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/**
* BlinkM_funcs_soft.h -- an extremely cut-down version of BlinkM_funcs.h
* for use with SoftI2CMaster library
*
*
* 2010 Tod E. Kurt, http://todbot.com/blog/
* 2014, by Testato: update library and examples for follow Wire’s API of Arduino IDE 1.x
*
*/
int errcnt;
#include "SoftI2CMaster.h"
SoftI2CMaster i2c = SoftI2CMaster();
// set which arbitrary I/O pins will be "power" and "ground" for the BlinkM
static void BlinkM_setPowerPins(byte pwrpin, byte gndpin)
{
pinMode(pwrpin, OUTPUT);
pinMode(gndpin, OUTPUT);
digitalWrite(pwrpin, HIGH);
digitalWrite(gndpin, LOW);
delay(10); // wait for power to stabilize
}
// set which arbitrary I/O pins will be BlinkMs SCL and SDA
// note, this sets the internal pull-up resistors
static void BlinkM_begin( byte sclpin, byte sdapin )
{
i2c.setPins( sclPin,sdaPin, true );
}
// start up a BlinkM with four arbitrary I/O pins
static void BlinkM_begin( byte sclpin, byte sdapin, byte pwrpin, byte gndpin)
{
BlinkM_setPowerPins( pwrpin, gndpin );
i2c.setPins( sclPin,sdaPin, true );
}
// -----------------------------------------------------------------------------
// many BlinkM commands are 3 arguments in length, here's a generalized form
static void BlinkM_sendCmd3( uint8_t addr, uint8_t c, uint8_t a1, uint8_t a2, uint8_t a3 )
{
if( i2c.beginTransmission( addr ) == 0 ) {
++errcnt;
//Serial.println( errcnt); // FIXME
}
i2c.write( c );
i2c.write( a1 );
i2c.write( a2 );
i2c.write( a3 );
i2c.endTransmission();
}
// other BlinkM commands have a single argument
static void BlinkM_sendCmd1( uint8_t addr, uint8_t c, uint8_t a1)
{
if( i2c.beginTransmission( addr ) == 0 ) {
++errcnt;
//Serial.println( errcnt); // FIXME
}
i2c.write( c );
i2c.write( a1 );
}
static void BlinkM_stopScript(uint8_t addr)
{
i2c.beginTransmission( addr );
i2c.write( 'o' );
i2c.endTransmission();
}
static void BlinkM_setFadeSpeed( uint8_t addr, uint8_t f)
{
BlinkM_sendCmd1( addr, 'f', f );
}
static void BlinkM_fadeToRGB( uint8_t addr, uint8_t r, uint8_t g, uint8_t b )
{
BlinkM_sendCmd3( addr, 'c', r,g,b );
}
static void BlinkM_setRGB( uint8_t addr, uint8_t r, uint8_t g, uint8_t b )
{
BlinkM_sendCmd3( addr, 'n', r,g,b );
}
static void BlinkM_off(uint8_t addr)
{
BlinkM_stopScript( addr );
BlinkM_setFadeSpeed(addr,10);
BlinkM_setRGB(addr, 0,0,0 );
}
// Get the BlinkM firmware version
static int BlinkM_getVersion(byte addr)
{
i2c.beginTransmission( addr );
i2c.write( 'Z' );
i2c.endTransmission();
i2c.requestFrom( addr );
uint8_t major_ver = i2c.read();
uint8_t minor_ver = i2c.readLast();
i2c.endTransmission();
return (major_ver<<8) + minor_ver;
}
//
static void BlinkM_getRGBColor(byte addr, byte* r, byte* g, byte* b)
{
i2c.beginTransmission(addr);
i2c.write('g');
i2c.endTransmission();
i2c.requestFrom( addr );
*r = i2c.read();
*g = i2c.read();
*b = i2c.readLast();
i2c.endTransmission();
}