This is labeled LCM1602-IIC. The address and the sample code are, not surprisingly, wrong. The address of the one that I am using is 0x20, not 0x27, and you do have to set up the pins in order. My Arduino Serial board has its SCL on A0, and its SDA on A1. I traced the connections using an ohmmeter…

How to use this PCF8574 board from "emall-4u"

TomKi January 31, 2013, 3:10pm 4

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