Difference between revisions of "Light Indicator"

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(Created page with "{{Language|Light Indicator}} {| style="width: 800px;" |- | ==Objective== Here we make a simple light indicator, which classify light value in three levels—green, blue and re...")
 
 
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{{Language|Light Indicator}}
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{{Language| Light Indicator}}
 
{| style="width: 800px;"
 
{| style="width: 800px;"
 
|-
 
|-
 
|
 
|
 
==Objective==
 
==Objective==
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Here we make a simple light indicator, which classify light value in three levels—green, blue and red.
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Here we make a simple light indicator, which divides light value into three levels, that is, green, blue and red. [[File:light_indicator-ok.jpg|600px|center]]
  
 
==Principle==
 
==Principle==
 +
We adopt the Light sensor to detect the light intensity. The system can judge which range the light intensity lies and let the LED present the corresponding color. In the same range, the color gets brighter along with the light intensity increases. 
 +
[[File:light_indicator-sch.jpg|600px|center]]
  
 
==Equipment==
 
==Equipment==
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|[[Microduino-Light]]||1||light-sensitive sensor  
 
|[[Microduino-Light]]||1||light-sensitive sensor  
 
|-
 
|-
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|[[Microduino-Colorled]]||1||Colored led light  
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|[[Microduino-Color LED]]||1||Colored led light  
 
|-
 
|-
 
| [[Microduino-BM]]||1||Battery management
 
| [[Microduino-BM]]||1||Battery management
 
|}
 
|}
 +
[[File:light_indicator-module.jpg|600px|center]]
  
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[[File:light_indicator.jpg|600px|center|thumb]]
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==Preparation==
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*Setup 1: Use a USB cable to connect the CoreUSB and the PC/Mac, the open Arduino IDE. [[File:CoreUSB_Ble_pc.jpg|600px|center]]
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==Hardware Buildup==
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*Setup 2: Download the program:
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*Setup 1：Connect CoreUSB to your PC, open program examples, select the right board (Microduino-CoreUSB) and download program through serial port.
 
 
[https://github.com/Microduino/Microduino_Tutorials/blob/master/MCookie_Tutorial/light_led/light_led.ino light_led]
 
[https://github.com/Microduino/Microduino_Tutorials/blob/master/MCookie_Tutorial/light_led/light_led.ino light_led]
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*Setup2：Connect the light-sensitive resistor to A0 pin of Sensorhub and the colored LED light to D6 pin.
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[[File: light_indicator-load.jpg|600px|center]]
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[[file:Microduino-sensorhub_rule.JPG|thumb|800px|center]]
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* Setup 3： Load the code, choose the right board and COM port for program download after compiling.  
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[[file: light_indicator _A0_6.JPG|thumb|800px|center]]
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==Program Description==
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*Setup5：Stack CoreUSB, Sensorhu and BM.
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*Pin Definition of the sensor: The Color LED connects to D6 and the Light sensor connects to A0.  
−
[[file: light_indicator_module.JPG|thumb|800px|center]]
 
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*Setup6：Connect the battery to BM.  
 
−
[[file: light_indicator _bm.JPG|thumb|800px|center]]
 
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==Software Debuggin==
 
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Code description: One part to acquire sensor values and the other part to control LED brightness and color change according the values.  
 
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*Sensor pin description 
 
 
<source lang="cpp">
 
<source lang="cpp">
 
#define PIN 6
 
#define PIN 6
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#define Light_PIN A0
 
#define Light_PIN A0
 
</source>
 
</source>
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*Light intensity pre-set value and the light can be divided into three levels.  
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*Light intensity pre-set values: You can classify the light into three levels.  
 
<source lang="cpp">
 
<source lang="cpp">
 
#define Light_value1 400
 
#define Light_value1 400
Line 57: Line 52:
 
</source>
 
</source>
  
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*The colored LED will adjust color and brightness according to light intensity.   
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*The Color LED can adjust color and brightness according to light intensity.   
 
