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int main(int argc, char **argv)
{
uint32 Counter;
int16 Temperature;
uint8 Humidity;
uint8 HwRev;
char Mode;
Counter = 0;
Mode = 0;
HwRev = GetRaspberryHwRevision();
if((argc > 1) && ((argv[1][0]=='S') || (argv[1][0]=='L') || (argv[1][0]=='C'))) Mode = argv[1][0];
if(!Mode)
{
printf("Raspi-SHT21 V3.0.0 by Martin Steppuhn (www.emsystech.de) [" __DATE__ " " __TIME__"]\n");
printf("Options:\n");
printf(" S : [20.0 99]\n");
printf(" L : [temperature=20.0][humidity=99]\n");
printf(" C : [Temperature,20,0][Humidity,99]\n");
printf("RaspberryHwRevision=%i\r\n",HwRev);
}
if(HwRev < 2) I2C_Open("/dev/i2c-0"); // Hardware Revision 1.0
else I2C_Open("/dev/i2c-1"); // Hardware Revision 2.0
I2C_Setup(I2C_SLAVE, 0x40);
if(I2cError)
{
I2C_PrintError();
exit(1);
}
SHT21_Read(&Temperature,&Humidity);
if(Sht21Error == 0)
{
if( Mode == 'S') printf("%.1f\t%u\n",((float)Temperature)/10,Humidity);
else if(Mode == 'L') printf("temperature=%.1f\nhumidity=%u\n",((float)Temperature)/10,Humidity);
else if(Mode == 'C') printf("Temperature,%.1f\nHumidity,%u\n",((float)Temperature)/10,Humidity);
else
{
while(1)
{
SHT21_Read(&Temperature,&Humidity);
if(Sht21Error == 0) printf("%lu\t%.1f\t%u\n",Counter++,((float)Temperature)/10,Humidity);
else { PrintSht21Error(); I2cError = 0; }
DelayMs(1000);
}
}
}
else
{
PrintSht21Error();
}
I2C_Close();
return(0);
}
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int main(int argc, char **argv)
{
int Contrast,Backlight;
Contrast = 9;
Backlight = 1;
printf("RaspiLCD Demo V0.9 by Martin Steppuhn [" __DATE__ " " __TIME__"]\n");
printf("RaspberryHwRevision=%i\r\n",GetRaspberryHwRevision());
if(!RaspiLcdHwInit()) { printf("RaspiLcdHwInit() failed!\r\n"); return 1; }
LCD_Init(); // Init Display
SetBacklight(1); // Turn Backlight on
DemoView = 0;
DemoCpuTemperatureInit();
DemoBubblesInit();
while(1)
{
DemoCount++;
SleepMs(100);
UpdateButtons();
// printf("Buttons: %02X (%02X) Contrast=%i Backlight=%u\r\n",Button,ButtonPressed,Contrast,Backlight);
if((DemoCount & 3) == 0) LogCpuTemperature();
if(BUTTON_PRESSED_UP || BUTTON_PRESSED_DOWN)
{
if(BUTTON_PRESSED_UP && (Contrast < 20)) Contrast++;
if(BUTTON_PRESSED_DOWN && (Contrast > 0)) Contrast--;
LCD_SetContrast(Contrast);
}
if(BUTTON_PRESSED_CENTER)
{
Backlight = (Backlight) ? 0 : 1; // Toggle Backlight
SetBacklight(Backlight); // Write to Hardware
}
if(BUTTON_PRESSED_LEFT && DemoView) DemoView--;
if(BUTTON_PRESSED_RIGHT && (DemoView < 6)) DemoView++;
if( DemoView == 0) DemoLogo();
else if(DemoView == 1) { if((DemoCount & 3) == 0) DemoCpuTemperature(); }
else if(DemoView == 2) DemoBitmap();
else if(DemoView == 3) DemoFont();
else if(DemoView == 4) DemoVector();
else if(DemoView == 5) DemoBubbles();
else if(DemoView == 6) DemoText();
LCD_WriteFramebuffer();
}
return(0);
}
//--------------------------------------------------------------------------------------------------
// Name: HalInit
// Function: Setup GPIO for Raspi_LCD
//
// Parameter: -
// Return: -
//--------------------------------------------------------------------------------------------------
int RaspiLcdHwInit(void)
{
#ifdef QT_EMULATION
return 1; // QT-Simul!
#endif
int HwRev;
HwRev = GetRaspberryHwRevision();
if (!bcm2835_init()) return 0;
// Buttons
PinButton[0] = 17;
PinButton[1] = 4;
PinButton[2] = 24;
PinButton[3] = 23;
PinButton[4] = 22;
PinButton[5] = (HwRev < 2) ? 21 : 27;;
bcm2835_gpio_fsel(PinButton[0],BCM2835_GPIO_FSEL_INPT) ; // Set GPIO Pin to Input
bcm2835_gpio_fsel(PinButton[1],BCM2835_GPIO_FSEL_INPT) ; // Set GPIO Pin to Input
bcm2835_gpio_fsel(PinButton[2],BCM2835_GPIO_FSEL_INPT) ; // Set GPIO Pin to Input
bcm2835_gpio_fsel(PinButton[3],BCM2835_GPIO_FSEL_INPT) ; // Set GPIO Pin to Input
bcm2835_gpio_fsel(PinButton[4],BCM2835_GPIO_FSEL_INPT) ; // Set GPIO Pin to Input
bcm2835_gpio_fsel(PinButton[5],BCM2835_GPIO_FSEL_INPT) ; // Set GPIO Pin to Input
bcm2835_gpio_set_pud(PinButton[0],BCM2835_GPIO_PUD_UP); // Enable Pullup
bcm2835_gpio_set_pud(PinButton[1],BCM2835_GPIO_PUD_UP); // Enable Pullup
bcm2835_gpio_set_pud(PinButton[2],BCM2835_GPIO_PUD_UP); // Enable Pullup
bcm2835_gpio_set_pud(PinButton[3],BCM2835_GPIO_PUD_UP); // Enable Pullup
bcm2835_gpio_set_pud(PinButton[4],BCM2835_GPIO_PUD_UP); // Enable Pullup
bcm2835_gpio_set_pud(PinButton[5],BCM2835_GPIO_PUD_UP); // Enable Pullup
// LCD Display
bcm2835_gpio_fsel(PIN_LCD_MOSI, BCM2835_GPIO_FSEL_OUTP); // GPIO10 Output: MOSI
bcm2835_gpio_fsel(PIN_LCD_SCLK, BCM2835_GPIO_FSEL_OUTP); // GPIO11 Output: SCLK
bcm2835_gpio_fsel(PIN_LCD_RST, BCM2835_GPIO_FSEL_OUTP); // GPIO25 Output: RST
bcm2835_gpio_fsel(PIN_LCD_CS , BCM2835_GPIO_FSEL_OUTP); // GPIO8 Output: CS
bcm2835_gpio_fsel(PIN_LCD_RS, BCM2835_GPIO_FSEL_OUTP); // GPIO7 Output: RS
bcm2835_gpio_fsel(PIN_LCD_BACKLIGHT,BCM2835_GPIO_FSEL_OUTP); // GPIO18 Output: Backlight
Button = ButtonMem = ButtonPressed = 0;
return 1;
}