BUZZER

ON OFF
echo 1 > /sys/class/leds/beeper_led/brightness echo 0 > /sys/class/leds/beeper_led/brightness

LED

ON OFF
POWER echo 1 > /sys/class/leds/ext_pwr_led1/brightness echo 0 > /sys/class/leds/ext_pwr_led1/brightness
STORAGE echo 1 > /sys/class/leds/ext_sata_led2/brightness echo 0 > /sys/class/leds/ext_sata_led2/brightness
NETWORK echo 1 > /sys/class/leds/ext_net_led3/brightness echo 0 > /sys/class/leds/ext_net_led3/brightness

Main Board Power On

  • Auto Power, set AUTO_PWR to ON

  • Use Power Key, set AUTO_PWR to 1

_images/auto_pwr.png

RK182X Voltage

set RES_VOL_SEL to ON _images/res_vol_sel.png

USB

host mode, set USB SEL to ON _images/usb_sel.png

FAN

RK1820/RK1828 SODIMM Module

The thermal management strategy is the current strategy description, and there may be changes in the subsequent continuous application process, which will be continuously updated.
When the temperature exceeds 46 degrees, the fan will dissipate heat at different speeds. When the temperature exceeds 86 degrees, the frequency of NPU will decrease and computing power will also decrease. If the temperature continues to rise to 100 degrees, it will trigger a system restart.