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Engineering & Manufacturing
Fixed Price: Not Sure   |  Posted: Aug 24, 2015  |  Ends: 10d, 18h  |   2 Proposals
I am looking for someone to produce code for a microcontroller which is to act as a node in a wireless mesh network. The network will be used only for the streaming of low quality audio of approximately 16kbps. The node would need to decode the incoming audio stream (opus codec) based upon a channel selection by the user. The preferred microcontroller would be the STM32F4129 or equivalent as the node would also have a touch screen interface. Programming of the HMI would be a separately costed job. No preferred RF chip has been selected yet. Further details are available on request.
Category: Electrical       
Skills: Electrical Engineering, Electronics       

Y****ber
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| Y****ber *
|    South Africa
Fixed Price: Not Sure   |  Posted: Aug 24, 2015  |  Ends: 10d, 17h  |   1 Proposal
I am looking fro someone to design and program an HMI for a wireless mesh network node. The node will have a 2.4" touch screen with an SPI interface. The user will be able to select either one of two fixed channels (Channel 1 and Channel 2) or a third 'Home' Channel which would be selected by the user from a list of available channels. The menu structure is envisiged to be something like as follows: Page 1: Button to Select either Channel 1, 2 or Home Channel. Page 2 (or popup): Ability to set a channel as the home channel or select a fourth channel for listening. Menu structure as: Menu Level 1 (Nine options) - Menu Level 2 (Max 50 options) - Menu Level 3 (Max 20 options) The names for each Menu level or Channel would need to be editable and updatable by a remote connection so this needs to be borne in mind when programming. The graphics do not need to be fancy and a simple, clean, user-friendly interface is preferred. The processor would need to be an Arm Corte...
Category: Electrical       
Skills: Electrical Engineering, Electronics       

Y****ber
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| Y****ber *
|    South Africa
Hourly Rate: $20 - $40 / hr   |  Duration: 1-2 weeks  |  Posted: Aug 16, 2015  |  Ends: 2d, 23h  |   16 Proposals
Hello, I need a working concept of a "pressure plate" type of object that wirelessly tells a computer whether there is something on top of it or not. I need info on how much this would cost to produce, I need the cost per unit to be as cheap as possible while still functioning. I will later need software that sends the information (whether there is something on top of the plate or not) to another application. Under an inch in height is high priority.
Category: Electrical       

s****nna
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| s****nna
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Aug 14, 2015  |  Ends: 21h, 31m  |   7 Proposals
I am looking to design and make a very compact rechargable EMS/muscle stimulator unit with 4 channels. It will form part of a product that i am working on. I want to make the control of the strength/frequency modes of the pulses wireless. I dont have any real tech info as of yet, as this is a very early stage idea so just putting the feelers out. similar products on the market are on a link below.   [obscured]  /en_UK/72534-FIT-1-0-154078.html
Category: Electrical       

m****iny
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| m****iny
|    United Kingdom
Fixed Price: $1,000 - $5,000   |  Posted: Aug 13, 2015  |  Ends: 11d, 0h  |   14 Proposals
I would like bids on designing the circuits, providing gerber files, writing code and providing a test article. This item will be FCC certified in the US and must meet all compliance requirements. This device will be based on the following CML chip while operating and approved only in the MURS bands to avoid FCC operator license requirements.   [obscured]  /products/CMX883_Baseband_Processor_for_FRS_MURS_PMR446_and_GMRS_Leisure_Radios/ I would like the bids to include the incorporation of a GPS chip with antenna and routines to locate the distance, bearing and position of another matching radio. I have identified the formula that will handle this. The screen should be four lines with OLED yellow display. There will be about 20 menu screens to set up groups, poll locations, text both ways, review old messages This will be a small qwerty keyboard similar to Blackberry. There will be no voice capability included. I need someone with strong radio design skills and a circui...
Category: Electrical       
Preferred Location: India/Southern Asia, Eastern Asia

R****777
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| R****777
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: Aug 09, 2015  |  Ends: 71d, 0h  |   5 Proposals
An important differential: The sensor will operate as (keychain/device) alarm for vehicles, in other words, each keychain has a unique identification. A keychain vehicle alarm does not trigger another car alarm. Features of this sensor: Through the computer in the security cabin, This sensor will trigger the opening and closing of garage gate. At the same time... The computer will open the window of the security camera, will emit a sound signal, will open a small window showing the registration of owner of vehicle that are entering or exiting the garage. Automation: The car owner who has this sensor-receiver... He will have two devices: A keychain and a device installed in the car (both sensors-receivers). In the security cabin... There will be a sensor - transmitter connected to the computer. And the computer, besides beeps (show the data of the owner/show gate camera)... the computer will also open/close the gate. Both to open and close the garage door; will be automatic... In othe...
Category: Electrical       
Skills: Electrical Engineering, Electronics       

c****uiz
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| c****uiz
|    Brazil
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