Help¶

Set the pulse amplitude to control the LED2 (IR) current. The actual measured LED current for each part can vary significantly due to the trimming methodology. 0x00 = 0.0 mA 0x01 = 0.2 mA 0x02 = 0.4 mA 0x0f = 3.1 mA 0xff = 50.0 mA

Direct dependencies¶

MAX30101 && SENSOR

(Includes any dependencies from ifs and menus.)

Default¶

0x33

Kconfig definition¶

At <Zephyr>/drivers/sensor/max30101/Kconfig:111

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:32 → <Zephyr>/drivers/Kconfig:62 → <Zephyr>/drivers/sensor/Kconfig:141

Menu path: (Top) → Device Drivers → Sensor Drivers → MAX30101 Pulse Oximeter and Heart Rate Sensor

config MAX30101_LED2_PA
    hex "LED2 (IR) pulse amplitude"
    range 0 0xff
    default 0x33
    depends on MAX30101 && SENSOR
    help
      Set the pulse amplitude to control the LED2 (IR) current. The actual
      measured LED current for each part can vary significantly due to the
      trimming methodology.
      0x00 = 0.0 mA
      0x01 = 0.2 mA
      0x02 = 0.4 mA
      0x0f = 3.1 mA
      0xff = 50.0 mA

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)