Product description
Development board for 20 pin AVR microcontrollers with power supply circuit, crystal oscillator circuit, RS232 port, 10 pin STK ICSP port, 4 relay output, and 4 optocoupler isolated inputs.
FR-4, 1.5 mm (0.062"), green solder mask, white silkscreen component print Four mounting holes 3.3 mm (0.13") ICSP 5x2 pin connector for in-circuit programming with AVR Programmers Voltage regulator +5V, 7805 and filtering capacitors Quartz crystal oscillator circuit - 10MHz Reset IC ZM33064 Status LED connected to PB4 Power plug-in jack DIL20 microcontroller socket 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 Dimensions: 100x80 mm (3.9x3.15")
FR-4, 1.5 mm (0.062"), green solder mask, white silkscreen component print Four mounting holes 3.3 mm (0.13") ICSP 5x2 pin connector for in-circuit programming with AVR Programmers Voltage regulator +5V, 7805 and filtering capacitors Quartz crystal oscillator circuit - 10MHz Reset IC ZM33064 Status LED connected to PB4 Power plug-in jack DIL20 microcontroller socket 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 Dimensions: 100x80 mm (3.9x3.15")