Hi everyone I need to know if resistor are needed on the Max30100 and what is the power that the Max30100 need.
Are you talking about the bare chip or is it on a module?
The chip itself takes 1V8 and 3V3.
Start with the schematic of a typical application circuit, on page 26 of:
Looks like 2V(confirmed in the table on page 2 ). No, don't try to just put a resistance in series with the device, that's not acceptable. You'll need a 3.3V supply for the LEDs, and a 2V regulator fed from 3.3V to feed the device itself.
HTH
thank
Thanks, don't usually work 'down in the noise'. But the answer is pretty much the same, use a regulator, not a resistor.
1V8 is pretty common these days but it's many times dealt with on-device and is transparent to the user. But yes, not a resistor. 
Do I need to put an 4.7K and a 10K exterior resistor with the SDA and SCL connected to 3.3V
You didn't answer the question in post #2.
well i want to know if a need exterior resistor for the max30100 and don't want to modifiy the max30100 itself because it worked for a short period of time
I'll rephrase the question. Did you build a circuit yourself or buy a prebuilt module? Either post a schematic of the circuit as it exists or post the model number of the module.
I bought a prebuild max30100 that I used in a simple circuit
here is an image from internet that is exactly my build
and here is the max30100 that I bought
It looks like the MAX30100 has 4K7 pull-ups to 1V8 on the SDA, SCL lines. That being the case you'll need to level shift its inputs from the Arduino.
I can't tell anything about your display except it is I2C. It probably has pull-ups on SDA, SCL but can't tell what they are pulled up to.
If you have decent schematics for both those modules post them. Also verify what model Arduino it is.
It's a shame the board designer didn't make the I2C pull-up voltage optional because it looks like the MAX30100 inputs are 5V tolerant. That would have made interface easier.
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