# LED Blink Example #0
# The Simple Way:  Using p2 module's delay(), pinh(), and pinl() methods

# SimpleP2 has two free LEDs on P52 and P53, so using one of these
led=52

# Toggle LED state every second using pinh() and pinl() methods
while True:
  p2.pinh(led)
  p2.delay(1000)
  p2.pinl(led)
  p2.delay(1000)

# LED Blink Example #1
# A Simpler Way:  Using p2 module's delay() and pint() methods
import p2

# SimpleP2 has two free LEDs on P52 and P53, so using one of these
led=52

# Toggle LED state every second using the pint() method
while True:
  p2.pint(led)
  p2.delay(1000)

# LED Blink Example #2
# A better way:  Using p2 module's startled() and setled() methods
# These methods let you adjust the brightness from 0 (off) to 255 (on)
import p2

# SimpleP2 has two free LEDs on P52 and P53, so using one of these
led=52
p2.startled(led,0)  #start off

# Toggle LED state every second using pinh() and pinl() methods
while True:
  p2.setled(led,0) #LED Off
  p2.delay(1000)
  p2.setled(led,255) #LED On
  p2.delay(1000)
 

# LED Blink Example #3
# Without Delay:  Using time module instead of p2 for pause

import p2

# SimpleP2 has two free LEDs on P52 and P53, so using one of these
led=52
level = 0
p2.startled(led,level)  #start off


import time
prev_millis = time.ticks_ms()
interval = 1000

# Toggle LED state every second using pinh() and pinl() methods
while True:
  curr_millis = time.ticks_ms()
  if curr_millis - prev_millis > interval:
     prev_millis = curr_millis
     level = 255 - level #toggle
     p2.setled(led,level)

# LED Blink Example #4
# Fade In/Out:  Using p2 module's startled() and setled() methods
# These methods let you adjust the brightness from 0 (off) to 255 (on)
import p2

# SimpleP2 has two free LEDs on P52 and P53, so using one of these
led=52
p2.startled(led,0)  #start off

# Toggle LED state every second using pinh() and pinl() methods
while True:
  for x in range(256):
    p2.setled(led,x) #Fade In
    p2.delay(4)
  for x in range(256):
    p2.setled(led,255-x) #Fade Out
    p2.delay(4)

# LED Blink Example #5
# Heart Beat:  Using p2 module's startled() and setled() methods
# These methods let you adjust the brightness from 0 (off) to 255 (on)
import p2

# SimpleP2 has two free LEDs on P52 and P53, so using one of these
led=52  # LED pin
value = 0  # LED value
p2.startled(led,value)  #start led

tick = 0  # counter variable

while True:
  if tick <= 3:
    value = 255 - value
    p2.setled(led, value)
  # make sure value of tick has a 0..9 range
  tick = (tick + 1) % 10
  p2.delay(100)

# LED Blink Example #6
# Heartbeat with fade

import p2
led =52
p2.startled(led,0)

tick = 0 # counter variable

while True:
    if tick < 40:
        # self.tick % 20 gives a number 0 to 19
        # subtracting 9 makes it -9 to 10
        # abs maps it 9 to 0 to 10
        # subtracting from 10 maps it 1 to 10 to 0
        # multiplying by 25 scales it 25 to 250 to 0
        p2.setled(led,((10 - (abs((tick % 20) - 9))) * 25))
    tick = (tick + 1) % 100
    p2.delay(10)