IIC Write Block

This block Writes to the Register ? of an IIC (Inter-Integrated Circuit) sensor connected to port ? at Address ?.

Display Settings

1. The number (upper right corner) shows which of your NXT’s ports this block writes to. You can change this number in the configuration panel if you need to.
2. The number (middle left top with the 'A') shows the address this block writes to. You can change this number in the configuration panel at the 'Address' field.
3. The number (middle left middle with the 'R') shows the Register this block writes to. You can change this number in the configuration panel at the 'WReg' field. Some IIC sensors have only one register. In this case you need to turn off writing the WReg value so WValue will be writen to the only register. Uncheck the WriteReg field to turn off WReg. The number (middle left middle with the 'R') will appear grayed out.
4. The number (left bottom with the 'V') shows the value this block writes. You can change this number in the configuration panel at the 'WValue' field. (enter all values as decimal. example 64 = Hx40, 111 = Hx6F).

Configuring the IIC Read block

IIC Write block Data Hub plugs

This chart shows the different characteristics of the plugs on the IIC Write block’s data hub:

	Plug	Data Type	Possible Range	What the Values Mean	This Plug is Ignored When...
	Port	Number	1 - 4	Selects the port the IIC device is connected to
	Address	Number	2 - 254	The address of the device to read from (even numbers only)
	WReg	Number	0 - 255	The register of the device to write to	Ignored if 'WriteReg' = True
	WValue	Number	0 - 255	The value to write
	WriteReg	Logic	True/False	True = write register value, False = do not write register value
	Yes / No	Logic	True/False	True = an error on the bus occurred, False = no error
	Status Out	Number	32 - -35	0 = no error. 32 = Port is busy performing a transaction. -35 = Last transaction failed (possible device failure). -33 = Specified port is out of range. -32 = Specified port is not properly configured.