This is the very first time I am dealing with the task of hardware interfacing. I needed to interface a 20x4 character LCD with an LPC54628 microcontroller.
I am using https://www.sunrom.com/p/20x4-lcd-black-on-yellowgreen which has a built-in HD44780 LCD controller and to connect it with LPC54628 microcontroller I have used I2C LCD Backpack - PCF8574 (https://www.sunrom.com/p/i2c-lcd-backpack-pcf8574) which interface the LCD using the I2C interface.
As I mentioned before the very first time I am dealing with this type of work, so anyone suggests where to start? it will be good if the example is available.
I have gone through the below links but unable to get how to use it in our case.
Note: Here we haven't used the internal LCD controller of LPC microcontroller, as we needed to keep LPC free from it to perform other tasks and even we don't have a high data flow rate on LCD.