Robu - India's Innovative Electronics Community

Pr4tham wrote: ↑Wed Feb 05, 2025 6:08 pm Hi.
those are very long wires for I2C. Generally I2C doesn't work great with high capacitances. What are the pullup resistor values for I2C being used here?

I am using 5k pull ups on both ends (two 10k resistors in parallel)

I have recently completed a smart aquarium project. The whole system is controlled through a rotary encoder and 1.3 inch OLED display. I realized later into its development that it is not suggested to use long cables to connect i2c devices. I have a custom 2 meter i2c cable which I have made but it ...

Can you please share your wiring diagrams so we can theorize potential issues?