Just got to working on the water delivery system controller. I will be using a UNO I received in my starter kit. Works fine but am choking on trying to send data to LCD display. The library examples I have viewed so far seem to be using a parallel output. My display comes with a serial adapter. The …

Writing to LCD (20x4) with SDA & SCL

van_der_decken September 14, 2025, 10:07pm 3

UART, SPI or I2C? I'd bet on the latter.

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