Embedded Chips and IO

RTC Chips and Modules

• Maxim IC RTC Chips
  • Large variety of I2C and SPI-based RTC chips
  • Many have Arduino Libraries
  • DS-1307 RTC Tutorial (Arduino)

I/O Expander Chips

These chips add additional input/output pins to an existing micro-controller

• Microchip GPIO Expanders
  • MCP23x17 16-GPIO i2C Chip
  • MCP23017 Sample Code (Arduino)
  • MCP-23017 LCD Tutorial (Arduino)

EEPROM memory chips

• Atmel AT24C eeprom (i2c)
• Library for AT24C (Arduiino)