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Name: I2C Digital IO Board
Type: Adpater Board
Version: 1.0.0
Author: Dubravko Penezic
Copyright: Creative Commons BY-NC-SA v 3.0
Implemented function:
/* Author: Dubravko Penezic Version: 1.0, 2012 This code is example how to use DpI2CIOPCF8574 library. Source code is provided as is, without any warranty. Distributetd under CC BY v 3.0 http://pcb.daince.net/doku.php?id=arduino_code */ // Library contain Wire.h include, but you need to declare it once again #include <Wire.h> #include <DpI2CIOPCF8574.h> // set the address to 0x20 - 0x27 for PCF8574 // set the address 0x38 - 0x3F for PCF8574A used on daince I/O Expansion #define boardAddr 0x38 // initialize daince I/O Expansion DpI2CIOPCF8574 io; void setup(void) { Serial.begin(9600); Serial.println("DpI2CIOPCF8574 V 1.0"); Wire.begin(); io.begin(boardAddr); // all pins are output high on begining io.setOutputLow(); } void loop(void) { for(int i = 0; i<8; i++){ io.setOutputStatus(); io.toggleOutputPin(i); delay(2000); } }
DpI2CIOPCF8574 library you may found here.