Hello, I Use 2 sparkfun DAC's (MCP4725). and drive the with testDACSpec.ino (1.5 KB) I have 2 of them on the Mega. I did not cut the pull up resistors on one of them since it seems to give problems only when using 3 or more. My problem is that the voltage on the output is not what I would expect.…

Wrong voltages with DAC MCP4725 driven by Mega250

blh64 October 11, 2021, 3:45pm 6

yes. it is the same chip using the same i2c protocol.

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