Circuit design to input voltages into phone headphone jack

Ditutup Dipasang Apr 4, 2014 Dibayar saat pengiriman
Ditutup Dibayar saat pengiriman

We need someone to design the electronic circuit to take the voltage values output from a piezoelectric sensor and input them through a phone's headphone jack. The signal into the phone needs to be in a form that an app on the phone can read and understand. In addition, any power the circuit needs should be drawn from the headphone jack of the phone. We will need this design to be made into a PCB layout as well.

Desain Sirkuit Teknik Elektro Elektronika Tata Letak PCB

ID Proyek: #5763440

Tentang proyek

21 proposal Proyek online Aktif May 11, 2014

21 freelancer rata-rata menawar $949 untuk pekerjaan ini

MikroStar

hi, i am an electrical engineer. i have expertise in embedded system design.i can help you with this project. Please check my profile for my previous work experiences. let me know if you are interested in the bid so Lebih banyak

$3500 USD dalam 45 hari
(54 Ulasan)
6.8
tkousar

Hi, I am an Electrical Engineer practicing for last 6 years in an R&D Organization. I have designed a number of products ranging from RF & Microwave circuits to digital circuits. i have experience in designing filte Lebih banyak

$1000 USD dalam 20 hari
(24 Ulasan)
5.5
Davelelievre

Hi, my idea would be to take the piezoelectric sensor signal and convert that into a 1KHz sine wave (approx). This sine wave would then vary in amplitude in direct proportion to the strength of the sensor signal ( but Lebih banyak

$555 USD dalam 5 hari
(9 Ulasan)
5.3
StefanP

Hi, My name is Stefan, and I work at a company as a power electronics application engineer. I appreciate communication when working as a freelancer, and I want to assure you that I will respond to your questions / Lebih banyak

$900 USD dalam 10 hari
(9 Ulasan)
4.7
cpp2048

It seems to be an interesting project because it will involve some R&D work. Some amplification factor is needed in order to lift the voltage level of the signal from piezo sensor so that the phone can read the values Lebih banyak

$899 USD dalam 30 hari
(11 Ulasan)
4.4
k03ak

Hi! We can do this project. Can you give us more information about your piezoelectric sensor (pdf)? If you interested please contact us. Best regards, Aleksandr.

$722 USD dalam 10 hari
(4 Ulasan)
4.3
delamoure

Dear Sir. I can design such a device to you. As a result you will get: 1) schematic in the Altium and PDF formats; 2) pcb in the Altium format; 3) pcb in the Germer format (ready for production) 4) Bill of materi Lebih banyak

$700 USD dalam 15 hari
(3 Ulasan)
4.2
slavaten

Hi, I read your interesting bid. I have done two projects using audio Android smartphone for input-output. The project also included the creation schematic and PCB. I am an expert in the field of piezoelectric sensors Lebih banyak

$700 USD dalam 15 hari
(5 Ulasan)
3.9
kursadgulereem

hi... i can design your circuit easily on Altium Designer, PCB file,schematic file. plz can you say me your phone model and which program do you use.. thanks..

$500 USD dalam 14 hari
(7 Ulasan)
3.4
Pankaj09bec027

Hello, I am electronics engineer working with multinational Company. I am having 3 Years of work experience with wireless sensor network, Telecom Networks, Video camera etc. I am expertise on orcad 16.3 for schemati Lebih banyak

$999 USD dalam 30 hari
(0 Ulasan)
0.0
FigST

Hi, what you yourself feel happy to pay ? you tell me. i just want to work. I will take what you will be happy to pay. Dont fear, this xxx $ is just a filling of position. I can design many circuits. but here i Lebih banyak

$694 USD dalam 10 hari
(0 Ulasan)
0.0
chyconsl

HI, I have done similar projects in the past. I will like to use my experience to serve you better. You can trust my sincere indulgence both in quality and time frame. If you will give me a chance, I will ensure that y Lebih banyak

$555 USD dalam 10 hari
(0 Ulasan)
0.0
daleshot

Hi there. My name is Dale and I am based in Melbourne Australia. I assume when you say input via headphone jack you mean a headphone jack that also has a microphone input such as on an iPhone yes? I have over 15 Lebih banyak

$1666 USD dalam 10 hari
(0 Ulasan)
0.0
petergabrielsson

Greetings I'm senior EE with over a decade experience in the electronics industry. I was intrigued by your project and the challenges it presents, It seems like a fun little project to work on. The interesting Lebih banyak

$1000 USD dalam 10 hari
(0 Ulasan)
0.0
kamranayub

I had been working on Piezoelectric sensors. It will be an easy project for me. If u need to see my work before hiring me let me know.I had been working with this sort of stuff. It will be an easy project for me. For Lebih banyak

$250 USD dalam 7 hari
(0 Ulasan)
0.0
magdycz55

I have a great and long experience in electronics (almost 35 years) including designing analogue and digital circuitry, programming in C AVR and PIC micro-controllers, simulating electronic circuits with simulating pro Lebih banyak

$500 USD dalam 10 hari
(0 Ulasan)
0.0
idevasia

Hi, We would like to work with you. The following is our brief introduction. If you have any questions, please let us know. A team of professionals in Hong Kong with more than 10 years of experience in embedded s Lebih banyak

$1666 USD dalam 30 hari
(0 Ulasan)
0.0
sahay108

Hi wpost123 I went through your requirements, and I am confident that I can achieve the requirements with in your budget and schedule. I would love to work for your project. I am a professional product designer and Lebih banyak

$986 USD dalam 30 hari
(0 Ulasan)
0.0
tsvetko

A proposal has not yet been provided

$250 USD dalam 10 hari
(0 Ulasan)
0.0
basilboli

Hi! I have background in circuit design and microcontroller programming and I can deliver this project on time. I have a mini lab at home, with all necessary equipment for circuit prototyping and verification(solderin Lebih banyak

$333 USD dalam 30 hari
(0 Ulasan)
0.0