/**************************************************************************** * This example was developed by the Hackerspace San Salvador to demonstrate * the simultaneous use of the NeoPixel library and the Bluetooth SoftDevice. * To compile this example you'll need to add support for the NRF52 based * following the instructions at: * https://github.com/sandeepmistry/arduino-nRF5 * Or adding the following URL to the board manager URLs on Arduino preferences: * https://sandeepmistry.github.io/arduino-nRF5/package_nRF5_boards_index.json * Then you can install the BLEPeripheral library avaiable at: * https://github.com/sandeepmistry/arduino-BLEPeripheral * To test it, compile this example and use the UART module from the nRF * Toolbox App for Android. Edit the interface and send the characters * 'a' to 'i' to switch the animation. * There is a no delay because this example does not block the threads execution * so the change will be shown immediately and will not need to wait for the current * animation to end. * For more info write us at: info _at- teubi.co */ #include #include #include "BLESerial.h" #include #define PIN 15 // Pin where NeoPixels are connected // Declare our NeoPixel strip object: Adafruit_NeoPixel strip(64, PIN, NEO_GRB + NEO_KHZ800); // Argument 1 = Number of pixels in NeoPixel strip // Argument 2 = Arduino pin number (most are valid) // Argument 3 = Pixel type flags, add together as needed: // NEO_KHZ800 800 KHz bitstream (most NeoPixel products w/WS2812 LEDs) // NEO_KHZ400 400 KHz (classic 'v1' (not v2) FLORA pixels, WS2811 drivers) // NEO_GRB Pixels are wired for GRB bitstream (most NeoPixel products) // NEO_RGB Pixels are wired for RGB bitstream (v1 FLORA pixels, not v2) // NEO_RGBW Pixels are wired for RGBW bitstream (NeoPixel RGBW products) // NEOPIXEL BEST PRACTICES for most reliable operation: // - Add 1000 uF CAPACITOR between NeoPixel strip's + and - connections. // - MINIMIZE WIRING LENGTH between microcontroller board and first pixel. // - NeoPixel strip's DATA-IN should pass through a 300-500 OHM RESISTOR. // - AVOID connecting NeoPixels on a LIVE CIRCUIT. If you must, ALWAYS // connect GROUND (-) first, then +, then data. // - When using a 3.3V microcontroller with a 5V-powered NeoPixel strip, // a LOGIC-LEVEL CONVERTER on the data line is STRONGLY RECOMMENDED. // (Skipping these may work OK on your workbench but can fail in the field) // define pins (varies per shield/board) #define BLE_REQ 10 #define BLE_RDY 2 #define BLE_RST 9 // create ble serial instance, see pinouts above BLESerial BLESerial(BLE_REQ, BLE_RDY, BLE_RST); uint8_t current_state = 0; uint8_t rgb_values[3]; void setup() { Serial.begin(115200); Serial.println("Hello World!"); // custom services and characteristics can be added as well BLESerial.setLocalName("UART_HS"); BLESerial.begin(); strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED) strip.show(); // Turn OFF all pixels ASAP //pinMode(PIN, OUTPUT); //digitalWrite(PIN, LOW); current_state = 'a'; } void loop() { while(BLESerial.available()) { uint8_t character = BLESerial.read(); switch(character) { case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': case 'h': current_state = character; break; }; } switch(current_state) { case 'a': colorWipe(strip.Color(255, 0, 0), 20); // Red break; case 'b': colorWipe(strip.Color( 0, 255, 0), 20); // Green break; case 'c': colorWipe(strip.Color( 0, 0, 255), 20); // Blue break; case 'd': theaterChase(strip.Color(255, 0, 0), 20); // Red break; case 'e': theaterChase(strip.Color( 0, 255, 0), 20); // Green break; case 'f': theaterChase(strip.Color(255, 0, 255), 20); // Cyan break; case 'g': rainbow(10); break; case 'h': theaterChaseRainbow(20); break; } } // Some functions of our own for creating animated effects ----------------- // Fill strip pixels one after another with a color. Strip is NOT cleared // first; anything there will be covered pixel by pixel. Pass in color // (as a single 'packed' 32-bit value, which you can get by calling // strip.Color(red, green, blue) as shown in the loop() function above), // and a delay time (in milliseconds) between pixels. void colorWipe(uint32_t color, int wait) { if(pixelInterval != wait) pixelInterval = wait; // Update delay time strip.setPixelColor(pixelCurrent, color); // Set pixel's color (in RAM) strip.show(); // Update strip to match pixelCurrent++; // Advance current pixel if(pixelCurrent >= pixelNumber) // Loop the pattern from the first LED pixelCurrent = 0; } // Theater-marquee-style chasing lights. Pass in a color (32-bit value, // a la strip.Color(r,g,b) as mentioned above), and a delay time (in ms) // between frames. void theaterChase(uint32_t color, int wait) { if(pixelInterval != wait) pixelInterval = wait; // Update delay time for(int i = 0; i < pixelNumber; i++) { strip.setPixelColor(i + pixelQueue, color); // Set pixel's color (in RAM) } strip.show(); // Update strip to match for(int i=0; i < pixelNumber; i+3) { strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); // Set pixel's color (in RAM) } pixelQueue++; // Advance current pixel if(pixelQueue >= 3) pixelQueue = 0; // Loop the pattern from the first LED } // Rainbow cycle along whole strip. Pass delay time (in ms) between frames. void rainbow(uint8_t wait) { if(pixelInterval != wait) pixelInterval = wait; for(uint16_t i=0; i < pixelNumber; i++) { strip.setPixelColor(i, Wheel((i + pixelCycle) & 255)); // Update delay time } strip.show(); // Update strip to match pixelCycle++; // Advance current cycle if(pixelCycle >= 256) pixelCycle = 0; // Loop the cycle back to the begining } //Theatre-style crawling lights with rainbow effect void theaterChaseRainbow(uint8_t wait) { if(pixelInterval != wait) pixelInterval = wait; // Update delay time for(int i=0; i < pixelNumber; i+3) { strip.setPixelColor(i + pixelQueue, Wheel((i + pixelCycle) % 255)); // Update delay time } strip.show(); for(int i=0; i < pixelNumber; i+3) { strip.setPixelColor(i + pixelQueue, strip.Color(0, 0, 0)); // Update delay time } pixelQueue++; // Advance current queue pixelCycle++; // Advance current cycle if(pixelQueue >= 3) pixelQueue = 0; // Loop if(pixelCycle >= 256) pixelCycle = 0; // Loop } // Input a value 0 to 255 to get a color value. // The colours are a transition r - g - b - back to r. uint32_t Wheel(byte WheelPos) { WheelPos = 255 - WheelPos; if(WheelPos < 85) { return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3); } if(WheelPos < 170) { WheelPos -= 85; return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3); } WheelPos -= 170; return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0); }