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i2c_master_write_to_device() function
Perform a write to a device connected to a particular I2C port. This function is a wrapper to `i2c_master_start()`, `i2c_master_write()`, `i2c_master_read()`, etc... It shall only be called in I2C master mode.
Syntax
esp_err_t i2c_master_write_to_device(i2c_port_t i2c_num,
uint8_t device_address,
const uint8_t* write_buffer,
size_t write_size,
TickType_t ticks_to_wait);
Implemented in ![]()
i2c.c:1027
Return value
- ESP_OK Success - ESP_ERR_INVALID_ARG Parameter error - ESP_FAIL Sending command error, slave hasn't ACK the transfer. - ESP_ERR_INVALID_STATE I2C driver not installed or not in master mode. - ESP_ERR_TIMEOUT Operation timeout because the bus is busy.