main.cpp

00001 #include "mbed.h"
00002 #include "EPD_GDE021A1.h"
00003 #include "dht22.h"
00004 
00005 #define EPD_CS       PA_15
00006 #define EPD_DC       PB_11
00007 #define EPD_RESET    PB_2
00008 #define EPD_BUSY     PA_8
00009 #define EPD_POWER    PB_10
00010 #define EPD_SPI_MOSI PB_5
00011 #define EPD_SPI_MISO PB_4
00012 #define EPD_SPI_SCK  PB_3
00013 #define PTB18        PC_15
00014 
00015 EPD_GDE021A1 epd(EPD_CS, EPD_DC, EPD_RESET, EPD_BUSY, EPD_POWER, EPD_SPI_MOSI, EPD_SPI_MISO, EPD_SPI_SCK);
00016 
00017 DigitalOut led1(LED1);
00018 DigitalOut led2(LED2);
00019 
00020 Serial host(USBTX, USBRX);
00021 DHT22 dht22(PTB18);
00022 
00023 //width 48
00024 //height 26
00025 static uint8_t Battery_img[] = {
00026 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00027 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00028 0xfe, 0xff, 0xff, 0xff, 0xff, 0x0f, 
00029 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x0c, 
00030 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00031 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00032 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00033 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00034 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x18, 
00035 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00036 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00037 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00038 0xfe, 0xff, 0xff, 0x3f, 0xff, 0x39, 
00039 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00040 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00041 0xfe, 0xff, 0xff, 0x3f, 0x10, 0x38, 
00042 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x38, 
00043 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x18, 
00044 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00045 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00046 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x08, 
00047 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x0c, 
00048 0xfe, 0xff, 0xff, 0x3f, 0x00, 0x0c, 
00049 0xfe, 0xff, 0xff, 0xff, 0xff, 0x0f, 
00050 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00051 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
00052 };
00053 
00054 int main()
00055 {
00056     led1 = 1;
00057     DHT22_data_t dht22_data;
00058     
00059     epd.Clear(EPD_COLOR_WHITE);  
00060     epd.DisplayStringAtLine(5, (uint8_t*)"MBED", CENTER_MODE);
00061     epd.DisplayStringAtLine(3, (uint8_t*)"Epaper display", LEFT_MODE);
00062     epd.DisplayStringAtLine(2, (uint8_t*)"demo", LEFT_MODE);
00063     epd.DrawImage(130, 0, 48, 26, Battery_img);
00064     epd.DrawRect(50, 4, 60, 4);
00065     epd.RefreshDisplay();
00066     wait(1);
00067   
00068     while(1) {
00069         led1 = 1;
00070         wait_ms(500);
00071         
00072         dht22.read(&dht22_data);
00073         
00074         float temperature = dht22_data.temp / 10.0f;
00075         float humidity = dht22_data.humidity / 10.0f;
00076         
00077         host.printf("Temperature: %2.2f    Humidity: %2.2f%%\r\n", temperature, humidity);
00078         wait_ms(500);
00079         
00080         char str1[5], str2[5];
00081         sprintf(str1, "%.1f", temperature);
00082         sprintf(str2, "%.1f", humidity);
00083         
00084         led1 = 0;
00085         led2 = 1;
00086         
00087         epd.Clear(EPD_COLOR_WHITE);  
00088         epd.DisplayStringAtLine(5, (uint8_t*)"Adrien", CENTER_MODE);
00089         epd.DisplayStringAtLine(3, (uint8_t*)"Temperature: ", LEFT_MODE);
00090         epd.DisplayStringAtLine(3, (uint8_t*)str1, RIGHT_MODE);
00091         epd.DisplayStringAtLine(2, (uint8_t*)"Humidity: ", LEFT_MODE);
00092         epd.DisplayStringAtLine(2, (uint8_t*)str2, RIGHT_MODE);
00093         epd.RefreshDisplay();
00094         
00095         led2 = 0;
00096         wait_ms(500);
00097     }
00098 }