def main():
pkt_tx_queue = []
def audio_frame_ready(data):
pkt_tx_queue.append(data)
lora_ctl = lora.LoRaController()
spk = speaker.Speaker(DAC('P22'))
adc = ADC()
apin = adc.channel(pin='P13', attn=ADC.ATTN_11DB)
uphone = microphone.Microphone(apin, audio_frame_ready)
tlk_btn = talk_button.TalkButton(uphone)
print('Started ...')
flash(0x007f00) # green
while True:
Timer.sleep_us(1000)
# Handle the RX packets
# TODO: refactor to use callback mechanism.
while True:
data = lora_ctl.recv()
if data:
spk.enque(data)
else:
break
# Handle the TX queue
# TODO: refactor to use Python synchronized Queue.
while pkt_tx_queue:
data = pkt_tx_queue.pop(0)
print('.')
lora_ctl.send(data)
def flash(color, delay_us=100000):
"""Generate a 100ms of flash on RGB LED.
Args:
color: int
"""
pycom.heartbeat(False)
pycom.rgbled(color)
Timer.sleep_us(delay_us)
pycom.rgbled(0x000000) # off
def MonitorFlow(): # 1Litre = 596 pulses
TotalDelay = 0
TickCounter = 0
PulseLogic = _FlowMeter()
while (TotalDelay < 1000000): # 1 second delay
Reading = _FlowMeter()
if ((Reading > PulseLogic)): # rising edge
TickCounter += 1
PulseLogic = Reading
TotalDelay += 50
Timer.sleep_us(50)
LitresPerMinute = round((TickCounter / 10), 2)
return LitresPerMinute # Litres/Min
def audio_loopback():
def handle_audio(data):
spk.enque(data)
int_mode = False
spk = speaker.Speaker(DAC('P22'), int_mode=int_mode, debug=False)
adc = ADC()
apin = adc.channel(pin='P13', attn=ADC.ATTN_11DB)
uphone = microphone.Microphone(apin, handle_audio, int_mode=int_mode)
tlk_btn = talk_button.TalkButton(uphone)
print('Audio playpack ...')
flash(0x000010) # Dark blue
while True:
if int_mode:
Timer.sleep_us(1000000)
else:
uphone.loop()
spk.loop()
def ClockIn(self, RS_State): # RS_State is either 1 or 0
RS_State = RS_State << 1 # RS is on bit 1
ClkOff = 0x00 # clock is on bit 0
ClkOn = 0x01
self.MCP23S17Ref.WritePortB(ClkOff | RS_State)
Timer.sleep_us(1)
self.MCP23S17Ref.WritePortB(ClkOn | RS_State)
Timer.sleep_us(1)
self.MCP23S17Ref.WritePortB(ClkOff | RS_State)
Timer.sleep_us(100)
def __init__(self, LCD_SPI_Object, LCD_SPI_CS):
self.MCP23S17Ref = MCP23S17Backend(LCD_SPI_Object, LCD_SPI_CS)
Timer.sleep_us(50000)
self.InitFunctionSet()
Timer.sleep_us(4500)
self.InitFunctionSet()
Timer.sleep_us(200)
self.InitFunctionSet()
# now set the properties you want
self.FunctionSet()
self.DisplayOnOff()
self.ClearScreen()
self.EntryModeSet()
def ClearScreen(self): # D7 -> 00000001 <- D0 (0x01)
self.MCP23S17Ref.WritePortA(0x01)
self.ClockIn(0)
Timer.sleep_us(2000)
def tx_waveform(self, high_pulse, low_pulse):
self.tx_pin.value(1)
Timer.sleep_us(high_pulse)
self.tx_pin.value(0)
Timer.sleep_us(low_pulse)
from machine import Timer
start = 0
end = 0
p_light = Pin('P20', mode=Pin.OUT)
p_light.value(1)
p_trig = Pin("G30", mode=Pin.OUT) # Trig = 30
p_echo = Pin("G31", mode=Pin.IN) # Echo = 31
chrono = Timer.Chrono()
chrono.reset()
p_trig.value(1)
Timer.sleep_us(10)
p_trig.value(0)
while (p_echo.value() == 0):
start = chrono.read_us()
print(start)
while (p_echo.value() == 1):
end = chrono.read_us()
print(end)
chrono.stop()
print(start, end)
'''
while(True):
else:
Irrigation_Delay_Count = Irrigation_Delay_Count - 1
else:
if (Irrigation_Delay_Count == 0):
Solenoid_Status = False
Irrigation_Delay_Count = Irrigation_Delay_Sec_Off
else:
Irrigation_Delay_Count = Irrigation_Delay_Count - 1
# Status Control
LCD_Status_String = ""
if (Solenoid_Status == False): # off status
pycom.rgbled(0xff0000) # red
_Solenoid(True) # hardware buffer inverts logic
LCD_Status_String = "(off)"
else:
pycom.rgbled(0x00ff00) # green
_Solenoid(False) # hardware buffer inverts logic
LCD_Status_String = "(on)"
# LCD Updater
Delay_Count_Hours, Remain = divmod(Irrigation_Delay_Count,
3600) # divide seconds into hours 60*60
Delay_Count_Mins, Remain = divmod(
Remain, 60) # devide remaining seconds into minutes
UpdateLCD(
TimeStampString() + " " + LCD_Status_String,
"Count: " + str(Delay_Count_Hours) + ":" + str(Delay_Count_Mins) +
":" + str(Remain))
Timer.sleep_us(1000000) # One Second Delay