Joystick Lantern

Language:	English  • 中文

Objective To control the lantern's color and brightness through Joystick. Principle Here we use Joystick detect the status of the rocker, judge the direction, and control the color and brightness of the LED light. Equipment Module Number Function Microduino-CoreUSB 1 Core board Microduino-Sensorhub 1 Sensor pin board Microduino-Color LED 1 Colored light Microduino-Joystick 1 Joystick sensor Microduino-BM 1 Battery management File:Joystick colorled.jpg 600px Preparation Setup 1：Connect the IN on the back of the Color LED to the D6 digital port of the Hub. (D6 is the pin to control LED, which can be customized by used. ) Setup 2：Then, connect the Joystick to A0/A1 interface. 600px Setup 3：Stack the CoreUSB, Hub, Color led and Joystick together and then connect them to the computer with a USB cable. 600px Debugging Open Arduino IDE and copy the following code into IDE. #include <Adafruit_NeoPixel.h> #define PIN 6 Adafruit_NeoPixel strip = Adafruit_NeoPixel(6, PIN, NEO_GRB + NEO_KHZ800); uint32_t color_m[9][3] = { {0, 255, 255}, {255, 0, 0}, {248, 141, 30}, {255, 255, 0}, {0, 255, 0}, {0, 127, 255}, {0, 0, 255}, {139, 0, 255}, {255, 255, 255} }; uint32_t color[9] = { strip.Color(0, 0, 0), strip.Color(255, 0, 0), strip.Color(248, 141, 30), strip.Color(255, 255, 0), strip.Color(0, 255, 0), strip.Color(0, 127, 255), strip.Color(0, 0, 255), strip.Color(139, 0, 255), strip.Color(255, 255, 255) }; #define JoystickX_PIN A1 #define JoystickY_PIN A0 int sensorValueX, sensorValueY; int num, color_l; #define val_max 255 #define val_min 0 void setup() { // put your setup code here, to run once: Serial.begin(9600); strip.begin(); strip.show(); // Initialize all pixels to 'off' pinMode(JoystickX_PIN, INPUT); pinMode(JoystickY_PIN, INPUT); for (int i = 0; i < 9; i++) { colorWipe(color[i]); delay(300); } colorWipe(color[0]); } void loop() { // put your main code here, to run repeatedly: sensorValueX = analogRead(JoystickX_PIN); sensorValueY = analogRead(JoystickY_PIN); if (sensorValueY <= 10) { delay(500); num++; if (num > 8) num = 0; } else if (sensorValueY > 800) { delay(500); num--; if (num < 0) num = 8; } if (sensorValueX <= 10) { delay(10); color_l++; if (color_l > 255) color_l = 255; } else if (sensorValueX > 800) { delay(10); color_l--; if (color_l < 0) color_l = 0; } colorWipe(strip.Color(map(color_l, val_min, val_max, 0, color_m[num][0]), map(color_l, val_min, val_max, 0, color_m[num][1]), map(color_l, val_min, val_max, 0, color_m[num][2]))); /* Serial.print(num); Serial.print("\t"); Serial.println(color_l); */ } void colorWipe(uint32_t c) { for (uint16_t i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, c); strip.show(); } } Choose the right board and COM port, compile and download. Code Description Pre-set color: " color_m[9][3"; Currently, there are nine colors, which can be changed by users. The number of color needs to correspond to array. For example, if you add two colors, they needs to changed to " color_m[11][3]" correspondingly. Definition of the Joystick control pin: #define JoystickX_PIN A1 #define JoystickY_PIN A0 Color selection in the X-axis direction if (sensorValueY <= 10) { delay(500); num++; if (num > 8) num = 0; } else if (sensorValueY > 800) { delay(500); num--; if (num < 0) num = 8; } Brightness selection in the Y-axis direction. if (sensorValueX <= 10) { delay(10); color_l++; if (color_l > 255) color_l = 255; } else if (sensorValueX > 800) { delay(10); color_l--; if (color_l < 0) color_l = 0; } Colored LED display colorWipe(strip.Color(map(color_l, val_min, val_max, 0, color_m[num][0]), map(color_l, val_min, val_max, 0, color_m[num][1]), map(color_l, val_min, val_max, 0, color_m[num][2]))); Result Toggle the Joystick in the X-axis direction to choose color of the LED light and in the Y-axis to select brightness. Video