histeresis = 2
rele = Pin(16, Pin.OUT, value=1)
f = open("setpoint.dat", "r")
setpoint = int(f.read())
f.close()
#gpio12 == D6 NodeMCU
#gpio14 == D5 NodeMCU
r = RotaryIRQ(pin_num_clk=12,
pin_num_dt=14,
min_val=0,
max_val=50,
reverse=False,
range_mode=RotaryIRQ.RANGE_WRAP)
r.set(value=setpoint)
disp_SP = setpoint
y_SP = 28
y_vent = 39
y_wifi = 51
oled.text("Set Point:", 0, y_SP)
oled.text(str(setpoint), 112, y_SP)
oled.text("Ventilador: NO", 0, y_vent)
if wlan.isconnected():
oled.text("WiFi: " + wlan.config('essid'), 0, y_wifi)
nic = wlan.config('mac')
mac = ""
for ot in list(nic):
h = hex(ot)
mac += h[2] + h[3]
class CoffeeGrinder:
"""CoffeeGrinder Class"""
CPS_DEFAULT = 167
def __init__(self):
"""Init"""
machine.WDT(True)
self.tft = self.initDisplay()
self.tft.clear()
self.encoder_state_machine = RotaryIRQ(25,
26,
min_val=0,
max_val=2,
reverse=True,
range_mode=Rotary.RANGE_WRAP)
self.encoder_grinder_time = None
self.run = True
self.update_display = True
self.print_s = 0.0
self.encoder_value = 0
self.state = 0
self.state_old = 0
self.edit_state = False
self.cup = Cup()
self.single_sec = machine.nvs_getint("single_sec")
self.double_sec = machine.nvs_getint("double_sec")
self.cps = machine.nvs_getint("cps")
self.seconds = 0.1
self.edit_cps = False
self.pin_start = machine.Pin(33,
mode=machine.Pin.IN,
pull=machine.Pin.PULL_DOWN,
handler=self.__startGrinding,
trigger=machine.Pin.IRQ_HILEVEL,
acttime=0,
debounce=500000)
self.pin_menu = machine.Pin(27,
mode=machine.Pin.IN,
pull=machine.Pin.PULL_DOWN,
handler=self.setCPS,
trigger=machine.Pin.IRQ_FALLING,
acttime=0,
debounce=500000)
self.pin_out = machine.Pin(32, mode=machine.Pin.INOUT)
self.pin_out.value(False)
@staticmethod
def initDisplay():
"""initialize the display"""
tft = display.TFT()
tft.init(tft.ST7789,
rst_pin=23,
backl_pin=4,
miso=0,
mosi=19,
clk=18,
cs=5,
dc=16,
width=235,
height=340,
backl_on=1)
tft.font(tft.FONT_DejaVu18)
# invert colors
tft.tft_writecmd(0x21)
# set orientation (optional)
tft.orient(tft.PORTRAIT_FLIP)
# set window size
tft.setwin(52, 40, 188, 280)
# x, y -> x2, y2
tft.rect(0, 0, 135, 240, 0xFFFFFF)
return tft
def __textWrapper(self, x, y, text, color=0xFFFFFF):
"""Function to warp text"""
self.tft.text(x - self.__textCenterOffset(text),
y - self.__textFontSizeOffset(),
text,
color=color)
def __initText(self):
"""Init Text"""
text = "Initialize"
self.__textWrapper(67, 110, text)
text = "Coffegrinder"
self.__textWrapper(67, 130, text)
time.sleep(4)
def __textCenterOffset(self, text):
"""Center offset"""
return int(self.tft.textWidth(text) / 2)
def __textFontSizeOffset(self):
"""Fontsize offset"""
return int(self.tft.fontSize()[1] / 2)
def __showCoffeData(self):
"""Show Display Data"""
self.update_display = True
color = 0xFFFFFF
if self.edit_state:
color = 0xFF0000
text_s = "Timer: {} \r".format(round(self.print_s, 2))
if self.print_s < 10:
text_s = "Timer: {} \r".format(round(self.print_s, 2))
qty = round(self.print_s * self.cps, 1)
text_g = "QTY: {} g\r".format(qty)
if qty < 10:
text_g = "QTY: {} g\r".format(qty)
self.tft.textClear(67, 200, text_s, color)
if self.state != 2:
self.__textWrapper(67, 200, text_s, color)
self.__textWrapper(67, 225, text_g, color)
def __stateSingeleShot(self):
"""Single shot"""
self.pin_start = machine.Pin(33,
mode=machine.Pin.IN,
pull=machine.Pin.PULL_DOWN,
handler=self.__startGrinding,
trigger=machine.Pin.IRQ_HILEVEL,
acttime=0,
debounce=500000)
self.update_display = True
self.tft.clear()
self.cup.oneCup(self.tft, 57, 90)
text = "Single Shot!"
