Project

led.py

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+import utime
+import random
+from machine import Pin
+
+def time_ms() -> int:
+    return int(utime.ticks_ms())
+
+""" global led1
+global led2
+global led3
+global led4
+global led1_state
+global led2_state
+global led3_state
+global led4_state
+global next_on_time_1
+global next_on_time_2
+global next_on_time_3
+global next_on_time_4 """
+
+led1 = Pin(2, Pin.OUT)
+led2 = Pin(3, Pin.OUT)
+led3 = Pin(4, Pin.OUT)
+led4 = Pin(5, Pin.OUT)
+
+current_time = time_ms()
+led1_last_time = current_time
+led2_last_time = current_time
+led3_last_time = current_time
+led4_last_time = current_time
+
+led1_state = 0
+led2_state = 0
+led3_state = 0
+led4_state = 0
+
+next_on_time_1 = current_time + 1000
+next_on_time_2 = current_time + 1000
+next_on_time_3 = current_time + 1000
+next_on_time_4 = current_time + 1000
+
+def single_led_test(led):
+    led.value(0)
+    utime.sleep_ms(400)
+    led.value(1)
+    utime.sleep_ms(400)
+
+def led_test():
+    single_led_test(led1)
+    single_led_test(led2)
+    single_led_test(led3)
+    single_led_test(led4)
+
+def update_led(state, next_on_time, led):
+    current_time = time_ms()
+
+    try:
+        if state == 0:
+            if next_on_time <= current_time:
+                state = 1
+                next_on_time = current_time + random.randint(100, 400)
+                led.value(0)
+        else:
+            if next_on_time <= current_time:
+                state = 0
+                led.value(1)
+                next_on_time = current_time + random.randint(100, 2000)
+    except Exception as e:
+        print('Error in update_led: ' + str(e))
+        pass
+
+    return state, next_on_time
+
+def update_leds():
+    global led1
+    global led2
+    global led3
+    global led4
+    global led1_state
+    global led2_state
+    global led3_state
+    global led4_state
+    global next_on_time_1
+    global next_on_time_2
+    global next_on_time_3
+    global next_on_time_4
+
+    (led1_state, next_on_time_1) = update_led(led1_state, next_on_time_1, led1)
+    (led2_state, next_on_time_2) = update_led(led2_state, next_on_time_2, led2)
+    (led3_state, next_on_time_3) = update_led(led3_state, next_on_time_3, led3)
+    (led4_state, next_on_time_4) = update_led(led4_state, next_on_time_4, led4)
+
+def led_init():
+    global led1
+    global led2
+    global led3
+    global led4
+
+    print('Led init')
+
+    led1.value(1)
+    led2.value(1)
+    led3.value(1)
+    led4.value(1)