from machine import Pin, SPI
import time
from max7219 import Max7219

# 初始化
spi = SPI(1, baudrate=10000000, sck=Pin(12), mosi=Pin(11))
cs_pin = Pin(10, Pin.OUT)
screen = Max7219(32, 8, spi, cs_pin, rotate_180=False)

def clear_screen():
    """清屏"""
    screen.fill(0)
    screen.show()

def display_scroll_text(text, delay=0.1):
    """滚动显示文本"""
    width = len(text) * 8  # 估算文本宽度
    for i in range(width + 32):
        screen.fill(0)
        screen.text(text, 32 - i, 0, 1)
        screen.show()
        time.sleep(delay)

def display_with_effect(number_str):
    """带有效果的显示"""
    # 清屏
    clear_screen()
    
    # 亮度渐变效果
    for brightness in range(0, 9):
        screen.brightness(brightness)
        time.sleep(0.05)
    
    # 显示数字
    screen.text(number_str, 2, 0, 1)
    screen.show()
    
    # 闪烁效果
    for _ in range(3):
        time.sleep(0.5)
        screen.brightness(2)
        time.sleep(0.1)
        screen.brightness(8)
    
    print(f"Displaying: {number_str}")

def main():
    print("MAX7219 Display Demo")
    
    # 显示 "1234"
    #display_with_effect("1234")
    
    # 等待5秒
    #time.sleep(5)
    
    # 滚动显示效果
    display_scroll_text("HELLO word", delay=0.08)
    
    # 显示不同内容
    '''numbers = ["5678", "90AB", "CDEF"]
    for num in numbers:
        display_with_effect(num)
        time.sleep(2)'''
    
    # 回到1234
    #display_with_effect("1234")

# 运行主程序
if __name__ == "__main__":
    try:
        main()
    except KeyboardInterrupt:
        clear_screen()
        print("Program stopped")