Hi!
Wenn wir schon über analogRead reden bietet das die Möglichkeit über einen Pin mehrere Taster einzulesen. Die Tasten greifen von einem mehrstufigen Spannungsteiler über Taster die Spannung ab. So kann man die jeweils niedrigste Taste lesen. Auch hier muß der Eingang mit einem Widerstand der zumindest *10 größer ist als die Spannungsteilerkette auf ein definiertes Signal geführt werden um ein Floaten zu verhindern.
-AH-

Folks!

I found out that on the tone() reference page (http://arduino.cc/en/Reference/Tone) there is a misleading advice. it currently explains: Use of the tone() function will interfere with PWM output on pins 3 and 11 (on boards other than the Mega). On my Leonardo analogWrite works fine in pin3. tone() causes troubles with pin5!!!

rgds
-AH-

Folks!
Thanks for the advice I was sure it will turn out as a layer 8 issue! I've checked the tone() page several times but I have overseen the hint "Use of the tone() function will interfere with PWM output on pins 3 and 11 (on boards other than the Mega). "

On my Leonardo the interference of the tone function is not on pin 3 but on pin 5. It took me some more time to verify each analog output line to find this out. I x-checked that with 3 Leonardos.

How can we feed back this info to update the reference page for tone()?
-AH-

Folks!
I'm using analogWrite to drive LEDs via power FETs. To improve theuser interface I want to confirm key strokes with short beeps. Currently I use 4 analog outputs - all fine. As soon as I engage a tone() command one of the analog outputs dies. I guess I'm hitting a limit on Interrupts or so but as far as I was able to find resources I do not expect that.
I'm using a leonardo board.

Any ideas or pointers where I could find information to a solution?
tks
-AH-