Hi everyone, I am trying to connect a 4x20 LCD display to my Spark Core and cannot get it to work, no matter what I try. If I connect this LCD to Arduino it works perfectly fine. I did some Arduino projects before but I am new to the whole Particle thing (maybe that’s the issue) - I just found the…

@marcg , the IDE library lets you define the geometry also. Just change this line in the example: lcd = new LiquidCrystal_I2C(0x27, 16, 2); // Change 16,2 to 20,4

Connect 4x20 I2C LCD to Spark Core fails

Troubleshooting

BulldogLowell March 17, 2017, 2:30am 3

Spark Core...

I2C was a little bajiggity on that device.

more here

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Connect 4x20 I2C LCD to Spark Core fails

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