main.cpp

00001 /* 
00002  * micro:bit weather:bit + SSD1306 OLED 128x64 OLED Test program
00003  *
00004  * Copyright (c) 2017 Kazuhiro Ouchi (@kanpapa)
00005  * Released under the MIT License: http://mbed.org/license/mit
00006  *
00007  * version 0.1 Initial Release
00008  */
00009 #include "MicroBit.h"
00010 #include "mbed_logo.h"
00011 #include "SSD1308.h"  // https://os.mbed.com/users/wim/code/SSD1308_128x64_I2C/
00012 #include "BME280.h"   // https://os.mbed.com/users/MACRUM/code/BME280/
00013 
00014 MicroBit uBit;
00015 MicroBitI2C i2c(I2C_SDA0, I2C_SCL0); 
00016 
00017 // Instantiate OLED SSD1306
00018 // I2C address 0x78
00019 SSD1308 oled = SSD1308(i2c, SSD1308_SA0);
00020 
00021 // I2C address 0x76(default)
00022 // Instantiate BME280 sensor
00023 BME280 sensor = BME280(i2c);
00024      
00025 int main() {
00026     // Initialise the micro:bit runtime.
00027     uBit.init();
00028     
00029     // micro:bit LED test
00030     uBit.display.scroll("HELLO WORLD! :)");
00031     
00032     // OLED test
00033     oled.writeString(0, 0, "Hello World !");
00034    
00035     oled.fillDisplay(0xAA);
00036     oled.setDisplayOff();
00037     wait(1);   
00038     oled.setDisplayOn();
00039  
00040     // weather info display
00041     while (1) {
00042         oled.clearDisplay();
00043         oled.setDisplayInverse();
00044         wait(0.5);
00045         oled.setDisplayNormal();                                         
00046  
00047         oled.writeBitmap((uint8_t*) mbed_logo);
00048         wait(1);
00049     
00050         oled.clearDisplay();
00051         oled.printf("%2.2f degC, %04.2f hPa, %2.2f %%\n", sensor.getTemperature(), sensor.getPressure(), sensor.getHumidity());
00052         wait(10);
00053     }
00054 } //main