GPIO (and therefor I2C) cannot be used at 5v. You will need to use a level shifter on the I2C lines if you want to run the board at 5v. Connections on Raspberry Pi Pico board, other boards may vary.
Display capacity is 16 × 2 characters; The working voltage of the chip is 4.5 ～ 5.5V; Working current is 2.0mA (5.0V); The best working voltage of the module is 5.0V; Character size is 2.95 × 4.35 (W ...
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