Initial commit, with some tests for OLED display

.gitignore

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+.pioenvs
+.piolibdeps
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json

.travis.yml

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+# Continuous Integration (CI) is the practice, in software
+# engineering, of merging all developer working copies with a shared mainline
+# several times a day < https://docs.platformio.org/page/ci/index.html >
+#
+# Documentation:
+#
+# * Travis CI Embedded Builds with PlatformIO
+#   < https://docs.travis-ci.com/user/integration/platformio/ >
+#
+# * PlatformIO integration with Travis CI
+#   < https://docs.platformio.org/page/ci/travis.html >
+#
+# * User Guide for `platformio ci` command
+#   < https://docs.platformio.org/page/userguide/cmd_ci.html >
+#
+#
+# Please choose one of the following templates (proposed below) and uncomment
+# it (remove "# " before each line) or use own configuration according to the
+# Travis CI documentation (see above).
+#
+
+
+#
+# Template #1: General project. Test it using existing `platformio.ini`.
+#
+
+# language: python
+# python:
+#     - "2.7"
+#
+# sudo: false
+# cache:
+#     directories:
+#         - "~/.platformio"
+#
+# install:
+#     - pip install -U platformio
+#     - platformio update
+#
+# script:
+#     - platformio run
+
+
+#
+# Template #2: The project is intended to be used as a library with examples.
+#
+
+# language: python
+# python:
+#     - "2.7"
+#
+# sudo: false
+# cache:
+#     directories:
+#         - "~/.platformio"
+#
+# env:
+#     - PLATFORMIO_CI_SRC=path/to/test/file.c
+#     - PLATFORMIO_CI_SRC=examples/file.ino
+#     - PLATFORMIO_CI_SRC=path/to/test/directory
+#
+# install:
+#     - pip install -U platformio
+#     - platformio update
+#
+# script:
+#     - platformio ci --lib="." --board=ID_1 --board=ID_2 --board=ID_N

.vscode/extensions.json

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+{
+	// See http://go.microsoft.com/fwlink/?LinkId=827846
+	// for the documentation about the extensions.json format
+	"recommendations": [
+		"platformio.platformio-ide"
+	]
+}

lel.cpp

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+#include <Arduino.h>
+#include <ESP8266WiFi.h>
+
+const char* ssid = "MEWS-WB3";
+const char* password = "clutter-defeat-writhe";
+
+void setup() {
+    // baudrate for serial reading
+    Serial.begin(9600);
+    delay(1000);
+    Serial.println("test");
+    Serial.println();
+
+    // Open wifi connection to home wifi
+    WiFi.begin(ssid, password);
+
+    while (WiFi.status() != WL_CONNECTED) {
+        delay(500);
+        Serial.println(".");
+    }
+    Serial.println("");
+    Serial.println("Wifi connected");
+}
+
+void loop() {
+    // put your main code here, to run repeatedly:
+}

lib/readme.txt

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link them to executable files.
+
+The source code of each library should be placed in separate directories, like
+"lib/private_lib/[here are source files]".
+
+For example, see the structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- readme.txt --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+Then in `src/main.c` you should use:
+
+#include <Foo.h>
+#include <Bar.h>
+
+// rest H/C/CPP code
+
+PlatformIO will find your libraries automatically, configure preprocessor's
+include paths and build them.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:nodemcuv2]
+platform = espressif8266
+board = nodemcuv2
+framework = arduino
+lib_deps = 
+  562

src/images.h

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+#define WiFi_Logo_width 60
+#define WiFi_Logo_height 36
+const uint8_t WiFi_Logo_bits[] PROGMEM = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xFF, 0x07, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0xE0, 0xFF, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xFF,
+    0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0xFF, 0xFF, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0xFE, 0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF,
+    0xFF, 0x03, 0x00, 0x00, 0x00, 0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00,
+    0x00, 0xFF, 0xFF, 0xFF, 0x07, 0xC0, 0x83, 0x01, 0x80, 0xFF, 0xFF, 0xFF,
+    0x01, 0x00, 0x07, 0x00, 0xC0, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x0C, 0x00,
+    0xC0, 0xFF, 0xFF, 0x7C, 0x00, 0x60, 0x0C, 0x00, 0xC0, 0x31, 0x46, 0x7C,
+    0xFC, 0x77, 0x08, 0x00, 0xE0, 0x23, 0xC6, 0x3C, 0xFC, 0x67, 0x18, 0x00,
+    0xE0, 0x23, 0xE4, 0x3F, 0x1C, 0x00, 0x18, 0x00, 0xE0, 0x23, 0x60, 0x3C,
+    0x1C, 0x70, 0x18, 0x00, 0xE0, 0x03, 0x60, 0x3C, 0x1C, 0x70, 0x18, 0x00,
+    0xE0, 0x07, 0x60, 0x3C, 0xFC, 0x73, 0x18, 0x00, 0xE0, 0x87, 0x70, 0x3C,
+    0xFC, 0x73, 0x18, 0x00, 0xE0, 0x87, 0x70, 0x3C, 0x1C, 0x70, 0x18, 0x00,
+    0xE0, 0x87, 0x70, 0x3C, 0x1C, 0x70, 0x18, 0x00, 0xE0, 0x8F, 0x71, 0x3C,
+    0x1C, 0x70, 0x18, 0x00, 0xC0, 0xFF, 0xFF, 0x3F, 0x00, 0x00, 0x08, 0x00,
+    0xC0, 0xFF, 0xFF, 0x1F, 0x00, 0x00, 0x0C, 0x00, 0x80, 0xFF, 0xFF, 0x1F,
+    0x00, 0x00, 0x06, 0x00, 0x80, 0xFF, 0xFF, 0x0F, 0x00, 0x00, 0x07, 0x00,
+    0x00, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x00, 0x00, 0xF8, 0xFF, 0xFF,
+    0xFF, 0x7F, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xFF, 0x01, 0x00, 0x00,
+    0x00, 0x00, 0xFC, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xFF,
+    0x7F, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xFF, 0x1F, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x80, 0xFF, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};

