Forum >Gravity: 2-Channel I2C DAC Module (0-10V) - Can not change value after .store()
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
2023-07-22 03:51:10
Frank.Rackelmann
Thanks for your fast response.
Is there a similar product like this one, but maybe cheaper, smaller and only pins for input and output?
I only need 1 channel, Vcc is 3,3V and output voltage must be 0V - min. 8V.

2023-07-22 02:58:01
jenna
Hi!
pls try this library. We’ve just updated it.
https://github.com/DFRobot/DFRobot_GP8XXX
