I am planning a circuit that requires two-way communication between one esp32 and 3 others. I want to use a master/slave architecture as shown here:
They need to be able to communicated via hardware, not wirelessly!
Is this possible using the following circuit? (in this circuit, the CLK pins are serial clock pins and the SD pins are serial data pins, i plan to use i2c (which may also need the arduinos to have a common ground...))
Any solutions/ideas are appreciated