self.__textWrapper(67, 30, text)
self.print_s = self.single_sec
self.run = False
def __stateDoubleShot(self):
"""Double Shot"""
self.pin_start = machine.Pin(33,
mode=machine.Pin.IN,
pull=machine.Pin.PULL_DOWN,
handler=self.__startGrinding,
trigger=machine.Pin.IRQ_HILEVEL,
acttime=0,
debounce=500000)
self.update_display = True
self.tft.clear()
self.cup.oneCup(self.tft, 27, 90)
self.cup.oneCup(self.tft, 87, 90)
text = "Double Shot!"
self.__textWrapper(67, 30, text)
self.print_s = self.double_sec
self.run = False
def __stateEndlessShot(self):
"""Endless"""
self.pin_start = machine.Pin(33,
mode=machine.Pin.IN,
pull=machine.Pin.PULL_DOWN,
handler=self.__startGrinding,
trigger=machine.Pin.IRQ_HILEVEL,
acttime=0,
debounce=500000)
self.update_display = True
self.tft.clear()
self.cup.endLess(self.tft, 68, 110, 20)
text = "Endless!"
self.__textWrapper(67, 30, text)
self.run = False
def __startGrinding(self, pin):
"""Interrupt routine for grinder start"""
if self.edit_state:
return
self.pin_start.init(trigger=machine.Pin.IRQ_DISABLE)
self.pin_menu.init(trigger=machine.Pin.IRQ_DISABLE)
time.sleep(0.1)
if not self.pin_start.value():
self.pin_menu.init(trigger=machine.Pin.IRQ_FALLING)
self.pin_start.init(trigger=machine.Pin.IRQ_HILEVEL)
return
self.pin_out.value(True)
if self.state != 2:
sleep = self.print_s
while sleep > 0:
text = "Seconds: {}".format(round(sleep, 2))
self.__textWrapper(67, 200, text, 0xec7d15)
sleep -= 0.1
time.sleep(0.1)
else:
text = "Grind!"
