def __SelectChipOnOff(self, ChipOnOff):
timeout = 1000000
if ChipOnOff == 1:
gpio.low(self.spi_select)
#deselect chip after timout
elif ChipOnOff == 0:
while timeout > 1:
timeout -= 1
gpio.high(self.spi_select)
def init(ser, appeui, appkey, rst, join_lora=True, short_startup=False):
"""
.. function:: init(ser, appeui, appkey, rst, join_lora=True)
Performs basic module configuration and try over-the-air activation.
* *ser* is the serial port used for device-to-module communication (ex. SERIAL1)
* *appeui*, *appkey* are needed for otaa
* *rst* is the module reset pin
* if *join_lora* is False the configuration and over-the-air activation attempt are skipped and the module can be configured through the :ref:`config() <config>` function and then the LoRa network can be joined calling the :ref:`join() <join>` function.
"""
global _ser, _appeui, _appkey, _deveui
if _ser is None:
gpio.mode(rst, OUTPUT)
gpio.high(rst)
sleep(100)
gpio.low(rst)
sleep(100)
gpio.high(rst)
_ser = streams.serial(ser, set_default=False, baud=57600)
_get_startup_msg()
if short_startup:
return
_appeui = appeui
_appkey = appkey
if join_lora:
config(appeui=appeui, appkey=appkey)
joined = join()
return joined
def __init__(self, watchdog_time):
sfw.watchdog(0, watchdog_time)
port_expander = sx1503.SX1503(I2C0, 400000)
gpio.add_expander(1, port_expander, pinmap)
gpio.mode(LED_R, OUTPUT)
gpio.mode(LED_G, OUTPUT)
gpio.mode(LED_B, OUTPUT)
gpio.mode(RS485EN, OUTPUT)
gpio.low(LED_G)
gpio.low(LED_R)
gpio.high(LED_B)
gpio.low(RS485EN)
self.port = streams.serial(drvname=SERIAL1,
baud=9600,
set_default=False)
def write(self, packet):
gpio.high(RS485EN)
self.port.write(packet)
gpio.low(RS485EN)
sfw.kick()
def read(self):
gpio.low(RS485EN)
bc = self.port.available()
sfw.kick()
return self.port.read(bc)