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