I said already, that I plan to make a separate amplifier for the buzzer and the 10 inputs to it.
My biggest problem is how to wire it. That's it. Doesn't matter then, I will find a solution myself.
This sound thing is a distraction for both at this moment. I only put it in perspective.
At this moment I am playing with the transmitter and receiver boards. Im figure them out.
View attachment 64975
This is what I have.
I am not sure what is that DATA voltage. Im supplying them at 5V both on my breadboard. I put a led and 10k on the receiver DATA and when I touch with my finger the DATA from transmitter, the led turn on. Thats cool so far. Now I need a minimum and a maximum DATA voltages that I cant find anywhere. Hmmm. I assume is 5V. What you think?
Further: I put a 1M,then 100k ,then 10k between +5V and DATA and the led is only lit when the contact is made but it is immediately turned off. That suggest I need a variation on the DATA pin. Hmmm. That sucks a bit. To be able to mentain that led On all the time.