I plan to connect a sensor board, communicating over I2C and operating at 3.3 VDC, with a Teensy 3.6 via the SCL0 (pin 19) and SDA0 (pin 18) ports.

The only hookup documentation I have on that board shows the connection with an Arduino UNO board.

Since the I2C comm ports (SCL, SDA) for the UNO operate in the 5.5V range (per this documentation), these 2 connections with the sensor board require each a 330 ohm resistor.

From what I gather, the Teensy 3.6 operates at 3.3 VDC. So, I am assuming that the resistors are not required.

Appreciate feedback on whether the resistors are needed with the Teensy 3.6.