Here’s the LCD I’ve started with for my data display.
After working on the 12-wire configuration for a while, and never figuring out how to shield the noise that was goofing up the letters, I found an example with the I2C configuration.
Check out this write-up/walk-through for finding your device’s address and correctly initializing the LCD. This post saved hours, possibly days, of my life.
Here’s the I2c scanner that you’ll need.