Programmers

All on one SLOW page
Serial Port
Parallel Port
Smart Programmers
Serial Loaders

Projects

ATmega8 Serial LCD
ATtiny2313 Serial LCD
ATtiny4313 Serial LCD
ATmega328 SIRC
ATtiny2313 SIRC
40-pin Dev Board
28-pin Dev Board
AVR PS/2 Keyboard
AVR MAX232 RTS/CTS
AVR Dual RS232 Ports

Minimal Circuits

ATmega16
ATmega32
ATmega644
ATmega1284
ATmega8515
ATmega8535
ATmega8
ATmega48
ATmega88
ATmega168
ATmega328
ATmega162
ATmega128
ATtiny13
ATtiny2313
ATtiny4313
ATtiny24
ATtiny84
ATtiny25
ATtiny45
ATtiny85

Other Stuff

ATtiny13 vs ATtiny85
ATmega8 vs ATmega88
ATmega16 vs ATmega164
ISP and SPI
MAX232 Arduino
A small FAQ
Hardware Info

MAX232 Datasheet

The MAX232 Datasheet from Maxim

MAX232 Arduino

This is a modification of the schematic for the RS232 serial loader to show how to hook a MAX232 to an Arduino. It is not a shield - just a little kludge board that can be added to any microcontroller.

Arduino with a MAX232
MAX232 Arduino Schematic. Click for larger image.