<source lang="cpp">
 
<source lang="cpp">
 
if (sensorValue < Light_value1)
 
if (sensorValue < Light_value1)
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     colorWipe(strip.Color(map(sensorValue, 800, 960, 0, 255), 0, 0));
 
     colorWipe(strip.Color(map(sensorValue, 800, 960, 0, 255), 0, 0));
 
</source>
 
</source>
 +
*"map(val,x,y,m,n)"is the reflection function, which can reflect the (x-y) value of a certain range to （m-n）. "val" is the data that you need to reflect.
  
 +
==Hardware Buildup==
 +
*Setup 1: Connect the photosensitive resistor to the A0 pin of the Sensorhub and the Color LED to D6.
 +
[[file: light_indicator _A0_6.JPG|800px|center]]
 +
*Setup 2: Connect the activated battery box and the BM module.
 +
[[File:CoreUSB_Ble_steup2.jpg|600px|center]]
 +
*Setup 3: Then, stack all modules together without considering order. Congratulations! You've finished the circuit buildup.
 +
[[File: ight_indicator_steup-all.jpg|600px|center]]
 
==Result==
 
==Result==
−
Change light intensity from weak to strong, you can see gree, blue and red in order.  
+
By changing the light environment, the light from dark to bright colors are changed to green - blue - red, and the weaker the light is, the lower the brightness becomes.
−
 
+
You can also build a beautiful look for this project through Lego boards.
 
==Video==
 
==Video==
  
 
|}
 
|}

Latest revision as of 06:57, 30 September 2016

Language: English  • 中文

Objective

Here we make a simple light indicator, which divides light value into three levels, that is, green, blue and red.
600px

Principle

We adopt the Light sensor to detect the light intensity. The system can judge which range the light intensity lies and let the LED present the corresponding color. In the same range, the color gets brighter along with the light intensity increases.

Light indicator-sch.jpg

Equipment

Module Number Function
Microduino-CoreUSB 1 Core board
SMicroduino-Sensorhub 1 Sensor pinboard
Microduino-Light 1 light-sensitive sensor
Microduino-Color LED 1 Colored led light
Microduino-BM 1 Battery management
600px

Preparation

  • Setup 1: Use a USB cable to connect the CoreUSB and the PC/Mac, the open Arduino IDE.
    CoreUSB Ble pc.jpg
  • Setup 2: Download the program:

light_led

600px
  • Setup 3： Load the code, choose the right board and COM port for program download after compiling.

Program Description

  • Pin Definition of the sensor: The Color LED connects to D6 and the Light sensor connects to A0. 
#define PIN 6
Adafruit_NeoPixel strip = Adafruit_NeoPixel(1, PIN, NEO_GRB + NEO_KHZ800);

#define Light_PIN A0
  • Light intensity pre-set values: You can classify the light into three levels. 
#define Light_value1 400
#define Light_value2 800
  • Light detection 
sensorValue = analogRead(Light_PIN);
  • The Color LED can adjust color and brightness according to light intensity. 
if (sensorValue < Light_value1)
    colorWipe(strip.Color(0, map(sensorValue, 10, 400, 0, 255), 0));
  else if (sensorValue >= Light_value1 && sensorValue < Light_value2)
    colorWipe(strip.Color(0, 0, map(sensorValue, 400, 800, 0, 255)));
  else if (Light_value2 >= 800)
    colorWipe(strip.Color(map(sensorValue, 800, 960, 0, 255), 0, 0));
  • "map(val,x,y,m,n)"is the reflection function, which can reflect the (x-y) value of a certain range to （m-n）. "val" is the data that you need to reflect.

Hardware Buildup

  • Setup 1: Connect the photosensitive resistor to the A0 pin of the Sensorhub and the Color LED to D6.
800px
  • Setup 2: Connect the activated battery box and the BM module.
CoreUSB Ble steup2.jpg
  • Setup 3: Then, stack all modules together without considering order. Congratulations! You've finished the circuit buildup.
600px

Result

By changing the light environment, the light from dark to bright colors are changed to green - blue - red, and the weaker the light is, the lower the brightness becomes. You can also build a beautiful look for this project through Lego boards.

Video

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