I need to connect several I2C sensors Arduino Mega

Using Arduino Project Guidance
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Good, we would greatly appreciate help me with my problem. The fact is that I want to connect multiple sensors I2C ports (SCL SDA). My question is when connected. Lei by some other side that must unite all SCL and SDA but pull up resistance. That's my question as will the scheme. Oh resistance is not necessary that I thought joining the SDA and SCL logically but where entraria resistance. Oh it is not necessary. It is that if or whether they should be connected to the positive with a resistor (my sensors are 3.3v)

I thank you in advance.

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Some I2C breakout boards include the pullups - the assumption being only beginners use the more expensive breakout boards. Check your boards schematic if you are using multiple boards and "disable, remove) all but the last terminating resistor pairs.

Every daisy-chained I2C sensor must have a unique address on a single I2C output channel.

If you have two of the same sensors with non-changable addresses, they must be on separate I2C channels and both chsnnels must have pull-up resistor pairs.

Do some Googling for additional details.

Ray