# SPDX-FileCopyrightText: 2021 Brent Rubell for Adafruit Industries
#
# SPDX-License-Identifier: MIT

"""
'thermometer.py'.

=================================================
digital thermometer project using a tmp36 and a character lcd!

requires:
- simpleio
- CircuitPython_CharLCD Module
"""

import time
import digitalio
import analogio
import adafruit_character_lcd
from simpleio import map_range
from board import D7, D8, D9, D10, D11, D12, D13, A0

#   Character LCD Config:
#   modify this if you have a different sized charlcd
lcd_columns = 16
lcd_rows = 2

#   Metro Express Pin Config:
lcd_rs = digitalio.DigitalInOut(D7)
lcd_en = digitalio.DigitalInOut(D8)
lcd_d7 = digitalio.DigitalInOut(D12)
lcd_d6 = digitalio.DigitalInOut(D11)
lcd_d5 = digitalio.DigitalInOut(D10)
lcd_d4 = digitalio.DigitalInOut(D9)
lcd_backlight = digitalio.DigitalInOut(D13)

#   Init the lcd class
lcd = adafruit_character_lcd.Character_LCD(
    lcd_rs, lcd_en, lcd_d4, lcd_d5, lcd_d6, lcd_d7, lcd_columns, lcd_rows, lcd_backlight
)

therm = analogio.AnalogIn(A0)

while True:
    # get temperature from sensor
    tmp = ((map_range(therm.value, 0, 65535, 0, 3.3)) - 0.5) * 100
    lcd.clear()
    lcd.message("temp: " + str(tmp)[:5] + " * c")
    time.sleep(0.6)