In Progress

High-pitch tone transmitter + receiving app code

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.

Skills: Electrical Engineering, Mobile App Development, Product Design

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About the Employer:
( 0 reviews ) Brazil

Project ID: #4311065

Awarded to:

carelle

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!

$1250 USD in 35 days
(30 Reviews)
6.1

4 freelancers are bidding on average $1388 for this job

WangJin

Please check PMB!

$1500 USD in 10 days
(29 Reviews)
7.2
MikroStar

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.

$1800 USD in 30 days
(36 Reviews)
6.0
betaenergy

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 ha More

$1400 USD in 25 days
(11 Reviews)
4.8
DrFreelancer2012

Hi there, I have a PhD (doctorate degree) with an academic position.

$2000 USD in 21 days
(7 Reviews)
3.8
getveltrod

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 te More

$1300 USD in 25 days
(3 Reviews)
0.5
koperclint

Client, Please have a look on private message board for our experience, portfolio, skill and other thing. Thanks

$750 USD in 5 days
(0 Reviews)
0.0
nomadsack

Ph.D. in Electronics and Communications, please read PMB for more details.

$1200 USD in 20 days
(0 Reviews)
0.0