Internal pull-up resistors are insufficient for I2C
Simple Embedded Solutions: I2C Communication Pull up resistor calculation with LTspice Simulation:
When Do I Need to Add Pullup Resistors to Improve I2C Bus Tolerance? - Total Phase
I2C Pull-up Resistors - Collin's Lab Notes #adafruit #collinslabnotes - YouTube
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I2C & Pull-up Resistors - Networking, Protocols, and Devices - Arduino Forum
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PCA9548A: Master and Slave side I2C line total pull-up resistor calculation when channel x is selected - Interface forum - Interface - TI E2E support forums
Pull Up Resistors | Working with I2C Devices | Adafruit Learning System
I2C Communication Protocol | mbedded.ninja
I2C bus pull-up resistor sizing, is 3mA min or max ?_? : r/AskElectronics
I2C Multiple devices Pull Up resistor - Networking, Protocols, and Devices - Arduino Forum
arduino - I2C pull-up resistors and voltage - Electrical Engineering Stack Exchange
Sketch to Measure and Calculate I2C Pull-ups (with Pictures) - Instructables
pullup - How many pull up resistors per I2C bus - Electrical Engineering Stack Exchange
Software I2C pull up for pyboard D? - MicroPython Forum (Archive)
Constant Current Pullup
I2C Components with pull up resistors | Download Scientific Diagram
