Light Indicator

Language:	English  • 中文

Objective Here we make a simple light indicator, which classify light value in three levels—green, blue and red. Principle Equipment Module Number Function Microduino-CoreUSB 1 Core board SMicroduino-Sensorhub 1 Sensor pinboard Microduino-Light 1 light-sensitive sensor Microduino-Colorled 1 Colored led light Microduino-BM 1 Battery management File:Light indicator.jpg 600px Hardware Buildup Setup 1：Connect CoreUSB to your PC, open program examples, select the right board (Microduino-CoreUSB) and download program through serial port. light_led Setup2：Connect the light-sensitive resistor to A0 pin of Sensorhub and the colored LED light to D6 pin. File:Light indicator A0 6.JPG 800px Setup5：Stack CoreUSB, Sensorhu and BM. File:Light indicator module.JPG 800px Setup6：Connect the battery to BM. File:Light indicator bm.JPG 800px Software Debuggin Code description: One part to acquire sensor values and the other part to control LED brightness and color change according the values. Sensor pin description #define PIN 6 Adafruit_NeoPixel strip = Adafruit_NeoPixel(1, PIN, NEO_GRB + NEO_KHZ800); #define Light_PIN A0 Light intensity pre-set value and the light can be divided into three levels. #define Light_value1 400 #define Light_value2 800 Light detection sensorValue = analogRead(Light_PIN); The colored LED will 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)); Result Change light intensity from weak to strong, you can see gree, blue and red in order. Video