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-rw-r--r--components/drivers/include/drivers/sensor.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/components/drivers/include/drivers/sensor.h b/components/drivers/include/drivers/sensor.h
index e05006f9f6..ede8d11c99 100644
--- a/components/drivers/include/drivers/sensor.h
+++ b/components/drivers/include/drivers/sensor.h
@@ -90,8 +90,6 @@ extern "C" {
#define RT_SENSOR_UNIT_PPB (15) /* Concentration unit: ppb */
#define RT_SENSOR_UNIT_DMS (16) /* Coordinates unit: DMS */
#define RT_SENSOR_UNIT_DD (17) /* Coordinates unit: DD */
-#define RT_SENSOR_UNIT_PERCENT (18) /* Percentage unit: % */
-
/* Sensor communication interface types */
#define RT_SENSOR_INTF_I2C (1 << 0)
@@ -219,7 +217,7 @@ struct rt_sensor_data
rt_int32_t force; /* Force sensor. unit: mN */
rt_uint32_t dust; /* Dust sensor. unit: ug/m3 */
rt_uint32_t eco2; /* eCO2 sensor. unit: ppm */
- rt_uint32_t spo2; /* SpO2 sensor. unit: % */
+ rt_uint32_t spo2; /* SpO2 sensor. unit: permillage */
} data;
};