uasyncio works!

appstore.mpy

@@ -149,16 +149,21 @@ display.set_backlight(100)
 #indev=cst816s.CST816S(touch_dev,startup_rotation=lv.DISPLAY_ROTATION._180) # button in top left, good
 
 th = task_handler.TaskHandler()
-
 display.set_rotation(lv.DISPLAY_ROTATION._90)
 
 
 
 
-# trying out script running
+
+
+
+
+
+
 import lvgl as lv
-import _thread
+import uasyncio as asyncio
 import utime
+import gc
 
 # Create a subwindow for the child script
 screen = lv.screen_active()
@@ -172,59 +177,75 @@ parent_label = lv.label(screen)
 parent_label.set_text("Parent: 0")
 parent_label.align(lv.ALIGN.BOTTOM_MID, 0, -10)
 
-# Function to execute the child script in a separate thread
-def execute_script(script_source, lvgl_obj):
-    def thread_func():
-        try:
-            script_globals = {
-                'lv': lv,
-                'subwindow': lvgl_obj,
-                'utime': utime
-            }
-            print("Child thread: Executing script")
-            exec(script_source, script_globals)
-        except Exception as e:
-            print("Child thread error:", e)
+# Function to execute the child script as a coroutine
+async def execute_script(script_source, lvgl_obj):
     try:
-        _thread.stack_size(4096)
-        _thread.start_new_thread(thread_func, ())
-        print("Child thread started")
+        # Create globals for the script
+        script_globals = {
+            'lv': lv,
+            'subwindow': lvgl_obj,
+            'asyncio': asyncio,
+            'utime': utime
+        }
+        print("Child script: Compiling")
+        # Compile and execute the script
+        code = compile(script_source, "<string>", "exec")
+        exec(code, script_globals)
+        # Assume the script defines an async function 'update_child'
+        update_child = script_globals.get('update_child')
+        if update_child:
+            print("Child script: Starting update_child")
+            await update_child()
+        else:
+            print("Child script error: No update_child function defined")
     except Exception as e:
-        print("Error starting child thread:", e)
+        print("Child script error:", e)
 
-# Child script buffer: directly updates a label every second (unsafe)
+# Child script buffer: updates a label every 2 seconds
 script_buffer = """
-print("Child thread: Creating label")
-label = lv.label(subwindow)
-label.set_text("Child: 0")
-label.set_style_text_font(lv.font_montserrat_12, 0)  # Smaller font
-label.align(lv.ALIGN.CENTER, 0, 0)
-count = 0
-while True:
-    count += 1
-    print("Child thread: Updating label to", count)
-    label.set_text(f"Child: {count}")  # Direct LVGL call (unsafe)
-    utime.sleep_ms(1000)
+import asyncio
+async def update_child():
+    print("Child coroutine: Creating label")
+    label = lv.label(subwindow)
+    label.set_text("Child: 0")
+    label.set_style_text_font(lv.font_montserrat_12, 0)  # Smaller font
+    label.align(lv.ALIGN.CENTER, 0, 0)
+    count = 0
+    while True:
+        count += 1
+        print("Child coroutine: Updating label to", count)
+        label.set_text(f"Child: {count}")
+        await asyncio.sleep_ms(2000)  # Update every 2s
 """
-execute_script(script_buffer, subwindow)
 
-# Main loop: update parent label every second
-count = 0
-while True:
-    count += 1
-    print("Main thread: Updating parent to", count)
-    try:
+# Parent coroutine: updates parent label every 1 second
+async def update_parent():
+    count = 0
+    while True:
+        count += 1
+        print("Parent coroutine: Updating label to", count)
         parent_label.set_text(f"Parent: {count}")
-    except Exception as e:
-        print("Parent label error:", e)
-    utime.sleep_ms(1000)
-
-
-
-
-
+        gc.collect()
+        print("Parent coroutine: Free memory:", gc.mem_free())
+        await asyncio.sleep_ms(1000)  # Update every 1s
 
+# Main async function to run all tasks
+async def main():
+    print("Main: Starting tasks")
+    # Start parent and child tasks
+    asyncio.create_task(update_parent())
+    asyncio.create_task(execute_script(script_buffer, subwindow))
+    # Keep the event loop running
+    while True:
+        await asyncio.sleep_ms(100)  # Yield to other tasks
 
+# Run the event loop
+gc.collect()
+print("Free memory before loop:", gc.mem_free())
+try:
+    asyncio.run(main())
+except Exception as e:
+    print("Main error:", e)