985ad3d8e3
* Add and update I2C topics * Throw in some edits for the serial buffer apis * Add an example to serial read buffer
33 lines
1.1 KiB
Markdown
33 lines
1.1 KiB
Markdown
# i2c Write Number
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Write a number to a device at an I2C address using a specified number format.
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```sig
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pins.i2cWriteNumber(0, 0, NumberFormat.Int8LE, true);
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```
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### ~hint
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**Simulator**
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This function needs real hardware to work with. It's not supported in the simulator.
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### ~
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## Parameters
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* **address**: the 7-bit I2C address of the device to send to send **value** to.
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* **value**: the number to send to **address**.
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* **format**: the [NumberFormat](/types/buffer/number-format) for **value**.
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* **repeated**: if `true`, a [repeated start condition](http://www.i2c-bus.org/repeated-start-condition/) is set to help make sure the number is written to the device with out an interruption. If set to `false` (the default), the data is written without setting a start condition more than once.
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## Example
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Send the value `2055` to the 7-bit I2C address as a 32-bit number. The `32`, big-endian, and integer chosen for the format.
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```blocks
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pins.i2cWriteNumber(32, 2055, NumberFormat.Int32BE);
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```
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## See also
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[What's I2C?](http://www.i2c-bus.org/), [number format](/types/buffer/number-format) |