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GP v30 05: Temperature, humidity and pressure sensor

This is the basic code to manage and read the temperature, humidity and pressure sensor.

Required Materials

1 x Waspmote 1 x Battery 1 x Gases PRO board v30 1 x Temperature, Humidity and Pressure sensor BME280

Notes

- Remember to connect the battery to Waspmote for proper operation. - The connection of the sensor is described in the Gases PRO v30 technical guide. - Cycle time: 3 minutes

Code

/*
------- [GP_v30_05] - Temperature, humidity and pressure sensor ---------
Explanation: This is the basic code to manage and read the temperature,
humidity and pressure sensor. Cycle time: 3 minutes
Copyright (C) 2018 Libelium Comunicaciones Distribuidas S.L.
http://www.libelium.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Version: 3.2
Design: David Gascón
Implementation: Alejandro Gállego
*/
#include <WaspSensorGas_Pro.h>
/*
* Waspmote OEM. Possibilities for this sensor:
* - CENTRAL SOCKET
* P&S! Possibilities for this sensor:
* - SOCKET_E
*/
bmeGasesSensor bme;
float temperature; // Stores the temperature in ºC
float humidity; // Stores the realitve humidity in %RH
float pressure; // Stores the pressure in Pa
void setup()
{
USB.ON();
USB.println(F("Temperature, humidity and pressure sensor example"));
}
void loop()
{
///////////////////////////////////////////
// 1. Turn on the sensor
///////////////////////////////////////////
bme.ON();
///////////////////////////////////////////
// 2. Read sensors
///////////////////////////////////////////
// Read enviromental variables
temperature = bme.getTemperature();
humidity = bme.getHumidity();
pressure = bme.getPressure();
// And print the values via USB
USB.println(F("***************************************"));
USB.print(F("Temperature: "));
USB.print(temperature);
USB.println(F(" Celsius degrees"));
USB.print(F("RH: "));
USB.print(humidity);
USB.println(F(" %"));
USB.print(F("Pressure: "));
USB.print(pressure);
USB.println(F(" Pa"));
///////////////////////////////////////////
// 3. Turn off the sensor
///////////////////////////////////////////
bme.OFF();
///////////////////////////////////////////
// 3. Sleep
///////////////////////////////////////////
// Go to deepsleep
// After 3 minutes, Waspmote wakes up thanks to the RTC Alarm
USB.println(F("Go to deep sleep mode..."));
PWR.deepSleep("00:00:03:00", RTC_OFFSET, RTC_ALM1_MODE1, ALL_OFF);
USB.ON();
USB.println(F("Wake up!!\r\n"));
}

Output

H#
Temperature, humidity and pressure sensor example
***************************************
Temperature: 24.2600002288 Celsius degrees
RH: 43.1982421875 %
Pressure: 99752.3593750000 Pa
***************************************
Temperature: 24.3199996948 Celsius degrees
RH: 43.1914062500 %
Pressure: 99750.8281250000 Pa
***************************************
Temperature: 24.3400001525 Celsius degrees
RH: 43.1826171875 %
Pressure: 99748.4531250000 Pa
***************************************
Temperature: 24.3500003814 Celsius degrees
RH: 43.1728515625 %
Pressure: 99751.2343750000 Pa
Last modified 2yr ago