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> Atmel avr-i/o io board + gift ATTINY2313 relay in out
Atmel avr-i/o io board + gift ATTINY2313 relay in out
Click for view in large resolution AVR-I/O board
Click for view in large resolution AVR-I/O: optocouplers inputs
Click for view in large resolution AVR-I/O: realy outputs
Click for view in large resolution AVR-I/O: ISP connector and RS232 interface
AVR-I/O DEVELOPMENT BOARD WITH 4 OPTOISOLATED INPUTS AND 4 RELAY OUTPUTS
Development board for 20 pin AVR microcontrollers (such as ATMEL ATtiny2313, AT90S2313, AT90S1200) with power supply circuit, crystal oscillator circuit, RS232 port, ISP port, 4 relays output, 4 optocoupler isolated inputs
This board can be used as ready part of you " Smart House system" or for your development project with ATMEL AVR controller. Board fully assembled and tested.
* ICSP 5x2 pin connector for in-circuit programming with AVR ISP, AVR ISP v3.2 or any other ISP programmer
* DIL20 microcontroller socket
* status LED connected to PB4
* Quartz crystall oscilator circuit 7.3728 MHz
* Voltage regulator +5V, 78L05 and filtering capacitors
* RS232 DB9 female connector , RS232 MAX232 interface circuit with Tx, Rx signals
* 4 optocoupler isolated inputs with screw terminals
* 4 relay outputs with 10A/250VAC contacts with screw terminals
* four mounting holes 3.3 mm (0.13")
* FR-4, 1.5 mm (0.062"), green soldermask, white silkscreen component print
* dimensions 87x90 mm (3.43 x 3.54")
* ATtiny2313 HEX test firmware for testing relay outputs and RS232. This firmware with interval 1.5 sec TURN ON and TURN OFF each relay output and send on RS232 (9600 baud, 8 bit, 1 bit stop) information about what RELAY output is enabled&disabled at this moment ( quartz crystal 7.3728MHz must be installed on board for correct working of RS232 )
