hi im using i2c to communicate or well tried but idk i keep like no error but only dont print nothing of the i2c im ussing the teensy as master
Welcome to the forum.
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It tells you how to post things and other things.
Your question is pratically incomprehensible as was your title before I turned into English for you.
Please post your code using code tags as illustrated in the link above.
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Use UART serial instead of I2C to communicate between MCUs.
I2C was designed for short range communications between chips on a single PCB.
Please provide a schematic and your code.
Take some good photos of your wiring.
Do you have pullup resistors on the I2C lines?