BASIC stamp manual v2.2

5: BASIC Stamp Command Reference – I2COUT

BASIC Stamp Syntax and Reference Manual 2.2 • www.parallax.com • Page 225

I2COUT

BS1 BS2 BS2e BS2sx BS2p BS2pe BS2px

I2COUT Pin, SlaveID, { Address { \LowAddress }, } [ OutputData ]

Function

Send data to a device using the I

C protocol.

• Pin is a variable/constant/expression (0 or 8) that specifies which

I/O pins to use. I

C devices require two I/O pins to communicate.

The Pin argument serves a double purpose; specifying the first pin

(for connection to the chip's SDA pin) and, indirectly, the other

required pin (for connection to the chip's SCL pin). See explanation

below. Both I/O pins will be toggled between output and input

mode during the I2COUT command and both will be set to input

mode by the end of the I2COUT command.

• SlaveID is a variable/constant/expression (0 – 255) indicating the

unique ID of the I

C chip.

• Address is an optional variable/constant/expression (0 – 255)

indicating the desired address within the I

C chip to send data to.

The Address argument may be used with the optional LowAddress

argument to indicate a word-sized address value.

• LowAddress is an optional variable/constant/expression (0 – 255)

indicating the low-byte of the word-sized address within the I

chip to receive data from. This argument must be used along with

the Address argument.

• OutputData is a list of variables, constants, expressions and

formatters that tells I2COUT how to format outgoing data. I2COUT

can transmit individual or repeating bytes, convert values into

decimal, hexadecimal or binary text representations, or transmit

strings of bytes from variable arrays. These actions can be combined

in any order in the OutputData list.