feat(i2c): 添加时钟显示功能并实现信息切换

在状态显示脚本中添加时钟显示功能，并实现系统信息和时钟每5秒自动切换显示
删除不再使用的env.cfg配置文件
新增独立的时钟显示脚本clock.py

goofish/env.cfg

@@ -1,2 +0,0 @@
-IMAGE_NAME=goofish
-IMAGE_TAG=latest

i2c.py/clock.py

@@ -0,0 +1,43 @@
+# Imports the necessary libraries...
+import time
+import board
+import digitalio
+from PIL import Image, ImageDraw, ImageFont
+import adafruit_ssd1306
+
+# Setting some variables for our reset pin etc.
+RESET_PIN = digitalio.DigitalInOut(board.D4)
+
+i2c = board.I2C()  # uses board.SCL and board.SDA
+# i2c = board.STEMMA_I2C()  # For using the built-in STEMMA QT connector on a microcontroller
+oled = adafruit_ssd1306.SSD1306_I2C(128, 64, i2c, addr=0x3C, reset=RESET_PIN)
+
+# Clear display.
+oled.fill(0)
+oled.show()
+
+# Create blank image for drawing.
+image = Image.new("1", (oled.width, oled.height))
+draw = ImageDraw.Draw(image)
+
+# Load a font in 2 different sizes.
+#font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 16)
+#font2 = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 24)
+font2 = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-microhei.ttc', 24)
+font = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-zenhei.ttc', 16)
+
+offset = 0  # flips between 0 and 32 for double buffering
+
+while True:
+    # write the current time to the display after each scroll
+    draw.rectangle((0, 0, oled.width, oled.height * 2), outline=0, fill=0)
+    text = time.strftime("%A")
+    draw.text((0, 0), text, font=font, fill=255)
+    text = time.strftime("%Y-%m-%d")
+    draw.text((0, 14), text, font=font, fill="red")
+    text = time.strftime("%X")
+    draw.text((0, 36), text, font=font2, fill=255)
+    oled.image(image)
+    oled.show()
+
+    time.sleep(0.5)

i2c.py/status.py

@@ -51,31 +51,54 @@ x = 0
 # same directory as the python script!
 # Some other nice fonts to try: http://www.dafont.com/bitmap.php
 font = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-microhei.ttc', 11)
+font_clock = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-microhei.ttc', 24)
+font_date = ImageFont.truetype('/usr/share/fonts/truetype/wqy/wqy-microhei.ttc', 16)
+
+# 添加图像切换状态变量
+show_system_info = True
+last_switch_time = time.time()
+switch_interval = 5  # 5秒切换一次
 
 while True:
+    # 检查是否需要切换图像
+    current_time = time.time()
+    if current_time - last_switch_time >= switch_interval:
+        show_system_info = not show_system_info
+        last_switch_time = current_time
+    
     # Draw a black filled box to clear the image.
     draw.rectangle((0, 0, width, height), outline=0, fill=0)
-
-    # Shell scripts for system monitoring from here:
-    # https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load
-    cmd = "hostname -I | cut -d' ' -f1"
-    IP = subprocess.check_output(cmd, shell=True).decode("utf-8")
-    cmd = 'cut -f 1 -d " " /proc/loadavg'
-    CPU = subprocess.check_output(cmd, shell=True).decode("utf-8")
-    cmd = "free -m | awk 'NR==2{printf \"Mem: %s/%s MB %.2f%%\", $3,$2,$3*100/$2 }'"
-    MemUsage = subprocess.check_output(cmd, shell=True).decode("utf-8")
-    cmd = 'df -h | awk \'$NF=="/data"{printf "Disk: %d/%d GB  %s", $3,$2,$5}\''
-    Disk = subprocess.check_output(cmd, shell=True).decode("utf-8")
-
-    date_time = time.strftime("%Y-%m-%d, %H:%M:%S")
-    # Write four lines of text.
-
-    draw.text((x, top + 1), "IP: " + IP, font=font, fill=255)
-    draw.text((x, top + 13), "CPU: " + CPU, font=font, fill=255)
-    draw.text((x, top + 23), MemUsage, font=font, fill=255)
-    draw.text((x, top + 35), Disk, font=font, fill=255)
-    draw.text((x, top + 47), date_time, font=font, fill=255)
-
+    
+    if show_system_info:
+        # 显示系统信息
+        # Shell scripts for system monitoring from here:
+        # https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load
+        cmd = "hostname -I | cut -d' ' -f1"
+        IP = subprocess.check_output(cmd, shell=True).decode("utf-8")
+        cmd = 'cut -f 1 -d " " /proc/loadavg'
+        CPU = subprocess.check_output(cmd, shell=True).decode("utf-8")
+        cmd = "free -m | awk 'NR==2{printf \"Mem: %s/%s MB %.2f%%\", $3,$2,$3*100/$2 }'"
+        MemUsage = subprocess.check_output(cmd, shell=True).decode("utf-8")
+        cmd = 'df -h | awk \'$NF=="/data"{printf "Disk: %d/%d GB  %s", $3,$2,$5}\''
+        Disk = subprocess.check_output(cmd, shell=True).decode("utf-8")
+        
+        date_time = time.strftime("%Y-%m-%d, %H:%M:%S")
+        # Write four lines of text.
+        
+        draw.text((x, top + 1), "IP: " + IP, font=font, fill=255)
+        draw.text((x, top + 13), "CPU: " + CPU, font=font, fill=255)
+        draw.text((x, top + 23), MemUsage, font=font, fill=255)
+        draw.text((x, top + 35), Disk, font=font, fill=255)
+        draw.text((x, top + 47), date_time, font=font, fill=255)
+    else:
+        # 显示时钟信息
+        text = time.strftime("%A")
+        draw.text((0, 0), text, font=font_date, fill=255)
+        text = time.strftime("%Y-%m-%d")
+        draw.text((0, 20), text, font=font_date, fill=255)
+        text = time.strftime("%X")
+        draw.text((0, 40), text, font=font_clock, fill=255)
+    
     # Display image.
     disp.image(image)
     disp.show()