

m****ly1
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| m****ly1
|    Japan
Fixed Price: Less than $500   |  Posted: Jul 28, 2015  |  Ends: 10d, 0h  |   2 Proposals
I have a Bluetooth Low-Energy beacon project that is based on a CSR1010. I have the beacon code working but the beacon function is currently broadcast (transmit) only. Now I need to add the ability to detect (receive) when another paired beacon comes into range. When another beacon comes into range it will trigger a PIO output. Need someone with lots of experience programming CSR BLE chips.
Category: Electrical       

J****lEE
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| J****lEE
|    United States
Fixed Price: Less than $500   |  Posted: Jul 28, 2015  |  Ends: 9d, 23h  |   17 Proposals
Hi there, I'd like someone to build a 12v circuit for me that provides a 60hz sinewave oscillator. We'll later take this sinewave oscillator and use some MOSFET transistors to amplify the signals. We'll then connect a transformer to create a 12v-to-120v inverter capable of 5000 watts. The power source of the inverter will be a 12VDC deep cycle battery rated at 110ah @ 20 hours. The battery will also be connected to an alternator providing 100 amps at 14.3 VDC. If you can build the oscillator, that's all we need for now - but if you think you can build the whole project, then great - please indicate that in your proposal. I look forward to your proposal! Please include the word "inverter" in your proposal so that I know you read this project description. Here's some reference material:   [obscured]  /watch?v=VDi_uFSr3w0   [obscured]  /wp/?p=415 I'd like the inverter to be as close to pure sinewave as possible, but that objective will be limit...
Category: Electrical       

m****ert
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| m****ert
|    Canada
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 9d, 23h  |   12 Proposals
I need you to make me a circuit (tangible, not just diagram) that will connect between 2 of my solar batteries (12 V). When the first one dies, I need it to switch to the other (backup) battery automatically and keep them relayed / connected so that the solar panel will begin recharging the first one (that died). Please let me know any info you need and how much you will make me this circuit for. May need 2-3 of these circuits, so please quote me per circuit made. Thanks so much!!
Category: Electrical       
Skills: Circuit Design       

c****sty
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| c****sty
|    United States
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 9d, 22h  |   10 Proposals
In need of an experienced NFC/RFID engineer to design and or provide input regarding design of an RF based tracking system for use in the health and fitness industry. Job will require some out of the box thinking and innovation.
Category: Electrical       
Skills: RFID, nfc       

4****ain
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| 4****ain
|    United States
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 9d, 21h  |   4 Proposals
I need to develop a prototype. The Product needed is a flat, flexible, rubber, waterproof, durable, working solar panel (all wires must be concealed in the flexible rubber structure). Around 3" x 9" in size with a strong velcro strap on the back.
Category: Electrical       

h****lan
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| h****lan
|    Ireland
Fixed Price: Not Sure   |  Posted: Jul 28, 2015  |  Ends: 9d, 21h  |   4 Proposals
I need to develop a prototype. The Product needed is a flat, flexible, rubber, waterproof, durable, working solar panel (all wires must be concealed in the flexible rubber structure). Around 3" x 9" in size with a strong velcro strap on the back.
Category: Electrical       

h****lan
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| h****lan
|    Ireland
Fixed Price: $500 - $1,000   |  Posted: Jul 27, 2015  |  Ends: 8d, 15h  |   20 Proposals
Project consists designing a PCB Gerber file consisting of four functions with four buttons: When pressing one of the four buttons an app on the IOS and Android will cause an action on the phone. The PCB would consist of BLE chip or Wi-Fi chip, Battery and four buttons.
Category: Electrical       

h****haw
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| h****haw
|    Spain
Fixed Price: Not Sure   |  Posted: Jul 27, 2015  |  Ends: 8d, 14h  |   4 Proposals
Hi we are seeking for an expert freelancer to develop and model a solar power system using an artificial neural network To accept your bid, kindly provide us with a brief description concerning both the contribution (enhancement that will distinguish your work from previous ones) and the methodology to be conducted
Category: Electrical       

