pxt-calliope/docs/reference/pins/i2c-write-number.md

I2C Write Number

Write the specified number to the specified 7-bit I2C address in the specified number format.

pins.i2cWriteNumber(0, 0, NumberFormat.Int8LE, true);

Parameters

• address: the 7-bit I2C address to which to send value
• value: the number to send to address
• format: the number format for value. Formats include Int8LE, UInt8LE, Int16LE, UInt16LE, Int32LE, Int8BE, UInt8BE, Int16BE, UInt16BE, and Int32BE.
  • Int stands for "integer", and UInt stands for "unsigned integer".
  • LE stands for "little-endian" and BE stands for "big-endian".
  • The number in each format name stands for the number of bits in the format.
• repeated repeated start, true - don't send stop at end

Example

The following example sends the value 2055 to the 7-bit I2C address 32 in big-endian 32-bit integer format.

pins.i2cWriteNumber(32, 2055, NumberFormat.Int32BE);

~hint

This function is not supported in the simulator.

~

See also

I2C