[English] Simple code to receive commands from the serial port and write to an I2C 16x2 LCD display.

I am an experienced embedded software engineer (and Professor) and I was shocked at how difficult this was. Using these devices on Arduino with the Arduino IDE "just works." Pain points for ESP-IDF ...

Hitachi’s HD44780 based 16×2 character LCD are very cheap and widely available, and is an essential part for any project that displays information. Using the LCD backpack, desired data can be ...

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C protocol. Real time clock means it runs even after power failure. When power is ...