m****lab
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| m****lab
|    Jordan
Fixed Price: Less than $500   |  Posted: Jul 26, 2015  |  Ends: 8d, 5h  |   3 Proposals
I am looking for a circuit designer (and possibly builder) who can use Broadlink Home Automation DNA to create an item that work through the Broadlink RM PRO to call lighting scenes. Broadlink is an existing semi-open source home automation system manufactured in China. The electronics seem quite high quality and they have created an aspect to their system called Broadlink DNA. This is a way that almost any other electrical appliance can communicate with the Broadlink hubs. Broadlink is a way of storing and centralizing remote commands for various light switches, TV and airconditioning systems. By using an APP on your mobile the system calls the stored commands and broadcasts them. What I am looking to do is create a unit that has a set of buttons that can be programmed through the APP to call scenes from the Broadlink. The scenes are a series of commands that activate a set of devices. This could be a "arrive home scene" where all the lights in a living area are switched ...
Category: Electrical       

b****own
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| b****own
|    New Zealand
Fixed Price: Less than $500   |  Posted: Jul 26, 2015  |  Ends: 7d, 22h  |   5 Proposals
Hello, I am looking for ideas / approached / protocol suggestions on a wireless device implementation. Please do not bid on this if you do not have working experience with this type of network! I will not pay if you do not have real experience! My application has a master base / router to send out ON and OFF commands to the end devices.Each end device needs to be individually separately controllable. The end device is battery powered and controls a light. There is no real data to send upstream, so one way may be an option. The tricky part ... it needs to support 500,000 devices under the same roof. The protocols I have reviewed thus far will not support this many devices. So I am looking for protocol suggestions and frequency bands. Again DO NOT respond if you do not have real, successful, hands on experience! Thank you PS this device does not have to communicate on or over the internet. Additional information: The network topologies is open. I am able to use wired or wireless re...
Category: Electrical       

r****ics
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| r****ics
|    United States
Fixed Price: Less than $500   |  Posted: Jul 26, 2015  |  Ends: 7d, 22h  |   11 Proposals
Hello, I am looking for additional ideas / approached on a LiPo charger circuit. Requirements: Schematic - can be hand drawn if very legible Single cell LiPo battery (100mah, with no secondary protection) +5V input voltage And the final, most difficult requirement... Total BOM cost of <$ 0.20 USD in volume. This will eliminate the typical LiPo single chip charger solutions. Probably will require discrete components. Additional information: Charging source is a USB port so figure 5V 100ma Over voltage charging protection is required. Deep discharge protection is required. There is a micro already available, so a digital I/O and ADC is available for intelligent control. That can be used to enable a series pass transistor, and ADC to monitor voltage. You would need to provide all scaling / and interface circuitry. Low bat indicator is desirable, can use micro ADC if needed.
Category: Electrical       

r****ics
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| r****ics
|    United States
Fixed Price: Not Sure   |  Posted: Jul 25, 2015  |  Ends: 7d, 5h  |   18 Proposals
We are seeking an engineer with previous expertise in KiCAD. We need a PCB converted into a SolidWorks 2014 readable file format. There are several ways to create this: 1: We send you a BOM and a PDF of the board. You model directly in SolidWorks. 2: You already know KiCAD and Wings3D. 3: You have your own method. I don't really care about the method. I just want an accurate 3D representation of our PCBA so we can hand it to our mechanical engineer and insert it into our mechanical assembly. I hope to hear from you soon!
Category: Electrical       

h****agi
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| h****agi
|    United States
Fixed Price: $500 - $1,000   |  Posted: Jul 24, 2015  |  Ends: 5d, 22h  |   8 Proposals
I ned someone to make a Bluetooth Dongle that is very smal , has good sound quality and is easy to use.
Category: Electrical       
Skills: Music, Electrical Engineering, Electronics       

A****org
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| A****org
|    Norway
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