FEATURES

• ICSP 5x2 pin connector for in-circuit programming with AVR-PG1 or AVR-PG2
• DIL20 microcontroller socket
• status LED connected to PB4
• reset IC ZM33064
• Quartz crystall oscilator circuit 10MHz
• Voltage regulator +5V, 7805 and filtering capacitors
• Power plug-in jack
• RS232 DB9 female connector , RS232 MAX232 interface circuit with Tx, Rx signals
• 4 optocoupler isolated inputs with screw terminals
• input status LEDs
• 4 relay outputs with 5A/250VAC contacts with screw terminals
• output status LEDs
• four mounting holes 3.3 mm (0.13")
• FR-4, 1.5 mm (0.062"), green soldermask, white silkscreen component print
• dimensions 80x100 mm (3.9 x 3.15")

DOCUMENTS

• AVR-IO.pdf

HARDWARE

• AVR-IO schematic
• AVR ICSP connector (top view)

SOFTWARE

• AVR-IO demo code (C source and HEX)