21 lines
459 B
C
21 lines
459 B
C
#include "driver/i2c.h"
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#define SDA_PIN 21
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#define SCL_PIN 22
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#define I2C_PORT I2C_NUM_0
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void i2c_init(void)
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{
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i2c_config_t cfg = {
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.mode = I2C_MODE_MASTER,
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.sda_io_num = SDA_PIN,
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.scl_io_num = SCL_PIN,
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.sda_pullup_en = GPIO_PULLUP_ENABLE,
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.scl_pullup_en = GPIO_PULLUP_ENABLE,
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.master.clk_speed = 400000
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};
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i2c_param_config(I2C_PORT, &cfg);
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i2c_driver_install(I2C_PORT, cfg.mode, 0, 0, 0);
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}
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