dotsize=8,
pin_rs=26,
pin_e=24,
pins_data=[22, 18, 16, 12],
numbering_mode=GPIO.BOARD)
lcd.clear()
GPIO.setup(selectBtnPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(incBtnPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(decBtnPin, GPIO.IN, pull_up_down=GPIO.PUD_UP)
startUp()
while inSetUp:
time.sleep(1)
lcd.clear()
lcd.write_string("Welcome to")
lcd.crlf()
lcd.write_string("Planet Finder")
time.sleep(2)
lcd.clear()
lcd.write_string("Select a planet")
lcd.crlf()
lcd.write_string("Mercury")
time.sleep(2)
while True:
time.sleep(1)
class RaspberryPi(IODevice):
def __init__(self,
shutdown_system=False,
output_rows=2,
output_columns=16):
logger.debug(f"{FUNCTION_CALL_MSG}, {__class__}")
super().__init__(shutdown_system=shutdown_system,
output_rows=output_rows,
output_columns=output_columns)
GPIO.setwarnings(False)
self.front_button_gpio = 4
self.back_button_gpio = 3
self.back_led_gpio = 14 # power LED
self.bit_mode = 4
self.pin_modes = {
4: [33, 31, 29, 23],
8: [40, 38, 36, 32, 33, 31, 29, 23]
}
self.lcd = CharLCD(
numbering_mode=GPIO.BOARD,
cols=self.output_columns,
rows=self.output_rows,
pin_rs=37,
pin_e=35,
pins_data=self.pin_modes[self.bit_mode],
)
self.print_cleanup_method = self.print_cleanup_method_override
self.print_method = self.print_method_override
smiley = (
0b00000,
0b01010,
0b01010,
0b00000,
0b10001,
0b10001,
0b01110,
0b00000,
)
self.lcd.create_char(0, smiley)
self.smiley = chr(0)
self.front_button = ButtonWrapper(pin=self.front_button_gpio,
bounce_time=0.01,
hold_time=1,
hold_repeat=True)
self.front_button.when_pressed = self.front_button__when_pressed
self.front_button.when_held = self.front_button__when_held
self.front_button.when_released = self.front_button__when_released
self.back_button = ButtonWrapper(pin=self.back_button_gpio,
bounce_time=0.01,
hold_time=1,
hold_repeat=True)
self.back_button.when_pressed = self.back_button__when_pressed
self.back_button.when_held = self.back_button__when_held
self.back_button.when_released = self.back_button__when_released
self.back_led = LED(self.back_led_gpio)
self.startup_method = self.set_startup_method
def print_cleanup_method_override(self):
logger.debug(FUNCTION_CALL_MSG)
self.lock.acquire()
self.lcd.home()
self.lcd.clear()
self.lock.release()
def print_method_override(self, framebuffer):
for row in framebuffer:
try:
self.lcd.write_string(row)
self.lcd.crlf()
except Exception as e:
print("Something went wrong:")
print(e)
return
def shutdown(self):
logger.debug(FUNCTION_CALL_MSG)
if self.shutdown_system:
logger.debug("Shutting down system")
self.back_led.on()
os.system("sudo poweroff")
else:
raise NotImplementedError
# logger.debug("Shutting down Pi process")
# This throws some gpiozero related error on exit, but oh well
# os.kill(self.pid, signal.SIGUSR1)
# TODO: Keeping this around for the blinking logic that I need to reimplement
# def shutdown_old(self, hold_time=6):
# logger.debug(FUNCTION_CALL_MSG)
# # find how long the button has been held
# p = self.back_button.pressed_time
# logger.debug(f"Held for {p} seconds")
# # blink rate will increase the longer we hold
# # the button down. E.g., at 2 seconds, use 1/4 second rate.
# self.back_led.blink(on_time=0.5 / p, off_time=0.5 / p)
# if p > hold_time:
# # Depending on system, either shutdown
# # whole system, or just the object process
# if self.shutdown_system:
# logger.debug("Shutting down system")
# self.back_led.on()
# os.system("sudo poweroff")
# else:
# raise NotImplementedError
# # logger.debug("Shutting down Pi process")
# # # This throws some gpiozero related error on exit, but oh well
# # os.kill(self.pid, signal.SIGUSR1)
def default_splash_screen(self):
lines = [
f"{self.smiley*3}RASPBERRY{self.smiley*4}",
f"{self.smiley*7}PI{self.smiley*7}"
]
self.stream_lines(lines)
def default_startup_text(self):
startup_steps_lines = [['Loading', '.'], ['Loading', '..'],
['Loading', '...']]
self.stream_multiples_of_lines(startup_steps_lines)
# TODO: Rename this
def set_startup_method(self):
self.default_startup_text()
self.default_splash_screen()
def front_button__when_pressed(self):
logger.debug(FUNCTION_CALL_MSG)
def front_button__when_held(self):
logger.debug(FUNCTION_CALL_MSG)
def front_button__when_released(self):
logger.debug(FUNCTION_CALL_MSG)
def back_button__when_pressed(self):
logger.debug(FUNCTION_CALL_MSG)
def back_button__when_held(self):
logger.debug(FUNCTION_CALL_MSG)
def back_button__when_released(self):
logger.debug(FUNCTION_CALL_MSG)
self.back_led.off()
def run(self):
self.print_cleanup_method()
self.startup_method()
super().run()
