'''
CYD display test showing ESP chip temperature

external libraries:
https://github.com/rdagger/micropython-ili9341

2026-01-25 mchris
'''

from ili9341 import Display, color565
import esp32
from machine import Pin, SPI
import time

display_spi = SPI(1, baudrate=80000000, sck=Pin(14), mosi=Pin(13))
# The library needs a reset pin, which does not exist on this board
display = Display(display_spi, dc=Pin(2), cs=Pin(15), rst=Pin(15),rotation=90)

# Turn on display backlight
backlight = Pin(21, Pin.OUT)
backlight.on()

DARKGRAY=color565(80, 80, 80)
BLUE=color565(0, 0, 255)
GREEN=color565(0, 255, 0)
WHITE=color565(255, 255, 255)
YELLOW=color565(0, 255, 255)
BLACK=color565(0, 0, 0)

display.clear(DARKGRAY)

x1=10;x2=160;y1=100;y2=100
display.draw_line(x1, y1, x2, y2, GREEN)

x=20;y=20
display.draw_text8x8(x, y, "CHIP TEMPERATURE", YELLOW,  background=BLACK, rotate=0)
x=40;y=40;w=80;h=30;
display.fill_rectangle(x, y, w, h, BLUE)

counter=0
while True:
    temp_raw = esp32.raw_temperature()
    chipTemperature = round((temp_raw - 32) * 5/9, 1)
    display.draw_text8x8(62,52, str(chipTemperature), WHITE, background=BLUE)
    display.draw_text8x8(140,103, str(counter), GREEN, background=DARKGRAY)
    counter=counter+1
    time.sleep_ms(1000)