I can’t find anything that says it has a line or headset output. Only an input. I’ll keep looking.
tom321 - why does your plot look so different from mine? Yours is obviously correct - mine just looks stupid in comparison.
Can you share a pic of your circuit?
Connect R2, R3, C2 only to A0 and touch A0 by finger/wire and show the plotter
without touching A0 ?
Have you used that thing with anything else? Are you sure analog audio is coming out?
Instead of using that, I recommend trying the headphone output from your phone (if it has one) or your computer to the Arduino circuit. Or the analog RCA outputs from a DVD/CD player, or from your TV, etc. Something where you're pretty sure there is analog audio coming out.
When I Google Anker Soundsync A3352, sometimes it's called a transmitter and sometimes it's called a receiver. I found a review which says it's a transmitter. ...Analog goes in and it sends Bluetooth to your Bluetooth speakers/headphones, etc.
You can plug the Anker Soundsync A3352 into powered computer speakers, or your stereo, or even your TV if it has analog inputs to check if there is an audio signal coming out.
Yes, I've used this as a sound source on a similar project last year that utilized the MSGEQ7. It worked well on that project.
I also just tested it on a mini amp with outdoor speakers last week. Its in good working order.
change A0 to A1 do not connect anything to A1
// readValue = analogRead(A0);
readValue = analogRead(A1)
not bad,
- connect C2 to A1 - serial plotter ?
- add R2 to it - serial plotter ?
Hmmm... I'm not following. How do I connect C2 to A1?
Do you want me to connect the wire from the junction of R2 & R3 to pin A1?
If I do that I get this:
one capacitor wire to ground second one to A1.
no
just step by step to localise bad wire connection
good, now touch A1 on/off by finger
R2 and C2 ?
Not sure what you mean by this. I've connect one lead to R2 and second lead to Pin A1 and finger pinched the ends of the first and second leads together with my fingers. This is what I get:
I repeated this with C2 and I get the following:
I didn't attempt to do C2 and R2 at the same time. Do I do this in series or parallel?
I'm using the pro mini - 5V.
OK, here's C2 and R2 in Parallel - direct connection - no finger.
And here's C2 and R2 in Parallel - finger connection.
good, your plotter is ok it is different because the scale on the X axis is 10 times smaller than mine and the graph is moving to fast, try to add delay 50 or 100 on the end of the loop
void loop() {
Voltage = getVPP();
Serial.print( Voltage);
Serial.println(" Amps RMS");
delay.(50);
}
