i2c_master_write_byte() function

Queue a "write byte" command to the commands list. A single byte will be sent on the I2C port. This function shall only be called in I2C master mode. Call `i2c_master_cmd_begin()` to send all queued commands

Syntax

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Summary

Declaration

Definition

from i2c.h:322

esp_err_t i2c_master_write_byte(i2c_cmd_handle_t cmd_handle, uint8_t data, bool ack_en);

Implemented in i2c.c:1319

Arguments

Argument

Description

cmd_handle

I2C commands list

data

Byte to send on the port

ack_en

Enable ACK signal

Return value

- ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error - ESP_ERR_NO_MEM The static buffer used to create `cmd_handler` is too small - ESP_FAIL No more memory left on the heap

Examples

i2c_master_write_byte() is referenced by 7 libraries and example projects:

References

from examples

i2c_master_write_byte() function

Syntax

Arguments

Return value

Examples

References

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