led_strip — LED Strip Driver

The main functionality and function of the led_strip module

Function

led_strip.set_single(index, red_value, green_value, blue_value)

Set color of each light on the LED Strip, parameters：

• index Set the light order No, the parameter range is 1 ~ the value of total lights on the LED Strip。
• red_value Set LED red value, the parameter range is 0 ~ 255, 0 means no red color, 255 means the brightest red color.
• green_value Set LED green value, the parameter range is 0 ~ 255, 0 means no green color, 255 means the brightest green color.
• blue_value Set LED blue value, the parameter range is 0 ~ 255, 0 means no blue color, 255 means the brightest blue color.

led_strip.set_all(red_value, green_value, blue_value)

Set color for all lights, parameters：

• red_value Set LED red value, the parameter range is 0 ~ 255, 0 means no red color, 255 means the brightest red color.
• green_value Set LED green value, the parameter range is 0 ~ 255, 0 means no green color, 255 means the brightest green color.
• blue_value Set LED blue value, the parameter range is 0 ~ 255, 0 means no blue color, 255 means the brightest blue color.

led_strip.set_effect(mode, speed, list)

Set effect of the LED Strip, parameters：

• mode effect mode, the parameter range is 0 ~ 5

  0： means static mode: lights status keep the last setting。

  1： means rolling mode: the front N lights turn on firstly as the setting color, then the N lights move to 2~N+1 and the first one turns off, then 3~N+2 and first two lights turn off, just like below picture:

  

  2： means repeat mode: the front N lights turn on firstly as the setting color, and rest lights will copy that status until the last light, just like below picture:

  

  3： means marquee mode: N light turn on and then move repeatedly at a setting speed, as below picture:

  

  4： means breathing mode: the lights change at the speed of human breath, that is they turn on/off each three seconds.

  5： means gradient mode: all lights on the strip change their color gradually to the new setting color in a specific setting time.

• speed dynamic change speed, the parameter range is 0 ~ 8, 0 means the slowest speed and 8 is the fastest(It only works when there is dynamic change setting of lights status).

• list changeable parameter list, the parameter range is 0 ~ 8，the first parameter means the first light color, the second parameter means the second light color, and so on; And color parameters are as below: black(0x00), red(0x01), orange(0x02), yellow(0x03), green(0x04), cray(0x05), blue(0x06), purple(0x07) and while(0x08).

Sample Code：

import codey
import neurons
import event
import time

neurons.led_strip.set_all(0, 0, 255)
time.sleep(1)

@event.button_a_pressed
def on_button_a_pressed():
    print("button a event successed")
    neurons.led_strip.set_all(0, 0, 0)
    neurons.led_strip.set_single(1, 255, 0, 0)
    time.sleep(1)
    neurons.led_strip.set_all(0, 0, 0)
    neurons.led_strip.set_single(2, 255, 0, 0)
    time.sleep(1)
    neurons.led_strip.set_all(0, 0, 0)
    neurons.led_strip.set_single(3, 255, 0, 0)
    time.sleep(1)

@event.button_b_pressed
def on_button_b_pressed():
    print("button b event successed")
    neurons.led_strip.set_effect(0, 8, (1,6,8,1,6,8,1,6,8))
    time.sleep(3)
    neurons.led_strip.set_effect(1, 8, (1,6,8,1,6,8,1,6,8))
    time.sleep(3)
    neurons.led_strip.set_effect(2, 8, (1,6,8,1,6,8,1,6,8))
    time.sleep(3)
    neurons.led_strip.set_effect(3, 8, (1,6,8,1,6,8,1,6,8))
    time.sleep(3)
    neurons.led_strip.set_effect(4, 8, (1,6,8,1,6,8,1,6,8))
    time.sleep(3)
    neurons.led_strip.set_effect(5, 8, (1,6,8,1,6,8,1,6,8))
    time.sleep(3)

@event.button_c_pressed
def on_button_c_pressed():
    print("button c event successed")
    neurons.led_strip.set_effect(0, 5, (1,1,1,1,1,1,1,1,1))
    time.sleep(3)
    neurons.led_strip.set_effect(1, 5, (1,1,1,1,1,1,1,1,1))
    time.sleep(3)
    neurons.led_strip.set_effect(2, 5, (1,1,1,1,1,1,1,1,1))
    time.sleep(3)
    neurons.led_strip.set_effect(3, 5, (1,1,1,1,1,1,1,1,1))
    time.sleep(3)
    neurons.led_strip.set_effect(4, 5, (1,1,1,1,1,1,1,1,1))
    time.sleep(3)
    neurons.led_strip.set_effect(5, 5, (1,1,1,1,1,1,1,1,1))
    time.sleep(3)