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pxt-calliope/docs/reference/pins/i2c-read-number.md
Peli de Halleux 8e811b913e adding pins.pulseIn API
2016-08-17 11:18:15 -07:00

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I2C Read Number

Read one number from the specified 7-bit I2C address, in the specified number format.

pins.i2cReadNumber(0, NumberFormat.Int8LE);

Parameters

  • address: the 7-bit I2C address from which to read the number.
  • format: the number format. 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.

Example

The following example reads a number in big-endian, 16-bit, unsigned integer format from the 7-bit I2C address 32.

pins.i2cReadNumber(32, NumberFormat.UInt16BE);

~hint

This function is not supported in the simulator.

~

See also

I2C