/AVR_Base_M128

Development board for ATmega128 with LCD, RS232 and ISP

MIT LicenseMIT

AVR ATmega128 development board

Simple board with ATmega128 microcontroller and breakout connectors for each port

ATmega base schematic

Hardware:

  • Each port is accessible over Molex 10pin header (Px0 - Px7, +5V, GND)
  • L7805 voltage regulator
  • Serial driver ic for 2x RS-232
  • LCD connector for HD44780 displays (no BUSY reading possible, just wait..)
  • Pinheader for display background LED
  • Reset button
  • 16 MHz crystal oscillator
  • Additional +5V and GND pins
  • Holes for easy mounting

ATmega base schematic

Software:

Check out my other GitHub pages for more driver support (only C), I will post some libraries once I've got more time...