2.17 haas506 2.0 development tutorial system (only versions above 2.2 are supported)

1. Development board sleep 、 To turn it off 、 restart

Case description

• This case demonstrates the use of the development board to automatically shut down and restart .

main.py

import system
import utime

# Sleep 
system.lightsleep()
# After hibernation , Device power consumption will be reduced , The program can run 
utime.sleep(2)
# Exit dormancy 
print(' Value returned from hibernation ：',system.lightsleep(0))
utime.sleep(2)
# To turn it off , The program will not run after shutdown 
system.poweroff()
''' # restart  system.reset() '''

Output

<E>platform_sys SleepEnable1:0
 Value returned from hibernation ： 0

3.Class-system

reset	poweroff	lightsleep
Module restart	Module shutdown	Normal sleep mode

system - System module

• Module function ： Control the startup, restart and sleep functions of the development board .

reset - Module restart

• The functionality ： Module restart

• The function prototype ：

system.reset()

• Parameter description ： nothing

poweroff() - Module shutdown

• The functionality ： Module shutdown

• The function prototype ：

system.poweroff()

• Parameter description ： nothing

lightsleep - Normal sleep mode

• The functionality ： Normal sleep mode , Reduced power consumption after sleep

• The function prototype ：

system.lightsleep(value)

• Parameter description ：

Parameters	explain
No parameter	Sleep all the time
value = 0	Exit dormancy

• Return value ： Return value =0, normal , Return value =-1, Failure