Resolved by Jeremie!
Dear Synthiam Crew and Friends,
its an old problem since the beginning of EZB.
The Ticking/ Clicking-Noise from the EZB and various speaker. you can hear the noise non stop. I dont mean a click noise at the beginnig or end of a sound!
If you turn off all sounds from the EZB-startup and network connection you can use 24 Servos and all sensors without a clicking or ticking noise in the speaker. but if you use the "EZB-Soundboard" or a Startup-Sound and one time the speaker you hear the clicking/ ticking noise the whole time. the noise is non stop.
So I want to ask for a code to get the "speaker status" from the beginning/ startup without any sound. sound conenction off. is it possible? so I can simple use the code after a sound to terminate the clicking or ticking noise from the energy.
I say "the energy", because the clicking changes if I use different batteries or an power unit. from fast to slow, noisy to soft.
cheers Smarty
Sound Amplifier amp datasheet: https://www.ti.com/lit/ds/symlink/lm4902.pdf
this is the amp pinout:
this is a typical application:As you can see the pin Shutdown is activated when a GND is applied to the sound amplifier Pin 1. So applying 0 shutdowns the amplifier, 1 (3.3v) OR floating (not connected) enables the amplifier.
@ptp
perfect. I will try it tomorrow :-)
Such an elegant solution.
So if I'm following you, you simply just run one wire from the bottom of R7 straight to any white signal pin of a digital port. Then to shut off the amp you run a script to turn off the connected digital port?
Thanks PTP. You've done it again!
Regarding the WIFI interference:
https://www.ispreview.co.uk/index.php/2015/04/10-top-tips-boosting-home-wi-fi-wireless-network-speeds.html
I believe this beacon signal in a short period generates/adds up the interference.Maybe is worth to try changing the EZB to client mode (if not already)
That's a smart solution to silence the amplifier @PTP, I like it!