Heya boffins! Well, got an LCD wired to an Arduino Leonardo via a cheapo LCM1602 I2C backpack that I snagged from fleabay. Searched for and found the following tutorial here, which I followed to the letter: http://forum.arduino.cc/index.php/topic,128635.0.html The scanner finds the device at 0x20,…

16x2 LCD with Leonardo via "LCM1602" - no characters

Trixi May 7, 2014, 8:03am 2

Do you use a poti for contrast ?

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