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Design a simple RF circuit

$250-750 USD

Cancelado
Publicado hace casi 7 años

$250-750 USD

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Design a simple RF circuit that will detect the presence of a cell phone. 1.0 Specifications 1.1 Cellular Technology - any cell phone (voice, text, or data) currently in use in the USA. 1.2 Range - maximum distance from cell phone shall be 10 feet (line-of-sight). 1.3 Detection rate - The detector shall detect the cell phone within 5 seconds of powering on the cell phone when it is in-range or 5 seconds of coming into range when the cell phone is already powered on. 1.4 Output - There shall be an on-board, low power LED (red) that shall be off when there are no cell phones detected and on when a cell phone is detected.  The LED shall remain on for a minimum of 5 seconds when a cell phone has been detected. 1.5 Power - the detector shall be powered from 3 VDC and shall consume a minimum of power 2.0 Deliverables 2.1 Schematic diagram (in any form) 2.2 Bill of Materials (in any form) 2.3 Working prototype 2.4 Circuit description 3.0 Design Criteria (in order of importance) 3.1 Ability to reliably detect cell phone 3.2 Low power (the power consumed by any circuitry used to stretch the on-time of the LED shall not be considered for this criteria). 3.2 Small physical size (this does not need to be demonstrated on the prototype)
ID del proyecto: 14051177

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9 propuestas
Proyecto remoto
Activo hace 7 años

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This is only a slight modification to other rf devices I already have in my "arsenal". You can message me about any specific/more advanced features you would like implemented.
$400 USD en 10 días
0,0 (0 comentarios)
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0,0
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Good evening, I'm a telecommunications engineer, I have experience in the area, and development of electronic circuits with these functions with different software for modeling and testing of RF circuits. I'm sure I can be of help, if you need anything let me know. Best Regards, Samuel G
$360 USD en 15 días
3,9 (3 comentarios)
3,0
3,0
9 freelancers están ofertando un promedio de $360 USD por este trabajo
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Hello I am an Electronics and communication engineer and I am interested in your project. I have lots of experience in the circuit design. contact me over chat for more details.
$250 USD en 5 días
5,0 (11 comentarios)
4,0
4,0
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Hello, We are a team of embedded hardware and software professionals with experience in circuit design, schematic entry and PCB layout. Would like to know more about the project. Looking forward to work on this project. Please feel free to contact us for any further discussions. Thanks and Regards Techoviz
$400 USD en 10 días
0,0 (1 comentario)
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Hi! I am an engineer from Ukraine with over 5 years experience in electronics design and electrical engineering and near two years in web development. During 5 years of working for Efes-Electronics LLC I have been participating in and studying full cycle of electronic components and parts production, took active part in the design and installation of hardware and software process automation and control systems based on industrial PLC's. I was developing my own hardware platforms for the needs of Ukrainian industrial enterprises like Zaporizhstal, Azovstal etc. I also participated in the development of auxiliary electronics for Daewoo passenger cars. You can find examples of my works in my portfolio. Feel free to contact me for any additional information about my experience. I'm interested to work on promising turn-key projects combining both hardware and software development for end-customer market or for commercial and industrial applications. Kind regards, Eduard.
$444 USD en 10 días
0,0 (0 comentarios)
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Bandera de UNITED STATES
New Port Richey, United States
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Miembro desde may 16, 2017

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