Hello i have designed a modular shield like value that uses the i2c buss of the raspberry but i do not know what resistor value for the pull ups to use. most guides tells us to use a safe 4.7k resistor but upon adding more of this modular device that 4.7k ohms will go down because of parelling resistors.
The theoretical max is 32 modular i2c devices before the power supply of the pi cant handle any furthur. When all 32 is placed, the resistance will go down to 146 ohms which is very low. But the value should also work with only 1 device is placed. because of that i cant set the value to high either.