Analog Electronics, 555 timer as VCO and a board

In Progress

Hi,

We want to make a simple device. It's a sensor connected to a 555 timer acting as a VCO. There is also a simple NPN transistor which is sometimes turned on. The whole device is operated using usb power from a cell phone and the audio input/output of the cellphone. The audio turns the NPN transistor on. The audio records the output of the 555 timer.

We also need a board designed.

It should take less than a week to complete the project. We will discuss it in more detail if you have a nice bid.

-Brian

Skills: Electrical Engineering, PCB Layout

See more: 555 timer vco, analog timer board, 555 vco, vco 555 project, electrical and electronics engineering, 555 timer board, timer, timer board, pcb board, electrical power, electrical layout, electrical and, board layout , pcb layout 555, electrical pcb, cell power, power cell, simple device electronics, pcb sensor, usb device power, simple pcb layout project, pcb timer, project pcb, pcb usb audio, analog output project

Project ID: #4140388

Awarded to:

MIKY4227

Hi is easy see portfolio for samples

$50 USD in 1 day
(15 Reviews)
4.9

17 freelancers are bidding on average $99 for this job

MikroStar

hi, i can help.

$200 USD in 5 days
(36 Reviews)
5.9
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

$220 USD in 5 days
(9 Reviews)
4.6
Davelelievre

Hi Brian I believe I can help you with your project

$100 USD in 5 days
(3 Reviews)
4.3
technofreakz

I have experience in designing PCB with CadSoft Eagle.

$70 USD in 5 days
(1 Review)
3.3
pcbdcs

Hello, I can do this.

$90 USD in 7 days
(10 Reviews)
3.3
AliMushtaq12

Hi! I can provide my expertise for your project. Please check Pm for details.

$75 USD in 4 days
(2 Reviews)
3.0
SanducAndrei

Hi, do you need a profesional help?

$60 USD in 3 days
(5 Reviews)
2.9
ExpressElectro

Hello sir. I have master degree in electronic, and this is pretty basic project. I can fully finish you'r project for several hours. I offer you cheap and reliable design, and i guarantee you for quality of design. More

$60 USD in 1 day
(4 Reviews)
2.8
aki542

Hi,I can help u.

$70 USD in 7 days
(2 Reviews)
1.8
shahbaz1980

Hi, i need to know followings. 1. what frequency VCO will produce? 2. amplitude of output signal of VCO? 3. Duty cycles?

$30 USD in 2 days
(1 Review)
1.0
uetian2013

It's pretty good project i am also looking for this kind of project. I have very strong grip on power electronics device. i can do that. For further satisfaction check my profile.

$170 USD in 6 days
(0 Reviews)
0.0
jithu0043

I can Do it sir

$75 USD in 7 days
(0 Reviews)
0.0
nevorek

Simple task

$50 USD in 0 days
(0 Reviews)
0.0
tryitout

This project shouldn't even take a week. I have all the parts laying around, I can put it breadboard and give you a video showing it working and then proceed to a PCB layout using eagle. It's sad how many engineering g More

$130 USD in 6 days
(0 Reviews)
0.0
parmarjp

I can help you with this project.

$250 USD in 15 days
(0 Reviews)
0.0
FlyingPigeon

You will get best results!

$100 USD in 15 days
(0 Reviews)
0.0
isuruathukorala

Dear Sir, I can do this for you.

$75 USD in 5 days
(0 Reviews)
0.0
beautifulangels

hi i am electronic engineer and expert at analogue electronics i can help you

$100 USD in 7 days
(1 Review)
0.0