MCP23016 I/O expander and LCD display
Basic diagram.

Arduino Displays Time-Date Reading DS1307 RTC

by Lewis Loflin

This project demonstrates the use of the MCP23016 I/O expander being used with a LCD display and a Ds1307 RTC to display time/date. It combines several other earlier demonstrations. I used the MCP23016 I/O expander due to the lack of output pins on the ATMEGA168/Arduino.

Arduino connected to DS1307
Where to connect the MCP23016.

Arduino code for this project: ds1307_lcd.txt.

Stepper Motors

Serial LCD Display and assorted Sensors

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