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Gašper Dobrovoljc
2023-03-11 15:11:03 +01:00
commit ec125f27db
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lib/Adafruit_NeoPixel/examples/StrandtestArduinoBLE/StrandtestArduinoBLE.ino Normal file
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/****************************************************************************
* This example is based on StrandtestBLE example and adapts it to use
* the new ArduinoBLE library.
*
* https://github.com/arduino-libraries/ArduinoBLE
*
* Supported boards:
* Arduino MKR WiFi 1010, Arduino Uno WiFi Rev2 board, Arduino Nano 33 IoT,
Arduino Nano 33 BLE, or Arduino Nano 33 BLE Sense board.
*
* You can use a generic BLE central app, like LightBlue (iOS and Android) or
* nRF Connect (Android), to interact with the services and characteristics
* created in this sketch.
*
* This example code is in the public domain.
*
*/
#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)
uint8_t rgb_values[3];
#include <ArduinoBLE.h>
BLEService ledService("19B10000-E8F2-537E-4F6C-D104768A1214"); // BLE LED Service
// BLE LED Switch Characteristic - custom 128-bit UUID, read and writable by central
BLEByteCharacteristic switchCharacteristic("19B10001-E8F2-537E-4F6C-D104768A1214", BLERead | BLEWrite);
void setup()
{
Serial.begin(115200);
Serial.println("Hello World!");
// custom services and characteristics can be added as well
// begin initialization
if (!BLE.begin())
{
Serial.println("starting BLE failed!");
while (1)
;
}
Serial.print("Peripheral address: ");
Serial.println(BLE.address());
// set advertised local name and service UUID:
BLE.setLocalName("LED");
BLE.setAdvertisedService(ledService);
// add the characteristic to the service
ledService.addCharacteristic(switchCharacteristic);
// add service
BLE.addService(ledService);
// set the initial value for the characeristic:
switchCharacteristic.writeValue(0);
// start advertising
BLE.advertise();
strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
strip.show(); // Turn OFF all pixels ASAP
pinMode(PIN, OUTPUT);
digitalWrite(PIN, LOW);
}
void loop()
{
BLEDevice central = BLE.central();
// if a central is connected to peripheral:
if (central)
{
Serial.print("Connected to central: ");
// print the central's MAC address:
Serial.println(central.address());
// while the central is still connected to peripheral:
while (central.connected())
{
// if the remote device wrote to the characteristic,
// use the value to control the LED:
if (switchCharacteristic.written())
{
switch (switchCharacteristic.value())
{
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
}
}
}