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> Sparkfun - olimex 20 pin avr relay development board
Sparkfun - olimex 20 pin avr relay development board
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.
* ICSP 5x2 pin connector for in-circuit programming with AVR Programmers
* Voltage regulator +5V, 7805 and filtering capacitors
* Quartz crystal oscillator circuit - 10MHz
* Status LED connected to PB4
* RS232 MAX232 interface circuit with Tx, Rx signals
* 4 optocoupler isolated inputs with screw terminals
* 4 relay outputs with 5A/250VAC contacts with screw terminals
Dimensions: 100x80 mm (3.9x3.15")
Board does not come with AVR installed
