Arduino UNO hangs while trying to run GY-302 and BME280 on same I2C bus

[cyber-k]

Sorry guys, I just found the answer to my query in another post:

using 5v logic with 3.3v devices

As I'm new to Arduino,I was wondering if there is any good reason why, when connecting the output from arduino @ 5v logic level, to 3.3v level devices I could not just use a resistor potential divider (say 3.3k in series with a 6.8k, Nearest preferred values ( 6.8k to neg.)) from the output pin to neg. and take the feed out across the 6.8k resistor? This would save using level shifting IC's, etc. Ive seen some designs where there is just a resistor in series with the output pin, but when it is …

Need to read before! apolgies!