I am just getting started out in the maker world. One of the things I am working on a putting an audio signal into my Arduino to build some reactive elements something along the lines of this: https://learn.adafruit.com/piccolo/ or this https://learn.adafruit.com/trinket-soun ... lor-organ/ but using an audio in (via a headphone jack) rather than the microphone with amplifier.
While I am trying to get my audio signal into something in the 0 - 5v range so that the Arduino can does something with it, I have no really way to check any of this. I currently have an op-amp to boost the signal, and then a second circuit adding a DC-offset, but without a scope I have no way to check how well these are working (or if they are at all).
I am using this insctructable to try to get the audio into the Arduino:
http://www.instructables.com/id/Arduino-Audio-Input/
Not really sure if there is a way to check these things other than a scope. Like I said, I am pretty new to all of this. Learning EE as I go.
Is the DSO Nano good enough for me?
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- adafruit_support_mike
- Posts: 67446
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Is the DSO Nano good enough for me?
You're right that it's pretty much necessary to check signals, and some kind of oscilloscope is the tool for the job.
I'd suggest the Saleae 4-channel logic/1-channel analog pod over the DSO Nano though:
https://www.adafruit.com/product/2312
The pod itself is a data collection unit, and sends ouptut to a computer for display and further processing. That gives you the advantage of nearly infinite waveform memory, and it's common to want to scroll back and forth along a signal to spot details. It also works as a 4-channel logic analyzer when you want to debug I2C or SPI connections.
Saleae is good about keeping the hardware and interface software updated, which to be honest is more than I can say for the DSO Nano. Most people replace the Nano's stock firmware with a third-party image from around 2013.
I'd suggest the Saleae 4-channel logic/1-channel analog pod over the DSO Nano though:
https://www.adafruit.com/product/2312
The pod itself is a data collection unit, and sends ouptut to a computer for display and further processing. That gives you the advantage of nearly infinite waveform memory, and it's common to want to scroll back and forth along a signal to spot details. It also works as a 4-channel logic analyzer when you want to debug I2C or SPI connections.
Saleae is good about keeping the hardware and interface software updated, which to be honest is more than I can say for the DSO Nano. Most people replace the Nano's stock firmware with a third-party image from around 2013.
Please be positive and constructive with your questions and comments.