micronEC/micronec.py

from lcd_driver import I2C_LCD
from machine import I2C, Pin
from welcome import WelcomeScreen
from counter import CounterArray
from lcd_screen import CounterScreen


# some constants, change on need
I2C_ADDR     = 0x27  # for pico w, this should fit
I2C_NUM_ROWS = 2  # DON'T CHANGE
I2C_NUM_COLS = 16  # DON'T CHANGE
WELCOME_CYCLES = 1  # adjusts how often the "Starting..." runs through at startup
COUNTER_NUMBER = 2  # how many counters do you want?
COUNTER_NAMES = ["Counter 1", "Counter 2"]  # names of the counters (MUST contain names for all counters)
COUNTER_PINS = {0:2,1:3}  # which pins to listen on (form {<COUNTER NUMBER STARTING FROM 0>:<GPIO PIN>}) (there MAY be doubles, you MAY not give pins for all counters)

# initialize the lcd display with GPIO pins 0 and 1 for data on i2c channel 0 
_i2c = I2C(0, sda=Pin(0), scl=Pin(1), freq=400000)
lcd = I2C_LCD(_i2c, I2C_ADDR, I2C_NUM_ROWS, I2C_NUM_COLS)
# initialize the counter array (class managing all the counters)
counterArray = CounterArray(COUNTER_NUMBER, COUNTER_NAMES)
# initialize the welcome screen
ws = WelcomeScreen(lcd)
# initialize the counter screen (display counter values on lcd) 
cs = CounterScreen(lcd, counterArray)

# Real program
ws.show_welcome(WELCOME_CYCLES)  # show welcome/startup message
cs.show_screen()  # DON'T REMOVE; show counter screen one time, may take up to 15s
counterArray.register_listener(COUNTER_PINS, cs.show_screen)  # register the listeners on the given pins