C++ (Cpp) WIRE_READ Examples

Example #1

File: SRF02.cpp Project: chrispbarlow/cloudrobotics2013

void SRF02::update()
{
	if (interval == 0)
	{
		return;
	}

	if (rangingTriggered && millis() > nextRead)
	{
		for (SRF02 *i = first; i != 0; i = i->next)
		{
			Wire.beginTransmission(i->deviceId);
			WIRE_WRITE(2);
			Wire.endTransmission();
			Wire.requestFrom(i->deviceId, (uint8_t) 2);
			i->value = ((unsigned long) WIRE_READ()) << 8;
			i->value += (unsigned long) WIRE_READ();
		}
		rangingTriggered = false;
	}

	if (millis() > nextRequest)
	{
		for (SRF02 *i = first; i != 0; i = i->next)
		{
			Wire.beginTransmission(i->deviceId);
			WIRE_WRITE((uint8_t) 0);
			WIRE_WRITE(i->mode);
			Wire.endTransmission();
		}
		nextRead = millis() + READ_DURATION;
		nextRequest = millis() + interval;
		rangingTriggered = true;
	}
}

Example #2

File: CMPS03.cpp Project: TonyCalvez/arduino-framework

unsigned int CMPS03::read ()
{
	Wire.beginTransmission(deviceId);
	WIRE_WRITE((uint8_t) 2);
	Wire.endTransmission();
	delay(1);
	Wire.requestFrom(deviceId, (uint8_t) 2);
	unsigned int value = ((unsigned int) WIRE_READ()) << 8;
	value = value + ((unsigned int) WIRE_READ());
	return value;
}