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import esp
import machine
import utime
import micropython
import network
import usocket
import adxl
from settings import ssid, password
FLASH_PIN = machine.Pin(0, machine.Pin.IN)
BCEN_PIN = machine.Pin(13, machine.Pin.OUT)
SDA_PIN = machine.Pin(14)
SCL_PIN = machine.Pin(12)
class BarState():
OFF = 1
WAIT_FOR_BARCODE = 2
READING_BARCODE = 3
def __init__(self):
super(BarState, self).__init__()
self.state = self.OFF
class ESPState():
WAIT_FOR_ACTIVITY = 1
CONNECTING = 2
IDLE_ON = 3
PENDING_DATA = 4
def __init__(self):
super(ESPState, self).__init__()
self.state = self.WAIT_FOR_ACTIVITY
class Logger():
def __init__(self, *args, **kwargs):
super(Logger, self).__init__(*args, **kwargs)
#self._log = usocket.socket(usocket.AF_INET, usocket.SOCK_DGRAM)
#self._log.connect(('192.168.19.2', 13578))
def debug(self, log):
print(log)
pass
def info(self, log):
print(log)
pass
class BarESP():
bar = BarState()
esp = ESPState()
adxl = adxl.ADXL(SCL_PIN, SDA_PIN)
#adxl_timer = machine.Timer(-1)
wlan = network.WLAN(network.STA_IF)
uart = machine.UART(0, 115200)
def __init__(self, *args, **kwargs):
super(BarESP, self).__init__()
self._cache = []
self._log = Logger()
self.wlan.active(False)
if (not machine.reset_cause() == machine.DEEPSLEEP_RESET):
self._log.info('non DS reset')
else:
self._log.info('DS Reset')
self.adxl.setup()
self.adxl.activity_intr(False)
self.adxl.inactivity_intr(True)
def run(self):
micropython.kbd_intr(-1)
while (FLASH_PIN.value()):
self.run_esp()
self.run_bar()
micropython.kbd_intr(0x03)
def run_esp(self):
if (self.esp.state == ESPState.WAIT_FOR_ACTIVITY):
if (self.adxl.is_active()):
BCEN_PIN.on()
self.connect()
self.bar.state = BarState.WAIT_FOR_BARCODE
self.esp.state = ESPState.IDLE_ON
else:
self._log.info('Going to sleep - forever!')
self.deepsleep(0)
elif (self.esp.state == ESPState.IDLE_ON):
#self._log.debug(b'IDLE_ON')
if (not self.adxl.is_active()):
if (self.bar.state == BarState.WAIT_FOR_BARCODE):
BCEN_PIN.off()
self.bar.state = BarState.OFF
self._log.debug(b'->BAR_OFF')
if (len(self._cache) == 0):
if (not self.bar.state == BarState.READING_BARCODE):
self.esp.state = ESPState.WAIT_FOR_ACTIVITY
self._log.debug(b'->WFA')
if (len(self._cache) > 0):
self.esp.state = ESPState.PENDING_DATA
self._log.debug(b'->PDb')
elif (self.esp.state == ESPState.PENDING_DATA):
if (len(self._cache) == 0):
self.esp.state = ESPState.IDLE_ON
self.ack_data_sent()
self._log.debug(b'->IO')
else:
if (not (self.wlan.active() and self.wlan.isconnected())):
self._log.debug(b'PD.connect\n')
self.connect()
else:
while (len(self._cache) > 0):
bc = self._cache.pop(0)
self._log.debug(b'PD.pop')
self._log.debug(bc)
try:
s = usocket.socket()
s.connect(('192.168.19.1', 9845))
s.sendall(bc.encode('ascii'))
s.close()
utime.sleep_ms(100)
except Exception as e:
self._log.debug(b'Sending bc failed.')
self._log.debug(e)
self._cache.append(bc)
break
if (len(self._cache) > 0):
self.esp.state = ESPState.PENDING_DATA
else:
self.esp.state = ESPState.IDLE_ON
self.ack_data_sent()
def run_bar(self):
if (self.bar.state == BarState.WAIT_FOR_BARCODE):
bc = self.try_barcode()
if (bc):
self._cache.append(bc)
def connect(self):
if (not self.wlan.active()):
self._log.debug(b'Activate wlan')
self.wlan.active(True)
if (not self.wlan.isconnected() and not self.wlan.status() == network.STAT_CONNECTING):
self._log.debug(b'connecting wlan')
self.wlan.connect(ssid, password)
def deepsleep(self, msec):
self.adxl.activity_intr(True)
machine.deepsleep()
def ack_data_sent(self):
self.uart.write(b'$?GGG\r')
def try_barcode(self):
code = ""
while True:
b = self.uart.read(1)
if (b is None):
# if buffer empty and not currently reading barcode
# return without barcode
if (not self.bar.state == BarState.READING_BARCODE):
return None
else:
self._log.info('read {} - {}'.format(b, code))
if (self.bar.state == BarState.WAIT_FOR_BARCODE):
if (b == b'\x02'):
code = ""
self.bar.state = BarState.READING_BARCODE
else:
if (b == b'\x03'):
self.bar.state = BarState.WAIT_FOR_BARCODE
return code
else:
code = code + b.decode('ascii')
return None
#uart = machine.UART(0, 115200)
#uart.write(b'$+AFA1AAA1EEA0103EEB1EDA0102EDB1BCB0BLA06$-\r')
>>>>>>> bdd37c4... stuff to make it actually work
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