BME280 example code
Dependencies: BME280 SB1602E mbed
main.cpp@0:4b63426935b8, 2015-04-07 (annotated)
- Committer:
- MACRUM
- Date:
- Tue Apr 07 05:06:28 2015 +0000
- Revision:
- 0:4b63426935b8
BME280 example code
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
MACRUM | 0:4b63426935b8 | 1 | #include "mbed.h" |
MACRUM | 0:4b63426935b8 | 2 | #include "SB1602E.h" |
MACRUM | 0:4b63426935b8 | 3 | #include "BME280.h" |
MACRUM | 0:4b63426935b8 | 4 | |
MACRUM | 0:4b63426935b8 | 5 | SB1602E lcd(I2C_SDA, I2C_SCL); |
MACRUM | 0:4b63426935b8 | 6 | BME280 sensor(I2C_SDA, I2C_SCL); |
MACRUM | 0:4b63426935b8 | 7 | DigitalIn btn(dp15); |
MACRUM | 0:4b63426935b8 | 8 | |
MACRUM | 0:4b63426935b8 | 9 | int main() |
MACRUM | 0:4b63426935b8 | 10 | { |
MACRUM | 0:4b63426935b8 | 11 | lcd.setCharsInLine(8); |
MACRUM | 0:4b63426935b8 | 12 | lcd.contrast(0x30); |
MACRUM | 0:4b63426935b8 | 13 | int last_mode = 0; |
MACRUM | 0:4b63426935b8 | 14 | btn.mode(PullUp); |
MACRUM | 0:4b63426935b8 | 15 | |
MACRUM | 0:4b63426935b8 | 16 | lcd.printf(0, 0, "BME280"); |
MACRUM | 0:4b63426935b8 | 17 | lcd.printf(0, 1, "Demo"); |
MACRUM | 0:4b63426935b8 | 18 | wait(5); |
MACRUM | 0:4b63426935b8 | 19 | |
MACRUM | 0:4b63426935b8 | 20 | while(1) { |
MACRUM | 0:4b63426935b8 | 21 | if (btn == 1) { |
MACRUM | 0:4b63426935b8 | 22 | if (last_mode == 0) |
MACRUM | 0:4b63426935b8 | 23 | lcd.clear(); |
MACRUM | 0:4b63426935b8 | 24 | lcd.printf(0, 0, "%2.2f%cC", sensor.getTemperature(), 0xdf); |
MACRUM | 0:4b63426935b8 | 25 | lcd.printf(0, 1, "%2.2f%%", sensor.getHumidity()); |
MACRUM | 0:4b63426935b8 | 26 | last_mode = 1; |
MACRUM | 0:4b63426935b8 | 27 | } |
MACRUM | 0:4b63426935b8 | 28 | else { |
MACRUM | 0:4b63426935b8 | 29 | if (last_mode == 1) |
MACRUM | 0:4b63426935b8 | 30 | lcd.clear(); |
MACRUM | 0:4b63426935b8 | 31 | lcd.printf(0, 0, "%2.2f%cC", sensor.getTemperature(), 0xdf); |
MACRUM | 0:4b63426935b8 | 32 | lcd.printf(0, 1, "%04.1fhPa", sensor.getPressure()); |
MACRUM | 0:4b63426935b8 | 33 | last_mode = 0; |
MACRUM | 0:4b63426935b8 | 34 | } |
MACRUM | 0:4b63426935b8 | 35 | wait(1); |
MACRUM | 0:4b63426935b8 | 36 | } |
MACRUM | 0:4b63426935b8 | 37 | } |