example code to display mpl1152a data on a jhd 162a 16x2 lcd display
Dependencies: mbed mpl115a2 BME280_SPI TextLCD
Diff: main.cpp
- Revision:
- 3:99befa3962d4
- Parent:
- 2:e1e9cca4d7e3
- Child:
- 4:1775558d1a45
diff -r e1e9cca4d7e3 -r 99befa3962d4 main.cpp --- a/main.cpp Mon Mar 30 12:33:24 2020 +0000 +++ b/main.cpp Thu Apr 02 13:35:13 2020 +0000 @@ -1,6 +1,6 @@ #include "mbed.h" #include "MPL115A2.h" -#include "BME280.h" +#include "BME280_SPI.h" #include "TextLCD.h" @@ -8,26 +8,48 @@ Serial pc(USBTX, USBRX); // tx, rx -// MPL115A2 p_sensor(&i2c, &pc); //DEBUG verion MPL115A2 mpl_sensor(&i2c); -//BME280 bme_sensor(p28, p27); // sda, scl + +BME280_SPI bme_sensor(p5, p6, p7, p8); // mosi, miso, sclk, cs + TextLCD lcd(p24, p25, p26, p27, p28, p29); // rs, rw, e, d4, d5, d6, d7 -//TextLCD lcd(p21, p22, p23, p24, p25, p26); // rs, rw, e, d4, d5, d6, d7 + +InterruptIn button(p11); +bool display_hPa = true; +const double hPa2cmH2O = 1.01974428892; + +void toggleDisplayFormat() { + display_hPa ^= display_hPa; +} int main() { - mpl_sensor.begin(); + bool display_hPa = true; + + button.rise(&toggleDisplayFormat); + mpl_sensor.begin(); + + // main loop while(1) - { - + { mpl_sensor.ReadSensor(); lcd.cls(); // WITHOUT THIS THE ENDLESS BEEP OCCURS - lcd.printf("%0.2f hPa\n%0.2f C %\n", mpl_sensor.GetPressure(), mpl_sensor.GetTemperature()); - wait(.1); - //lcd.cls(); // WITHOUT THIS THE ENDLESS BEEP OCCURS - //lcd.printf("%0.2f hPa\n%0.2f C %\n", bme_sensor.getPressure(), bme_sensor.getTemperature()); - //wait(1); - + if(display_hPa) { + lcd.printf("MPL: %4.4f hPa\nBME: %4.4f hPa%\n", + mpl_sensor.GetPressure(), + bme_sensor.getTemperature()); + pc.printf("MPL: %4.4f hPa\nBME: %4.4f hPa%\n", + mpl_sensor.GetPressure(), + bme_sensor.getTemperature()); + } + else { + lcd.printf("MPL: %4.4f cmH2O\nBME: %4.4f cmH2O%\n", + (mpl_sensor.GetPressure() * hPa2cmH2O), + (bme_sensor.getTemperature() * hPa2cmH2O)); + pc.printf("MPL: %4.4f cmH2O\nBME: %4.4f cmH2O%\n", + (mpl_sensor.GetPressure() * hPa2cmH2O), + (bme_sensor.getTemperature() * hPa2cmH2O)); + } } }