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Figure 8.
STEVAL-ASTRA1B LEDs and buttons placement
The
implements simple HMI functionalities using:
•
the RGB LED, which turns:
–
blue, if the configuration is ongoing
–
red, if the sending is ongoing
–
green:
◦
with slow blinking, if the Bluetooth
®
Low Energy is not connected
◦
with fast blinking, if the Bluetooth
®
Low Energy is connected
–
yellow, if the Bluetooth
®
Low Energy is connected and sending
•
the frontal button:
–
short press: triggers asynchronous LoRa end data
–
long press: system shutdown
•
the side button:
–
short press: changes the low-power status to run (or vice versa)
–
long press: system reboot
UM3019
HMI using LEDs and buttons
UM3019
-
Rev 1
page 8/43