How to connect 4 pin LCD?
i have lcd gnd, vcc, sda , scl. have arduino uno. i've been trying wire lcd board , have display "hello world" message.
i had gnd connected gnd on uno
the vcc connected 5v
the sda connected a5
the scl connected a4
any help? thanks!!
i had gnd connected gnd on uno
the vcc connected 5v
the sda connected a5
the scl connected a4
any help? thanks!!
scl a5 sda a4 for i2c connection. don't forget 4.7k pull resistors. wire library , liquidcrystal_i2c library code
Arduino Forum > Using Arduino > Displays > How to connect 4 pin LCD?
arduino
Comments
Post a Comment