Analog Electronics, 555 timer as VCO and a board
$30-250 USD
Paid on delivery
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
Project ID: #4140388
About the project
Awarded to:
15 freelancers are bidding on average $103 for this job
Hi, i need to know followings. 1. what frequency VCO will produce? 2. amplitude of output signal of VCO? 3. Duty cycles?
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
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.