Light

Overview

MoonBot Kit contains two sets of light modules，Respectively located Controller Module and Eyes Module 。 We can use Adafruit_NeoPixel library to drive these two sets of light modules.

We can drive two on-board LED lights by calling `LED’.Drive 12 LED eyes by calling `moonbot_eyes’.At the same time, through the call: ref: `LED eye movement < api-ref-led-action > ` let the eyes make a rich expression.

LED Foundation driven

#include <MoonBot.h>

void setup() {
    // enable main control LED
    LED.begin();
    moonbot_eyes.begin();
    //  clear LED color
    LED.clear();
    LED.show();
    moonbot_eyes.clear();
    moonbot_eyes.show();
}

void loop() {
    if (digitalRead(MOONBOT_PIN_BUTTON_A) == LOW
        && digitalRead(MOONBOT_PIN_BUTTON_B) == LOW) {
        // If A&B is pressed at the same time
        // LED and eye lights display cyan
        LED.fill(0x003030);
        LED.show();
        moonbot_eyes.fill(0x003030);
        moonbot_eyes.show();
    } else if (digitalRead(MOONBOT_PIN_BUTTON_A) == LOW) {
        // If key A is pressed
        // LED0，The right eye display green.
        LED.setPixelColor(0, 0x003000);
        LED.setPixelColor(1, 0);
        LED.show();
        moonbot_eyes.clear();
        moonbot_eyes.fill(0x003000, 0, 6);
        moonbot_eyes.show();
    } else if (digitalRead(MOONBOT_PIN_BUTTON_B) == LOW) {
        // If key B is pressed
        // LED1，The left eye display green.
        LED.setPixelColor(0, 0);
        LED.setPixelColor(1, 0x000030);
        LED.show();
        moonbot_eyes.clear();
        moonbot_eyes.fill(0x000030, 6, 6);
        moonbot_eyes.show();
    } else {
        // LED Eye lights off
        LED.clear();
        LED.show();
        moonbot_eyes.clear();
        moonbot_eyes.show();
    }
}

LED Eye Lighting Action

MoonBot Kit provides abundant Eye action to be used:

colorWipe(moonbot_eyes, 0x40, 200);         // LEDs turn green one by one
theaterChase(moonbot_eyes, 0xFF00, 50);     // Eyes turn around
MoonBotEyesCircle(moonbot_eyes, 50);        // Eyes turn around gradually
rainbow(moonbot_eyes, 5);                   // Eyes show rainbow color
rainbowCycle(moonbot_eyes, 5);              // Eyes show rainbow color one by one

API Reference - Adafruit_NeoPixel

Check Adafruit official website for detailed information: https://learn.adafruit.com/adafruit-neopixel-uberguide/arduino-library-use

API Reference - LED Eyes Action

Header File

Enum

enum moonbot_eyes_t

  • eyes type

value:

kEyesLeft

  • left eye

kEyesRight

  • right eye

kEyesBoth

  • both eyes

enum moonbot_look_t

  • direction that eyes look at

value:

kEyesLookUp

  • Eyes look up

kEyesLookDown

  • Eyes look down

kEyesLookLeft

  • Eyes look left

kEyesLookRight

  • Eyes look right

enum moonbot_eyes_scroll_t

  • eyes scroll type

value:

kEyesScrollUp

  • eyes scroll up

kEyesScrollDown

  • eyes scroll down

kEyesScrollLeft

  • eyes scroll left

kEyesScrollRight

  • eyes scroll right

Functions

void colorFade(Adafruit_NeoPixel& led, uint8_t r, uint8_t g, uint8_t b, uint8_t wait);

  • LED eyes turn to target color gradually

parameter

  • led : LED type

  • r : value of red channel

  • g : value of green channel

  • b : value of blue channel

  • wait : time to wait

void colorWipe(Adafruit_NeoPixel& led, uint32_t c, uint8_t wait);

  • LED change color one by one

parameter

  • led: LED type

  • c: REG color of the LED

  • wait: time to wait for action

void rainbow(Adafruit_NeoPixel& led, uint8_t wait);

  • LED light shine rainbow color

parameter

  • led : LED type

  • wait : time to wait

void rainbowCycle(Adafruit_NeoPixel& led, uint8_t wait) ;

  • LED change light of rainbow color gradually

parameter

  • led : LED type

  • wait : time to wait for changing

void theaterChase(Adafruit_NeoPixel& led, uint32_t c, uint8_t wait);

  • LED turn around with target color

parameter

  • led : LED type

  • c : RGB color of LED light

  • wait : time to wait for action

void MoonBotEyesLook(Adafruit_NeoPixel& led, moonbot_look_t look_tpye, uint32_t color);

  • LED eyes look to the direction

parameter

  • led : LED type

  • look_tpye : the direction that eyes looks to

  • color : eyes color

void MoonBotEyesScroll(Adafruit_NeoPixel& led, moonbot_eyes_scroll_t scroll_tpye, uint32_t color, uint8_t wait = 50);

  • LED eyes scroll to the direction

parameter

  • led : LED type

  • scroll_tpye : direction that eyes scroll to

  • color : LED color type

  • wait : time to wait, 50ms by default

void MoonBotEyesCircle(Adafruit_NeoPixel& led, uint32_t color, moonbot_eyes_t eyes_type = kEyesBoth, uint8_t wait = 50);

  • LED eyes turn around gradually

parameter

  • led : LED type

  • color : eyes color

  • eyes_type : eyes type

  • wait : circle time, 50ms by default