Hello, I’ve been struggling for weeks trying to make the classic LCD 16x2 I2C PCF8574 work with the BBB. Tried python code and C/C++ code from different sources, none of them worked, all I get is the screen’s light blinking whenever a command is sent. I am currently using the LiquidCrystal_I2C_h library form Adafruit.
I can see the device with the address 0x27 when I i2c detect.
Can anyone help please.