I intend to power three ATTiny45 chips (each requiring around 3.5V) in parallel with 2 pill batteries (namely Maxwell's CR2032) in series (which would come to around 6V). They will each play a sound with a piezo buzzer when a button is pressed.
Now maybe my thinking is wrong but I think dividing the power between the three chips may result in only around 2V delivered to each chip? Does the other components play a role?
So my question is this:
- How much voltage is delivered across elements in parallel?
- What changes should I do to the wiring to make the most of the voltage?
- What kind of resources should I get to make sense of what to do? Cause I thought I was more advanced but this stomped me.
In any case I've added the schematic of what's intended.
[This schematic used to contain resistors to pull the switch but this need was removed with the help of jsotola's