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65 lines
1.9 KiB
Plaintext
65 lines
1.9 KiB
Plaintext
menu "I2C Device Library"
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config I2CDEV_USE_LEGACY_DRIVER
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bool "Use Legacy I2C Driver API"
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default n
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help
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Select this option to use the older ESP-IDF I2C driver API (driver/i2c.h)
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instead of the newer driver API (driver/i2c_master.h).
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This is automatically determined by the build system based on your ESP-IDF version.
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For ESP-IDF versions prior to v5.3, the legacy driver will be used automatically.
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You can manually override this setting if needed.
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config I2CDEV_AUTO_ENABLE_PULLUPS
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bool "Automatically enable internal I2C pullups when not configured"
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default n
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depends on !IDF_TARGET_ESP8266
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help
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When enabled, internal pullup resistors are automatically enabled
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when both sda_pullup_en and scl_pullup_en are false (default state).
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Useful for development and prototyping. Disable for production
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systems with external pullups to avoid interference.
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Considerations:
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- May increase power consumption slightly
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- Could interfere with carefully tuned external pullups
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- Not recommended for battery-powered applications
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Note: This option only affects the modern i2cdev driver (ESP32 family).
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Legacy driver behavior is unchanged for compatibility.
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config I2CDEV_DEFAULT_SDA_PIN
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int "Default I2C SDA pin"
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default 21
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help
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Default SDA pin for I2C devices.
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config I2CDEV_DEFAULT_SCL_PIN
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int "Default I2C SCL pin"
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default 22
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help
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Default SCL pin for I2C devices.
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config I2CDEV_MAX_DEVICES_PER_PORT
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int "Maximum number of devices per I2C port"
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default 8
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help
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Maximum number of devices that can be registered on a single I2C port.
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config I2CDEV_TIMEOUT
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int "I2C transaction timeout, milliseconds"
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default 1000
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range 10 5000
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config I2CDEV_NOLOCK
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bool "Disable the use of mutexes"
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default n
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help
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Attention! After enabling this option, all I2C device
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drivers will become non-thread safe.
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Use this option if you need to access your I2C devices
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from interrupt handlers.
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endmenu |