Circuit Design Jobs

172 were found based on your criteria

  • Hourly – 1 to 3 months – Less than 10 hrs/week – Posted
    I want to create an app for my smartphone, but I realize now that I need to create a very simple, small bluetooth 4.0 device first. I want it to be small and pocket sized, something that could easily fit on a key ring. It should have only a single button. It should have the ability to be tethered to a smartphone (both an Iphone or an Android) via bluetooth 4.0. When that button is pressed, it sends ...
  • Fixed-Price – Est. Budget: $1,500.00 Posted
    I would like a beaglebone black cape that provides the following: 24VAC/DC supply, RTC with battery or gold cap, RS485 isolated for modbus, 10 isolated digital triac outputs, 8 analog/digital inputs selectable with jumpers 0-10V, 0-20mA, NTC10k, digital IO, pulse counter/frequency. The module needs to be programed to be a modbus RTU and/or modbus TCP slave. Please also provide a general theory of operation. This needs to be designed to fit into a din rail mountable ...
  • Fixed-Price – Est. Budget: $50.00 Posted
    Hello I am looking for a Matlab developer who knows how to send a 8 digit number to the mobile phone and then make a call using built in Bluetooth function using Matlab? This feature has to be implemented into a project and that is why looking for help in getting it done. Also, please note that the code should work on Matlab2012b Please get the details at https://www.hightail.com/download/elNLak94ZEt6NE9xV2NUQw It has to be done in ...
  • Fixed-Price – Est. Budget: $1,000.00 Posted
    Need to develop a simple circuit which can store a 10 Digit Number like "98-11-28-79-81" in a permanent memory (ROM or FLASH) On pressing of a button, the 10 Digit number read from the memory and is converted to Binary and Frequency Shift Keying (FSK) is applied to generate an audio message. The base frequency being used for the FSK - is around 22 KHZ. This audio is played out aloud through a Ultrasonic Transmitter. The audio will have a preamble ...
  • Fixed-Price – Est. Budget: $100.00 Posted
    We require a development ("breakout") board for CSR BlueCore6-ROM chip. The PCB will be designed to expose all pins onto header(s) to facilitate programming and interfacing. The PCB will also include any required peripherals (osc/clock, USB-to-SPI programming/debugging interface, etc). Please have a good working knowledge of CSR's BlueCore6 products and programming interface. Deliverables: All design files, schematics, layout, BoM and gerber files. Engineer/designer will be responsible to oversee technical requirements for successful production of physical ...
  • Hourly – Less than 1 month – 10-30 hrs/week – Posted
    We are looking for an electrical engineering professional with a strong knowledge in printed circuit board design. Basically we are an "internet of things" company. We are trying to develop a circuit board with the following: -3-axis accelerometer -Parallax propeller chip -Apple compatible COTS Bluetooth module to communicate with iOS -Battery connection to power with 1-2 AA batteries (potentially rechargeable depending on the power consumption) -LED light (bar graph) to indicate bluetooth connectivity status -Mount points -Able to withstand about ...
  • Fixed-Price – Est. Budget: $100.00 Posted
    The system is concerned with the design and construction of a microcontroller based automatic gate. The microcontroller to be used is the Atmel AT89C52. It is to be programmed for the automatic opening and closing of the gate through infrared sensory actions. The microcontroller based system monitors and controls the opening and closing of a gate. It makes use of a microcontroller that accepts data value from an interfacing circuit and then makes an instant decision. When the system senses ...
  • Hourly – Less than 1 month – 10-30 hrs/week – Posted
    Hello Experts, I want to communicate with external hardware via my mobile application. Mobile application will be in android,IOS and windows and that I can develop but I dont have any knowledge of external hardware development and its communication. Basically I just want to blow LED with little vibration in external hardware via Mobile application. SO what I want to know from expert is 1) Cost wise Which is the best approach to communicating with external hardware via mobile ...
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