New I2C LCD not detected.

eokerson New Member Posts: 2

We are currently using the DFR0063 in a product with an UpBoard model UP-CHT01-A20-0432-A11 as the controller, but want to switch to the DFR0555. When we plug in the DFR0555 the i2c bus slows way down. It takes almost 2 minutes to scan the bus with i2cdetect and it does not detect the LCD. It works fine with the DFR0063. Both LCD's are detected fine on a RaspberryPi 4. Any suggestions?