Gravity: 2-Channel I2C DAC Module (0-10V) - Can not change value after .store()

Hi,

I use the “Gravity: 2-Channel I2C DAC Module (0-10V)” and I think there is a bug in the library “DFRobot_GP8403.cpp”.

When I use dac.store() I can not change to a new output value.

dac.setDACOutVoltage(5000, 0);

delay(1000);
dac.store();

delay(1000);

dac.setDACOutVoltage(8000, 0);

With dac.store() the output voltage will never be 8V.

Without dac.store() the output voltage is 5V for 2 seconds and then it is 8V.

Thank you for any help.

BR,

Frank