AVR utvecklingskort 20-pin med reläer

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 5×2 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: 100×80 mm (3.9×3.15")