Add pwm examples

button/button.py

@@ -0,0 +1,10 @@
+from machine import Pin
+from time import sleep
+
+button = Pin(13, Pin.IN) #D7
+button2 = Pin(14, Pin.IN) #d5
+
+while True:
+    print(button.value(), button2.value())
+    sleep(1)
+

dht11/dht11.py

@@ -1,7 +1,10 @@
 import dht
 import machine
-d = dht.DHT11(machine.Pin(16))
+d = dht.DHT11(machine.Pin(12))
 
-d.measure()
-print(d.temperature())
-print(d.humidity())
+try:
+    d.measure()
+    print(d.temperature())
+    print(d.humidity())
+except Exception as e:
+    print(e)

interrupt/external.py

@@ -0,0 +1,17 @@
+from machine import Pin
+from time import sleep
+
+led = Pin(2, Pin.OUT)
+
+def callback(p):
+    print('pin change', p, p.value())
+    sleep(0.1)
+    
+button1 = Pin(13, Pin.IN)
+button1.irq(trigger=Pin.IRQ_FALLING, handler=callback)
+
+button2 = Pin(14, Pin.IN)
+button2.irq(trigger=Pin.IRQ_FALLING, handler=callback)
+
+while True:
+    pass

ldr/ldr.py

@@ -1,5 +1,8 @@
 from machine import ADC
+from time import sleep
 
 ldr = ADC(0)
 
-print(ldr.read())
+while True:
+    print(ldr.read())
+    sleep(1)

pwm/led.py

@@ -0,0 +1,15 @@
+from machine import Pin
+from machine import PWM
+from time import sleep
+
+led = PWM(Pin(0, Pin.OUT))
+
+for i in range(-1, 1024, 8):
+    led.duty(i)
+    print(i)
+    sleep(0.1)
+    
+for i in range(1023, -1, -8):
+    led.duty(i)
+    print(i)
+    sleep(0.1)

pwm/rgb.py

@@ -0,0 +1,17 @@
+from machine import Pin
+from time import sleep
+
+blue = Pin(0, Pin.OUT)
+green = Pin(4, Pin.OUT)
+red = Pin(5, Pin.OUT)
+
+blue.off()
+red.on()
+sleep(1)
+red.off()
+green.on()
+sleep(1)
+green.off()
+blue.on()
+sleep(1)
+blue.off()