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 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")