Adrian, thank you very much for the technically competent answer!
The I2C 15-CM wires of the display setting were mpd_oled -o 4 -b 32 -g 1 -f 20,
bus speed dtparam = i2c_arm_baudrate = 800000
Changed the setting to mpd_oled -o 4 -b 32 -g 1 -f 15, dtparam = i2c_arm_baudrate = 400000 until I watched from the surface of the line for an hour!
Didn't change wires, changed only F and i2c speed
After 1.5 hours, the line moved down. speed settings don't help.
Thanks a lot Adrian!
The I2C 15-CM wires of the display setting were mpd_oled -o 4 -b 32 -g 1 -f 20,
bus speed dtparam = i2c_arm_baudrate = 800000
Changed the setting to mpd_oled -o 4 -b 32 -g 1 -f 15, dtparam = i2c_arm_baudrate = 400000 until I watched from the surface of the line for an hour!
Didn't change wires, changed only F and i2c speed
After 1.5 hours, the line moved down. speed settings don't help.
Thanks a lot Adrian!