Circles improved rings

examples/SSD1306RingDemo/SSD1306RingDemo.ino

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+ /**
+  * The MIT License (MIT)
+  *
+  * Copyright (c) 2020 by NoobTracker
+  *
+  * Permission is hereby granted, free of charge, to any person obtaining a copy
+  * of this software and associated documentation files (the "Software"), to deal
+  * in the Software without restriction, including without limitation the rights
+  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  * copies of the Software, and to permit persons to whom the Software is
+  * furnished to do so, subject to the following conditions:
+  *
+  * The above copyright notice and this permission notice shall be included in all
+  * copies or substantial portions of the Software.
+  *
+  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  * SOFTWARE.
+  *
+  * ThingPulse invests considerable time and money to develop these open source libraries.
+  * Please support us by buying our products (and not the clones) from
+  * https://thingpulse.com
+  *
+  */
+
+ // Include the correct display library
+ // For a connection via I2C using Wire include
+ #include <Wire.h>  // Only needed for Arduino 1.6.5 and earlier
+ #include "SSD1306Wire.h" // legacy include: `#include "SSD1306.h"`
+ // or #include "SH1106Wire.h", legacy include: `#include "SH1106.h"`
+ // For a connection via I2C using brzo_i2c (must be installed) include
+ // #include <brzo_i2c.h> // Only needed for Arduino 1.6.5 and earlier
+ // #include "SSD1306Brzo.h"
+ // #include "SH1106Brzo.h"
+ // For a connection via SPI include
+ // #include <SPI.h> // Only needed for Arduino 1.6.5 and earlier
+ // #include "SSD1306Spi.h"
+ // #include "SH1106SPi.h"
+
+ // Use the corresponding display class:
+
+ // Initialize the OLED display using SPI
+ // D5 -> CLK
+ // D7 -> MOSI (DOUT)
+ // D0 -> RES
+ // D2 -> DC
+ // D8 -> CS
+ // SSD1306Spi        display(D0, D2, D8);
+ // or
+ // SH1106Spi         display(D0, D2);
+
+ // Initialize the OLED display using brzo_i2c
+ // D3 -> SDA
+ // D5 -> SCL
+ // SSD1306Brzo display(0x3c, SDA, SCL);
+ // or
+ // SH1106Brzo  display(0x3c, SDA, SCL);
+
+ // Initialize the OLED display using Wire library
+ SSD1306Wire  display(0x3c, SDA, SCL);
+ // SH1106 display(0x3c, SDA, SCL);
+
+void ring(byte quads, byte pos){
+  float angle = (pos * PI * 2) / 256;
+  float angle2 = ((pos + 0x20) * PI * 2) / 256;
+  display.fillRing(display.getWidth() / 2, display.getHeight() / 2, abs(sin(angle) * 30), abs(sin(angle2) * 25), quads);
+}
+
+void setup() {
+  display.init();
+  display.flipScreenVertically();
+  display.setColor(WHITE);
+}
+uint16_t pos = 0x100;
+void loop() { 
+  display.clear();
+  ring(pos >> 8, pos & 0xFF);
+  pos++;
+  display.display();
+  delay(30);
+}