example code to display mpl1152a data on a jhd 162a 16x2 lcd display
Dependencies: mbed mpl115a2 BME280_SPI TextLCD
main.cpp
- Committer:
- skudmunky
- Date:
- 2020-04-02
- Revision:
- 3:99befa3962d4
- Parent:
- 2:e1e9cca4d7e3
- Child:
- 4:1775558d1a45
File content as of revision 3:99befa3962d4:
#include "mbed.h" #include "MPL115A2.h" #include "BME280_SPI.h" #include "TextLCD.h" I2C i2c(p9, p10); // sda, scl Serial pc(USBTX, USBRX); // tx, rx MPL115A2 mpl_sensor(&i2c); 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 InterruptIn button(p11); bool display_hPa = true; const double hPa2cmH2O = 1.01974428892; void toggleDisplayFormat() { display_hPa ^= display_hPa; } int main() { 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 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)); } } }