src/main.cpp

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+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 by ThingPulse, Daniel Eichhorn
+ * Copyright (c) 2018 by Fabrice Weinberg
+ *
+ * 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"
+
+// Include custom images
+#include "images.h"
+
+// 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, D3, D5);
+// or
+// SH1106Brzo  display(0x3c, D3, D5);
+
+// Initialize the OLED display using Wire library
+SSD1306Wire  display(0x3c, D3, D5);
+// SH1106 display(0x3c, D3, D5);
+
+
+#define DEMO_DURATION 3000
+typedef void (*Demo)(void);
+
+int demoMode = 0;
+int counter = 1;
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println();
+  Serial.println();
+
+
+  // Initialising the UI will init the display too.
+  display.init();
+
+  display.flipScreenVertically();
+  display.setFont(ArialMT_Plain_10);
+
+}
+
+void drawFontFaceDemo() {
+    // Font Demo1
+    // create more fonts at http://oleddisplay.squix.ch/
+    display.setTextAlignment(TEXT_ALIGN_LEFT);
+    display.setFont(ArialMT_Plain_10);
+    display.drawString(0, 0, "Hello world");
+    display.setFont(ArialMT_Plain_16);
+    display.drawString(0, 10, "Hello world");
+    display.setFont(ArialMT_Plain_24);
+    display.drawString(0, 26, "Hello world");
+}
+
+void drawTextFlowDemo() {
+    display.setFont(ArialMT_Plain_10);
+    display.setTextAlignment(TEXT_ALIGN_LEFT);
+    display.drawStringMaxWidth(0, 0, 128,
+      "Lorem ipsum\n dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore." );
+}
+
+void drawTextAlignmentDemo() {
+    // Text alignment demo
+  display.setFont(ArialMT_Plain_10);
+
+  // The coordinates define the left starting point of the text
+  display.setTextAlignment(TEXT_ALIGN_LEFT);
+  display.drawString(0, 10, "Left aligned (0,10)");
+
+  // The coordinates define the center of the text
+  display.setTextAlignment(TEXT_ALIGN_CENTER);
+  display.drawString(64, 22, "Center aligned (64,22)");
+
+  // The coordinates define the right end of the text
+  display.setTextAlignment(TEXT_ALIGN_RIGHT);
+  display.drawString(128, 33, "Right aligned (128,33)");
+}
+
+void drawRectDemo() {
+      // Draw a pixel at given position
+    for (int i = 0; i < 10; i++) {
+      display.setPixel(i, i);
+      display.setPixel(10 - i, i);
+    }
+    display.drawRect(12, 12, 20, 20);
+
+    // Fill the rectangle
+    display.fillRect(14, 14, 17, 17);
+
+    // Draw a line horizontally
+    display.drawHorizontalLine(0, 40, 20);
+
+    // Draw a line horizontally
+    display.drawVerticalLine(40, 0, 20);
+}
+
+void drawCircleDemo() {
+  for (int i=1; i < 8; i++) {
+    display.setColor(WHITE);
+    display.drawCircle(32, 32, i*3);
+    if (i % 2 == 0) {
+      display.setColor(BLACK);
+    }
+    display.fillCircle(96, 32, 32 - i* 3);
+  }
+}
+
+void drawProgressBarDemo() {
+  int progress = (counter / 5) % 100;
+  // draw the progress bar
+  display.drawProgressBar(0, 32, 120, 10, progress);
+
+  // draw the percentage as String
+  display.setTextAlignment(TEXT_ALIGN_CENTER);
+  display.drawString(64, 15, String(progress) + "%");
+}
+
+void drawImageDemo() {
+    // see http://blog.squix.org/2015/05/esp8266-nodemcu-how-to-create-xbm.html
+    // on how to create xbm files
+    display.drawXbm(34, 14, WiFi_Logo_width, WiFi_Logo_height, WiFi_Logo_bits);
+}
+
+Demo demos[] = {drawFontFaceDemo, drawTextFlowDemo, drawTextAlignmentDemo, drawRectDemo, drawCircleDemo, drawProgressBarDemo, drawImageDemo};
+int demoLength = (sizeof(demos) / sizeof(Demo));
+long timeSinceLastModeSwitch = 0;
+
+void loop() {
+  // clear the display
+  display.clear();
+  // draw the current demo method
+  demos[demoMode]();
+
+  display.setTextAlignment(TEXT_ALIGN_RIGHT);
+  display.drawString(10, 128, String(millis()));
+  // write the buffer to the display
+  display.display();
+
+  if (millis() - timeSinceLastModeSwitch > DEMO_DURATION) {
+    demoMode = (demoMode + 1)  % demoLength;
+    timeSinceLastModeSwitch = millis();
+  }
+  counter++;
+  delay(10);
+}