See attached note for information on the "mjkdz" board.
QuoteSee attached note for information on the "mjkdz" board.Isn't it clever how they have obscured the markings on the IC so that you can't determine the type of device and thus it's I2C address? You can determine that it is in the PCF8574 family from the pinout, but the PCF8574 and PCF8574A have the same pinout with different address ranges.Don
don't really know why.
Quotedon't really know why.When your life depends on it, you will know why.
8574 LCD---------------P0 RSP1 RWP2 ENP3 BacklightP4 D4P5 D5P6 D6P7 D7
#include <Wire.h> #include <LiquidCrystal_I2C.h> // addr, en,rw,rs,d4,d5,d6,d7,bl,blpolLiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Set the LCD I2C address
If anyone can offer any specific suggestions I would really appreciate it...
I don't think I'm going to be able to get my lcd working. I did find an I2C Scanner that worked just fine and returned the address 0x27.
I did find an I2C Scanner that worked just fine and returned the address 0x27.