Configuration
Functions for device/system configuration.
ConnectWifi
ConnectWifi(ssid, password)
N/A
Connect to a WiFi access point with the given ssid
and password
.
NetworkTime
NetworkTime(transport)
N/A
Set the date/time using an Internet time server with the given transport
(e.g. a WiFiClient
)
Sleepy
Sleepy(flags=0)
N/A
The Sleepy
function enables automatic sleep management on
both AVR and Atmel SAMD (ARM) devices. When sleep
management is enabled, the scheduler will attempt to put the
CPU in sleep/standby mode whenever there is 2 seconds or
more before the next scheduled event. Tests on both
architectures showed slightly over 2mA current draw while
sleeping, which is probably a 1/10th or less of your awake
mode usage.
The sleep manager uses the RTC on SAMD architectures and the
WDT on AVR. Sleepy
can be called from the beginning or
end of the app
function to enable sleep management. If
you set the RTC time during setup, you must do that before
calling Sleepy
.
The resolution of both the RTC and WDT is 1 second. Using even second values in your program schedule will minimize the amount of time the CPU will be idle between the time it wakes and the next event happens.
USB Interaction - The USB interface tends to interfere
with applications using sleep mode, and it is disabled by
default when you enable sleep management. I recommend using
the SPI interface for output when using sleep mode. If you
must use the USB you can call Sleepy
with the
SLEEP_MGR_USB
argument to enable the management of the
USB. In this case, the USB will be detached before sleeping
and reattached upon wake up.