# ILI9341-隨機畫100個任意顏色的點V1
# https://wokwi.com/projects/395193173755213825
from machine import Pin, SPI
import sys
import random
from ili9341 import Display, color565

if(sys.platform=="esp32"):
  disp_sck  = 18 # default SCK of SPI(1)
  disp_mosi = 23 # default MOSI of SPI(1)
  disp_miso = 19  # not use
  disp_res = 4
  disp_dc  = 2
  disp_cs  = 5
  disp_blk = 22

  # 初始化 SPI
  disp_spi = SPI(1, baudrate=20000000, sck=Pin(disp_sck), mosi=Pin(disp_mosi), miso=Pin(disp_miso))

elif(sys.platform=="rp2"):
  disp_sck  = 18 # default SCK of SPI(0)
  disp_mosi = 19 # default MOSI of SPI(0)
  disp_miso = 16  # not use
  disp_res = 20
  disp_dc  = 21
  disp_cs  = 17
  disp_blk = 22

  # 初始化 SPI
  disp_spi = SPI(0, baudrate=24000000, sck=Pin(disp_sck), mosi=Pin(disp_mosi), miso=Pin(disp_miso))

print(disp_spi)

# 設置旋轉角度
ROTATION = 180

# 初始化 SPI 和顯示
display = Display(disp_spi,
                  cs=Pin(disp_cs),
                  dc=Pin(disp_dc),
                  rst=Pin(disp_res),
                  rotation=ROTATION)

# 輸出顯示的寬度和高度
print('w=', display.width, 'h=', display.height)

# 在顯示屏上隨機畫 1000 個任意顏色的點
for _ in range(1000):
    # 隨機選擇點的坐標
    x = random.randint(0, display.width - 1) #0...239
    y = random.randint(0, display.height - 1) #0..319
    
    # 隨機選擇顏色 (RGB)8*3=24 bit
    r = random.randint(0, 255)
    g = random.randint(0, 255)
    b = random.randint(0, 255)
    
    # 使用 color565 函數將 RGB 顏色24位轉換為 16 位顏色格式  
    # 在指定位置x,y畫點
    display.draw_pixel(x, y, color565(r, g, b))