This is my first Arduino project so I’m thinking I may be missing a “big picture” item here. I have an Uno R3, DS3234 Realtime Clock board and a 1602 LCD display up and running. The clock chip successfully writes time and date data to the Arduino serial monitor using the DS3234_Example_Code sketch. I can put lcd.print() statements at the beginning of setup and they successfully get written to the lcd display. But once the loop gets going, lcd.print() statements do not work. Random characters are output to the display. If I disable the RTC_init function I can write text to the display from the loop. Is there some incompatablity between the clock chip and lcd display that I don’t understand?
DS3234_Example_Code.ino (2.58 KB)