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High-pitch tone transmitter + receiving app code

$750-1500 USD

Em Andamento
Publicado há aproximadamente 11 anos

$750-1500 USD

Pago na entrega
What I need is a piece of hardware transmitting a constant high pitch tone not hear able to humans that send info. This sound would have to trigger an app or be detected when the app is opened. The device would have to be able to be plugged into the wall socket. You should be able to change the tone when connected to a computer. Make the transmitter as simple as possible and with common parts. This to ensure flexibility to possible mass production. Something alone the lines of shopkick and sonic notify. -provide full documentation of both hardware and software. Please only serious people.
ID do Projeto: 4311065

Sobre o projeto

4 propostas
Projeto remoto
Ativo há 11 anos

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Hello! I've Ph.D. in Electronic Engineering and BSc in Physics. I work with Analog Electronics and PCB design. I can do what you need with quality and reliability!
$1.250 USD em 35 dias
4,9 (30 avaliações)
6,1
6,1
4 freelancers estão ofertando em média $1.388 USD for esse trabalho
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Please check PMB!
$1.500 USD em 10 dias
4,8 (29 avaliações)
7,2
7,2
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hi, i am an electrical engineer and an embedded system developer. i can help you with this project. i will provide you all design files, schematics and PCB layout. also i will provide you the working prototype.
$1.800 USD em 30 dias
4,9 (36 avaliações)
6,0
6,0
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Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reader and transmitter -Magnetic reader Power Electronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy simulations -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design Embedded system -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas Matlab -Power Electronics simulation -Motor drive -Wind Energy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation(TI,National, Linear Tech, Maxim libraries) -LTI -National -Matlab Very important Note: References attached. Please look excel file to see projects which we made until now! Metin
$1.400 USD em 25 dias
4,7 (11 avaliações)
4,8
4,8
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Hi there, I have a PhD (doctorate degree) with an academic position.
$2.000 USD em 21 dias
4,5 (7 avaliações)
3,8
3,8
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Hi, Veltrod Software services is a global software consulting company specialized in providing Mobile applications, Social media frameworks and eCommerce solutions. Leveraging best-in-class people, processes, and technologies, Veltrod provides high-quality software development and BPO services to independent software vendors and enterprises. We are specialized in developing Mobile applications, Search Engine optimizations, Social Network frameworks, Software Testing and ERP applications. We are pleased to take care of this project, if it is offered to us. We assure that we will work towards 100% client satisfaction. Thanks Vinoth
$1.300 USD em 25 dias
5,0 (3 avaliações)
0,5
0,5
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Client, Please have a look on private message board for our experience, portfolio, skill and other thing. Thanks
$750 USD em 5 dias
0,0 (0 avaliações)
0,0
0,0
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Ph.D. in Electronics and Communications, please read PMB for more details.
$1.200 USD em 20 dias
0,0 (0 avaliações)
0,0
0,0

Sobre o cliente

Bandeira do(a) BRAZIL
Brazil
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Membro desde mar. 7, 2013

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