c2-utopia/lib/Adafruit NeoPixel/examples/StrandtestBLE/StrandtestBLE.ino

193 lines
7.7 KiB
C++

/****************************************************************************
* 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 delay because this example blocks the thread of execution but
* the change will be shown after the current animation ends. (This might
* take a couple of seconds)
* For more info write us at: info _at- teubi.co
*/
#include <SPI.h>
#include <BLEPeripheral.h>
#include "BLESerial.h"
#include <Adafruit_NeoPixel.h>
#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;
}
}
// 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) {
for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
strip.setPixelColor(i, color); // Set pixel's color (in RAM)
strip.show(); // Update strip to match
delay(wait); // Pause for a moment
}
}
// 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) {
for(int a=0; a<10; a++) { // Repeat 10 times...
for(int b=0; b<3; b++) { // 'b' counts from 0 to 2...
strip.clear(); // Set all pixels in RAM to 0 (off)
// 'c' counts up from 'b' to end of strip in steps of 3...
for(int c=b; c<strip.numPixels(); c += 3) {
strip.setPixelColor(c, color); // Set pixel 'c' to value 'color'
}
strip.show(); // Update strip with new contents
delay(wait); // Pause for a moment
}
}
}
// Rainbow cycle along whole strip. Pass delay time (in ms) between frames.
void rainbow(int wait) {
// Hue of first pixel runs 5 complete loops through the color wheel.
// Color wheel has a range of 65536 but it's OK if we roll over, so
// just count from 0 to 5*65536. Adding 256 to firstPixelHue each time
// means we'll make 5*65536/256 = 1280 passes through this outer loop:
for(long firstPixelHue = 0; firstPixelHue < 5*65536; firstPixelHue += 256) {
for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
// Offset pixel hue by an amount to make one full revolution of the
// color wheel (range of 65536) along the length of the strip
// (strip.numPixels() steps):
int pixelHue = firstPixelHue + (i * 65536L / strip.numPixels());
// strip.ColorHSV() can take 1 or 3 arguments: a hue (0 to 65535) or
// optionally add saturation and value (brightness) (each 0 to 255).
// Here we're using just the single-argument hue variant. The result
// is passed through strip.gamma32() to provide 'truer' colors
// before assigning to each pixel:
strip.setPixelColor(i, strip.gamma32(strip.ColorHSV(pixelHue)));
}
strip.show(); // Update strip with new contents
delay(wait); // Pause for a moment
}
}
// Rainbow-enhanced theater marquee. Pass delay time (in ms) between frames.
void theaterChaseRainbow(int wait) {
int firstPixelHue = 0; // First pixel starts at red (hue 0)
for(int a=0; a<30; a++) { // Repeat 30 times...
for(int b=0; b<3; b++) { // 'b' counts from 0 to 2...
strip.clear(); // Set all pixels in RAM to 0 (off)
// 'c' counts up from 'b' to end of strip in increments of 3...
for(int c=b; c<strip.numPixels(); c += 3) {
// hue of pixel 'c' is offset by an amount to make one full
// revolution of the color wheel (range 65536) along the length
// of the strip (strip.numPixels() steps):
int hue = firstPixelHue + c * 65536L / strip.numPixels();
uint32_t color = strip.gamma32(strip.ColorHSV(hue)); // hue -> RGB
strip.setPixelColor(c, color); // Set pixel 'c' to value 'color'
}
strip.show(); // Update strip with new contents
delay(wait); // Pause for a moment
firstPixelHue += 65536 / 90; // One cycle of color wheel over 90 frames
}
}
}