Pycom FiPy, Руководство пользователя, Страница: 318 / 496

ALWAYS_ON mode, the radio is always listening for incoming - packets whenever a
transmission is not taking place. In TX_ONLY the radio goes to sleep as soon as the
transmission completes. In SLEEP mode the radio is sent to sleep permanently and
won’t accept any commands until the power mode is changed.
tx_iq
enables TX IQ inversion.
rx_iq
enables RX IQ inversion.
adr
enables Adaptive Data Rate.
public
selects between the public and private sync word.
tx_retries
sets the number of TX retries in LoRa.LORAWAN mode.
device_class
sets the LoRaWAN device class. Can be either LoRa.CLASS_A or
LoRa.CLASS_C.
In LoRa.LORAWAN mode, only
adr
,
public
,
tx_retries
and
device_class
are
used. All the other params will be ignored as they are handled by the LoRaWAN stack
directly. On the other hand, in LoRa.LORA mode from those 4 arguments, only the
public one is important in order to program the sync word. In LoRa.LORA mode
adr
,
tx_retries
and
device_class
are ignored since they are only relevant to the
LoRaWAN stack.
For example, you can do:
# initialize in raw LoRa mode
lora.init(mode=LoRa.LORA, tx_power= 14 , sf= 12 )
or:
# initialize in LoRaWAN mode
lora.init(mode=LoRa.LORAWAN)
lora.join(activation, auth, * ,timeout=None, dr=None)
Join a LoRaWAN network. Internally the stack will automatically retry every 15 seconds until
a Join Accept message is received.
The parameters are:
activation
: can be either LoRa.OTAA or LoRa.ABP.
auth
: is a tuple with the authentication data.
timeout
: is the maximum time in milliseconds to wait for the Join Accept message to
be received. If no timeout (or zero) is given, the call returns immediately and the status
of the join request can be checked with
lora.has_joined()
.
5.2.2.4 LoRa
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