self.__textWrapper(67, 200, text)
count = 0.2
time.sleep(0.2)
while self.pin_start.value():
qty = round(count * self.cps, 1)
text_g = "QTY: {} g".format(qty)
if qty < 10:
text_g = "QTY: {} g\r".format(qty)
self.__textWrapper(67, 225, text_g)
count += 0.1
time.sleep(0.1)
self.__textWrapper(67, 200, "\r ")
self.pin_out.value(False)
print(self.pin_out.value())
self.update_display = True
time.sleep(1)
self.pin_menu.init(trigger=machine.Pin.IRQ_FALLING)
self.pin_start.init(trigger=machine.Pin.IRQ_HILEVEL)
def __setCoffeGrindTime(self, pin):
"""Interrupt routine for set timer"""
self.update_display = True
if self.state == 0:
self.single_sec = self.seconds / 10
self.print_s = self.single_sec
machine.nvs_setint("single_sec", int(self.seconds))
elif self.state == 1:
self.double_sec = self.seconds / 10
self.print_s = self.double_sec
machine.nvs_setint("double_sec", int(self.seconds))
def switchState(self, pin):
"""Switch state on button press"""
self.pin_menu.init(trigger=machine.Pin.IRQ_DISABLE)
self.update_display = True
if self.state == 2:
self.edit_state = False
self.pin_menu.init(trigger=machine.Pin.IRQ_FALLING)
return
if self.edit_state:
self.edit_state = False
elif not self.edit_state:
self.edit_state = True
if self.edit_state:
value = 0.1
if self.state_old == 0:
value = self.single_sec
elif self.state_old == 1:
value = self.double_sec
value *= 10
self.encoder_state_machine.set(value=value,
min_val=1,
max_val=120,
range_mode=Rotary.RANGE_WRAP)
else:
self.encoder_state_machine.set(value=self.state_old,
min_val=0,
max_val=2,
range_mode=Rotary.RANGE_WRAP)
self.pin_menu.init(trigger=machine.Pin.IRQ_FALLING)
def setCPS(self, pin):
self.pin_menu.init(trigger=machine.Pin.IRQ_DISABLE)
self.edit_cps = True
def editCPS(self):
self.encoder_state_machine.set(value=self.cps * 10,
min_val=100,
max_val=200,
range_mode=Rotary.RANGE_WRAP)
self.tft.clear()
text = "Set CPS"
self.__textWrapper(67, 110, text)
time.sleep(1.0)
while True:
self.cps = self.encoder_value / 100
text = "CPS: {}\r".format(round(self.cps, 2))
self.__textWrapper(67, 130, text, 0xec7d15)
if not self.pin_menu.value():
print(self.pin_menu.value())
break
time.sleep(0.1)
machine.nvs_setint("cps", int(self.cps * 100))
self.encoder_state_machine.set(value=0,
min_val=0,
max_val=2,
range_mode=Rotary.RANGE_WRAP)
self.tft.clear()
self.edit_cps = False
self.pin_menu.init(trigger=machine.Pin.IRQ_FALLING,
handler=self.switchState)
def __getEncoderValue(self):
"""Thread for fast polling encoder value"""
while True:
ntf = _thread.wait(0)
if ntf == _thread.EXIT:
# Terminate the thread
return
self.encoder_value = self.encoder_state_machine.value()
time.sleep(0.001)
def __shotState(self):
"""Thread for checking states"""
self.state_old = self.encoder_value
while True:
ntf = _thread.wait(50)
if ntf == _thread.EXIT:
# Terminate the thread
return
if not self.edit_state:
self.state = self.encoder_value
if self.state_old != self.state:
self.run = True
self.state_old = self.state
else:
self.seconds = self.encoder_value
def runProgram(self):
"""Run Main Program"""
if not self.single_sec:
self.single_sec = 1
self.single_sec /= 10
if not self.double_sec:
self.double_sec = 1
self.double_sec /= 10
if not self.cps:
self.cps = self.CPS_DEFAULT
self.cps /= 100
self.tft.set_fg(0x000000)
self.shot_state_th = _thread.start_new_thread("Shot_state",
self.__shotState, ())
_thread.start_new_thread("t", self.__getEncoderValue, ())
self.__initText()
if self.edit_cps:
self.editCPS()
self.pin_menu.init(trigger=machine.Pin.IRQ_FALLING,
handler=self.switchState)
# self.__stateSingeleShot()
self.state = 0
self.run = True
while True:
if self.state == 0 and self.run:
self.__stateSingeleShot()
elif self.state == 1 and self.run:
self.__stateDoubleShot()
elif self.state == 2 and self.run:
self.__stateEndlessShot()
if self.edit_state:
self.__setCoffeGrindTime(1)
if self.update_display:
self.__showCoffeData()
self.update_display = False
time.sleep(0.1)
