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Electrical Engineering Jobs

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Fixed-Price - Est. Budget: $ 250 Posted
I have a project that could use some professional expertise. I'm using the nrf51 (nrf51822) development board and have built a simple bluetooth app that sends the four buttons to a characteristics through notifications. I want somebody experienced with the nrf51 to go over my code and help me fix these four bugs: - the app will freeze at startup and the buttons do not register in the RTT log - pstorage is not being written to correctly - peripheral is not connecting to server when in slow advertisement mode (fast advertisement mode works fine) - ensure minimal current consumption The app is written and mostly works, I just need a professional to come in and verify that I'm doing everything correctly. Thanks! Sam

Fixed-Price - Est. Budget: $ 15 Posted
Hello, Please visit these 2 URLs. 1) http://www.instructables.com/id/ARDUINO-ENERGY-METER/ 2) http://www.homemade-circuits.com/2013/03/simple-dc-ups-circuit-for-modemrouter.html Your job is to mix these 2 circuits. Changes you have to make: For link 1: use arduino nano instead of arduino uno. I dont want to use ethernet shield. All the values have to be put in csv file and sent through usb port to computer. For link 2: You need to optimize this circuit to 12V/5amp DC from solar panel input(controller will be present). Now the arduino nano present in link 1 have to measure the voltage,amp and wh for link 2 circuit: i) electricity used to charge the battery ii) electricity supply in case of power failure from mains (No solar input) iii) electricity supply directly to modem (from solar controller to modem) The link 1 meter should send the values of these 3 cases in every 1 sec. You need to send me all the required parts (in detail with the part number), arduino...

Fixed-Price - Est. Budget: $ 300 Posted
I am looking for some experienced freelancers for Electrical Panel SLD and schematic diagram, There will have about 30 pages in each projects including SLD, Incoming and and outgoing CB control circuit and some motor Y-D, DOL starter wiring diagram. It could be either Autocad electrical or Eplan. Looks details in http://edesigntek.byethost4.com

Fixed-Price - Est. Budget: $ 500 Posted
Hi, We are looking for an experienced electronic engineer with experience in the medical electronics field to help us develop an EEG/ECG/EKG add on board for popular micro-computers. We also have future projects for the right engineer. Please only apply if you have experience with medical device design. Thanks

Fixed-Price - Est. Budget: $ 2,000 Posted
You have to make Bluetooth Smart Card Reader, PCB scheme OR device itself. Smart Card Reader MUST communicate by BLUETOOTH. Reader will serve transaction for game centre. Preferred microcontroller with smart card interface and bluetooth chip. Than simpler than better. Please bid if you have some experience with it.

Fixed-Price - Est. Budget: $ 150 Posted
Needs a full detail proposal for electrical generation from the following sources 1. From farm animal excrement. (poultry, pig, sheep and cattle) 2. from human waste(sewer) 3. from refuse dumps 4.from used plastic bottles, nylon and and other plastic wastes. Full details on what equipments and materials needed,where to source the equipments needed, full cost of the equipments. where it has been done succesfully and how it was achieved generate electricity from the materials mentioned.

Fixed-Price - Est. Budget: $ 400 Posted
Dear All ; We are trying to build up a SF6 arc model , 252kv Circuit breaker using FEM ( Finite Element method) . the model includes : 1) turbulent flow 2) Heat transfer 3) SF6 Plasma Reactions 4) Electric potential COMSOL Multiphysics is preferred, the Geometry of the model will be given after agreement. The purpose of the study is to investigate the SF6 arc dynamic behavior and the arc decaying.