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docs/esp8266: Add info about using deep-sleep mode to quickref.

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Damien George 2016-04-21 12:01:50 +01:00
parent 32d7cf6e44
commit fcc9d43c6d
1 changed files with 22 additions and 0 deletions
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docs/esp8266/quickref.rst
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@ -202,6 +202,28 @@ The I2C driver is implemented in software and works on all pins::
i2c.readfrom(0x3a, 4, stop=False) # don't send a stop bit after reading i2c.readfrom(0x3a, 4, stop=False) # don't send a stop bit after reading
i2c.writeto(0x3a, buf, stop=False) # don't send a stop bit after writing i2c.writeto(0x3a, buf, stop=False) # don't send a stop bit after writing
Deep-sleep mode
---------------
Connect GPIO16 to the reset pin (RST on HUZZAH). Then the following code
can be used to sleep, wake and check the reset cause::
import machine
# configure RTC.ALARM0 to be able to wake the device
rtc = machine.RTC()
rtc.irq(trigger=rtc.ALARM0, wake=machine.DEEPSLEEP)
# check if the device woke from a deep sleep
if machine.reset_cause() == machine.DEEPSLEEP_RESET:
print('woke from a deep sleep')
# set RTC.ALARM0 to fire after 10 seconds (waking the device)
rtc.alarm(rtc.ALARM0, 10000)
# put the device to sleep
machine.deepsleep()
OneWire driver OneWire driver
-------------- --------------